Manik Kakkar, Jagruti M. Patil, Vishwas Trivedi, Anushka
Yadav, Ratan K Saha, Shilpa Rao, Vikas Vazhayil,
Hardik Pandya, Anita Mahadevan, Himanshu Shekhar, and Karla
P. Mercado-Shekhar,
Hermite-scan imaging for differentiating glioblastoma from
normal brain: Simulations and ex vivo studies for
applications in intra-operative tumor identification, The Journal of the Acoustical Society of America, 154(6),
3833-3841, 2023.
[PDF]
Sudeep Mondal, Subhadip Paul, Navjot Singh and
Ratan K Saha,
Deep learning on photoacoustic tomography to remove image
distortion due to inaccurate measurement of scanning
radius, Biomedical Optics Express, 14(11), 5817-5832, 2023.
[PDF]
Pankaj Warbal and Ratan K Saha,
Photoacoustic tomography with a model-based approach
involving realistic detector properties, Results in Optics, 13, 100528, 2023.
[PDF]
Pankaj Warbal and Ratan K Saha,
Performance comparison of commonly used photoacoustic
tomography reconstruction algorithms under various
blurring conditions, Journal of Modern Optics, 69(9), 487-501, 2022.
[PDF]
Ratan K. Saha,
Predicting optoacoustic spectral behaviour of human
erythrocytes, stomatocytes and echinocytes using a
modified Green's function method, European Biophysics Journal, 51, 67-76, 2022.
[PDF]
Avijit Paul, Pankaj Warbal, Amrita Mukherjee, Subhadip Paul
and Ratan K. Saha,
Exploring polynomial based interpolation schemes for
photoacoustic tomographic image reconstruction, Biomedical Physics and Engineering Express, 8, 015019,
2022.
[PDF]
Anuj Kaushik and Ratan K Saha,
Exploring High Frequency Optoacoustic Method for
Characterization of Nanoparticles, Results in Optics, 5, 100139, 2021.
[PDF]
Ratan K Saha,
Solving time-independent inhomogeneous optoacoustic wave
equation numerically with a modified Green's function
approach, The Journal of the Acoustical Society of America, 149(6),
4039-4048, 2021.
[PDF]
Copyright is with the JASA.
https://asa.scitation.org/doi/10.1121/10.0005041
Anuj Kaushik and Ratan K Saha,
Characterization of normal and deformed red blood cells
using simulated differential photoacoustic cross-section
spectral data, Journal of Physics Communications, 5, 035007, 2021.
[PDF]
Ravi Praksh, Divakar Badal, Avijit Paul, Deepak Sonker and
Ratan K Saha,
Photoacoustic signal simulation using discrete particle
approach and its application in tomography, IEEE Transactions on Ultrasonics, Ferroelectrics and
Frequency Control, 68(3), 707-717, 2021.
[PDF]
Ratan K Saha,
Numerical solution to the time-independent inhomogeneous
photoacoustic wave equation using the Born series
methods, Journal of the Optical Society of America A, 37(12),
1907-1915, 2020.
[PDF] [There is a typo in this paper. There should not be any
lebel on the right y-axis in Fig. 4(f).]
Anuj Kaushik, Avijit Paul and Ratan K Saha,
Systematic analysis of frequency dependent differential
photoacoustic cross-section data for source size
estimation, Journal of the Optical Society of America A, 37(12),
1895-1904, 2020.
[PDF]
Anuj Kaushik, Phaneendra K Yalavarthy and
Ratan K Saha,
Convergent Born series improves accuracy of numerical
solution of time independent photoacoustic wave
equation, Journal of Modern Optics, 67(9), 849-855, 2020.
[PDF]
Anuj Kaushik, Deepak Sonker and Ratan K Saha,
Study on angular distribution of differential
photoacoustic cross-section and its implication in source
size determination, Journal of the Optical Society of America A, 36(3),
387-396, 2019.
[PDF] [There is a typo in this paper. The volume of the
spheroidal particles was considered as apprximately 695
micro-meter^3 instead of 524 micro-meter^3.]
Pankaj Warbal, Manojit Pramanik and Ratan K Saha,
Impact of sensor apodization on the tangential resolution
in photoacoustic tomography, Journal of the Optical Society of America A, 36(2),
245-252, 2019.
[PDF]
Ananya Mishra, Divya Maheshwari, Shruti Gupta and
Ratan K Saha,
Simulation and Study of Asynchronous Pacemaker via
MatLab, Research & Reviews: Journal of Medical Science and
Technology, 7(1), 21-26, 2018.
[PDF]
Ratan K Saha, Subhajit Karmakar, Arunabha Adhikari
and Michael C Kolios,
Photoacoustic field calculation for nonspherical
axisymmetric fluid particles, Biomedical Physics and Engineering Express, 3, 015017,
2017.
[PDF]
Romain de Monchy, Francois Destrempes, Ratan K Saha,
Guy Cloutier and Emilie Franceschini,
Coherent and incoherent ultrasound backscatter from cell
aggregates, The Journal of the Acoustical Society of America, 140(3),
2173-2184, 2016.
[PDF]
Ratan K Saha,
A simulation study on the quantitative assessment of
tissue microstructure with photoacoustics, IEEE Transactions on Ultrasonics, Ferroelectrics and
Frequency Control, 62(5), 881-895, 2015.
[PDF]
Subhajit Karmakar, Madhusudan Roy and Ratan K Saha,
Photoacoustic imaging of nanoparticle-containing cells
using single-element focused transducer: A simulation
study, IEEE Transactions on Ultrasonics, Ferroelectrics and
Frequency Control, 62(3), 463-474, 2015.
[PDF]
Ratan K Saha,
Computational modeling of photoacoustic signals from
mixtures of melanoma and red blood cells, The Journal of the Acoustical Society of America, 136(4),
2039-2049, 2014.
[PDF]
Ratan K Saha, Madhusudan Roy and Alokmay Datta,
Simulation study on the photoacoustics of cells with
endocytosed gold nanoparticles, Current Science, 106(11), 1554-1559, 2014.
[PDF]
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy,
Photoacoustic examination of red blood cell
suspensions, Journal of Pure and Applied Ultrasonics, 35(4), 125-128,
2013.
[PDF]
Emilie Franceschini, Ratan K Saha and Guy Cloutier,
Comparison of three scattering models for ultrasound
blood characterization, IEEE Transactions on Ultrasonics, Ferroelectrics and
Frequency Control, 60(11), 2321-2334, 2013.
[PDF]
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy,
Photoacoustic response of suspended and hemolyzed red
blood cells, Applied Physics Letters, 103(4), 044101, 1-4, 2013.
[PDF]
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy,
Assessment of blood oxygen saturation using photoacoustic
technique, Journal of Optics, 42(2), 141-147, 2013.
[PDF]
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy,
Computational investigation on the photoacoustics of
malaria infected red blood cells, PLoS ONE, 7(12), e51774, 1-9, 2012.
[PDF] [Featured in Global Medical Discovery Series, ISSN
1929-8536]
Eno Hysi, Ratan K Saha and Michael C Kolios,
Photoacoustic ultrasound spectroscopy for assessing red
blood cell aggregation and oxygenation, Journal of Biomedical Optics, 17(12), 125006, 1-10, 2012.
[PDF]
Eno Hysi, Ratan K Saha and Michael C Kolios,
On the use of photoacoustics to detect red blood cell
aggregation, Biomedical Optics Express, 3(9), 2326-2338, 2012.
[PDF]
Ratan K Saha, Subhajit Karmakar, Eno Hysi, Madhusudan
Roy and Michael C Kolios,
Validity of a theoretical model to examine blood
oxygenation dependent optoacoustics, Journal of Biomedical Optics, 17(5), 055002, 1-10, 2012.
[PDF]
Ratan K Saha and Michael C Kolios,
Effects of erythrocyte oxygenation on optoacoustic
signals, Journal of Biomedical Optics, 16(11), 115003, 1-9, 2011.
[PDF]
Ratan K Saha and Michael C Kolios,
Effects of cell spatial organization and size
distribution on ultrasound backscattering, IEEE Transactions on Ultrasonics, Ferroelectrics and
Frequency Control, 58(10), 2118-2131, 2011.
[PDF]
Ratan K Saha and Michael C Kolios,
A simulation study on photoacoustic signals from red
blood cells, The Journal of the Acoustical Society of America, 129(5),
2935-2943, 2011.
[PDF]
[Selected for the May 15, 2011 issue of Virtual Journal
of Biological Physics Research.]
Ratan K Saha, Emilie Franceschini and Guy Cloutier,
Assessment of accuracy of the
structure-factor-size-estimator method in determining red
blood cell aggregate size from ultrasound spectral
backscatter coefficient, The Journal of the Acoustical Society of America, 129(4),
2269-2277, 2011.
[PDF]
Roxana M Vlad, Ratan K Saha, Nehad M Alajez, Shawn
Ranieri, Greogory J Czarnota and Michael C Kolios,
An increase in cellular size variance contributes to the
increase in ultrasound backscatter during cell death, Ultrasound in Medicine and Biology, 36(9), 1546-1558,
2010.
[PDF]
Ratan K Saha, Subodh K Sharma and Michael C Kolios,
Single cell size estimation from backscattered spectrum
by using some weak acoustic scattering
approximations, Canadian Acoustics, 38(2), 31-34, 2010.
[PDF]
Subodh K Sharma and Ratan K Saha,
A new approximate formula for scattering of plane
acoustic waves by a spherical obstacle, Acta Acustica, 95, 1-6, 2009.
[PDF]
Ratan K Saha and Guy Cloutier,
Monte Carlo study on ultrasound backscattering by
three-dimensional distributions of red blood cells, Physical Review E, 78, 061919, 1-9, 2008.
[PDF]
Ratan K Saha and Subodh K Sharma,
Determination of accuracy of particle size by acoustic
scattering using a modified Born approximation, Indian Journal of Pure and Applied Physics, 46, 761-770,
2008.
[PDF]
Anik K Chakravorty, Subhasree Mukherjee, Kuntal Ghosh,
Ratan K Saha, Madhusudan Roy and Suparna Mazumdar,
Image classification based on textural analysis of
ultrasound images of normal human liver, Journal of Pure and Applied Ultrasonics, 28, 105-113,
2006.
[PDF]
Ratan K Saha, Manas K Roy, Subhajit Karmakar, Saibal
Saha and Swapan K Sen,
Development of an experimental arrangement for precise
measurement of angular distribution of ultrasound
scattering, Indian Journal of Pure and Applied Physics, 44, 661-669,
2006.
[PDF]
Ratan K Saha, Swapan K Sen, Subodh K Sharma and
Binayak Dutta-Roy,
Improved Born approximations for acoustic wave back
scattering in tissue medium, Journal of Pure and Applied Ultrasonics, 27, 110-118,
2005.
[PDF]
Ratan K Saha and Subodh K Sharma,
Validity of a modified Born approximation for a pulsed
plane wave in acoustic scattering problems, Physics in Medicine and Biology, 50(12), 2823-2836, 2005.
[PDF]
Ratan K Saha, Swapan K Sen, Subodh K Sharma and
Binayak Dutta-Roy,
Comments on ‘Free of speckle ultrasonic imaging of soft
tissue with account of second harmonic signal’, Physics in Medicine and Biology, 49(15), L11-L13, 2004.
[PDF]
Subodh K Sharma and Ratan K Saha,
On the validity of some new acoustic scattering
approximations, Waves in Random Media, 14(4), 525-537, 2004.
[PDF]
Sudeep Mondal, Subhadip Paul, Pankaj Warbal and
Ratan K Saha,
Eliminating the necessity of measurement of precise
scanning radius for image reconstruction in photoacoustic
tomography, Proc. of IEEE IUS 2023. [DOI:
10.1109/IUS51837.2023.10306845]
Sudeep Mondal, Pankaj Warbal, Subhadip Paul and
Ratan K Saha,
Experimental evaluation of sensor directivity using
isotropic total variation minimization in photoacoustic
tomography, Proc. of IEEE IUS 2023. [DOI:
10.1109/IUS51837.2023.10306735]
Ujjal Mandal, Jagpreet Singh and Ratan K Saha,
On the Born series methods for solving inhomogeneous
Helmholtz equation in biomedical photoacoustics, Proc. SPIE 12631, Opto-Acoustic Methods and Applications
in Biophotonics VI, 126310W, 2023. [doi: 10.1117/12.2670935,
ECBO 2023]
Ratan K Saha and Ujjal Mandal,
Estimation of optoacoustic spectra for normal and
pathological red blood cells using a modified Green’s
function approach, Proc. SPIE 12631, Opto-Acoustic Methods and Applications
in Biophotonics VI, 1263109, 2023. [doi: 10.1117/12.2670933,
ECBO 2023]
Pankaj Warbal and and Ratan K Saha,
System matrix approach for attenuation compensation in
photoacoustic tomography, Proc. SPIE 12463, Medical Imaging 2023: Physics of
Medical Imaging, 1246332, 2023. [doi: 10.1117/12.2654123]
Avijit Paul, Pankaj Warbal, Amrita Mukherjee, Subhadip Paul
and Ratan K Saha,
Photoacoustic image reconstruction with polynomial based
interpolation algorithms, paper P_CM15_09, OPTICA digital library, 2022.
Pankaj Warbal and Ratan K Saha,
Assessing role of sensor directivity in the photoacoustic
tomography, paper P_CM15_08, OPTICA digital library, 2022.
Pankaj Warbal and Ratan K Saha,
Removal of blurring induced by band-limited transducers
and broad laser pulse in photoacoustic tomography, Proc. SPIE 11923, Opto-Acoustic Methods and Applications
in Biophotonics V, 1192304, 2021. [doi: 10.1117/12.2615848,
ECBO 2021]
Anuj Kaushik and Ratan K Saha,
A numerical solution of phototacoustic wave equation for
red blood cell by the Born series methods, JTu1B.19, OSA digital library, 2020. [FiO+LS 2020]
Anuj Kaushik, Ravi Prakash and Ratan K Saha,
Exploring High Frequency Photoacoustic Method for
Characterization of Pathological Red Blood Cells, 2019 IEEE Region 10 Conference (TENCON 2019), 102-105,
2019. [doi: 10.1109/TENCON.2019.8929311]
Pankaj Warbal, Ravi Prakash, Manojit Pramanik and
Ratan K Saha,
Wiener filtering for deblurring of reconstructed images in
photoacoustic tomography with finite size apodized
transducers, 2019 IEEE Region 10 Conference (TENCON 2019), 96-101,
2019. [doi: 10.1109/TENCON.2019.8929319]
Anuj Kaushik, Deepak Sonker and Ratan K Saha,
Determining the photoacoustic source size from frequency
dependent differential photoacoustic cross-section
data, OSA digital library, JTu3A.100, 2019. [FiO+LS 2019]
[https://doi.org/10.1364/FIO.2019.JTu3A.100]
Pankaj Warbal, Manojit Pramanik and Ratan K Saha,
A robust modified delay-and-sum algorithm for
photoacoustic tomography imaging with apodized
transducer, proceedings of the SPIE-OSA, 11077, 11077013-1-8, 2019.
[doi: 10.1117/12.2527025, ECBO 2019]
Anuj Kaushik, Deepak Sonker and Ratan K Saha ,
Use of angular distribution of differential photoacoustic
cross-section data for estimating source size, proceedings of the SPIE-OSA, 11077, 110770E-1-9, 2019.
[doi: 10.1117/12.2526991, ECBO 2019]
Ratan K Saha, Muhannad N. Fadhel, Aamna Lawrence,
Subhajit Karmakar, Arunava Adhikari and Michael C Kolios,
Rapid computation of photoacoustic fields from normal and
pathological red blood cells using a Green’s function
method, Proceedings of the SPIE, 10064, 100644U-1-8, 2017. [DOI:
10.1117/12.2253555, Photons Plus Ultrasound: Imaging and
Sensing 2017, SPIE BiOS.]
Romain de Monchy, Francois Destrempes, Ratan K Saha,
Guy Cloutier and Emilie Franceschini,
Coherent and incoherent ultrasound backscatter from cells
in aggregated conformation, Proceedings of the 2016 IEEE International Ultrasonics
Symposium, 2016. [10.1109/ULTSYM.2016.7728605]
Subhajit Karmakar, Eno Hysi, Michael C Kolios and
Ratan K Saha,
Realistic photoacoustic image simulations of collections
of solid spheres using linear array transducer, Proceedings of the SPIE, 9323, 932339-1-8, 2015. [DOI:
10.1117/12.2080794, Photons Plus Ultrasound: Imaging and
Sensing 2015, SPIE BiOS.]
Subhajit Karmakar and Ratan K Saha,
Photoacoustic image simulation of ensemble of light
absorbing cells using linear array transducer, Proceedings of the International Symposium on
Ultrasonics, International Journal of Science and Research,
326-330, 2015. [ISSN (Online): 2319-7064]
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy,
Probing confined and unconfined hemoglobin molecules with
photoacoustics, Proceedings of the SPIE, 8943, 89434L-1-6, 2014. [DOI:
10.1117/12.2040403, Photons Plus Ultrasound: Imaging and
Sensing 2014, SPIE BiOS.]
Subhajit Karmakar, Ratan K Saha and Madhusudan Roy,
Estimation of hematocrit using photoacoustic
technique, Proceedings of the DAE BRNS 21st National Laser
Symposium, 2013.
Eno Hysi, Ratan K Saha and Michael C Kolios,
Photoacoustic Assessment of Oxygen Saturation: Effect of
Red Blood Cell Aggregation, Proceedings of the SPIE, 8581, 85813T-1-7, 2013. [DOI:
10.1117/12.2004960, Photons Plus Ultrasound: Imaging and
Sensing 2013, SPIE BiOS.]
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy,
A Monte Carlo study on intraerythrocytic staging of
malaria parasite using photoacoustics, Proceedings of the 2012 IEEE International Ultrasonics
Symposium, 2328-2331, 2012. [DOI: 10.1109/ULTSYM.2012.0582]
Eno Hysi, Ratan K Saha and Michael C Kolios,
Simultaneous photoacoustic detection of red blood cell
aggregation and oxygen saturation, Proceedings of the 2012
IEEE International Ultrasonics Symposium, 1398-1401, 2012. [DOI: 10.1109/ULTSYM.2012.0349]
Eno Hysi, Ratan K Saha and Michael C Kolios,
On the potential of using photoacoustic spectroscopy for
monitoring red blood cell aggregation, Proceedings of the SPIE, 8222, 82220Q-1-10, 2012. [DOI:
10.1117/12.928257, Dynamics and Fluctuations in Biomedical
Photonics IX, SPIE BiOS.]
Eno Hysi, Ratan K Saha, Min Rui and Michael C Kolios,
Detection and characterization of red blood cell (RBC)
aggregation with photoacoustics, Proceedings of the SPIE, 8223, 82233E-1-10, 2012. [DOI:
10.1117/12.908685, Photons Plus Ultrasound: Imaging and
Sensing 2012, SPIE BiOS.]
Ratan K Saha , Subhajit Karmakar and Madhusudan Roy,
Photoacoustic Assessment of Blood Oxygen Saturation,
proceedings of the Second International Conference on
Trends in Optics and Photonics, A. Ghosh and D. Choudhury (Eds.), 426-431, 2011. [ISBN:
978-81-908188-1-0]
Eno Hysi, Ratan K Saha and Michael C Kolios,
Characterization of red blood cell aggregation with
photoacoustics: A theoretical and experimental study, Proceedings of the 2011 IEEE International Ultrasonics
Symposium, 1187-1190, 2011. [DOI: 10.1109/ULTSYM.2011.0292]
Ratan K Saha and Michael C Kolios,
A Monte Carlo study on the effects of erythrocyte
oxygenation on photoacoustic signals, Proceedings of the 2011 IEEE International Ultrasonics
Symposium, 2372-2375, 2011. [DOI: 10.1109/ULTSYM.2011.0589]
Ratan K Saha and Michael C Kolios,
A simulation study on ultrasound backscattering by cell
aggregates with poly-disperse cells, Proceedings of the 2010 IEEE International Ultrasonics
Symposium, 2307-2310, 2010. [DOI: 10.1109/ULTSYM.2010.0582]
Ratan K Saha and Guy Cloutier,
Ultrasound backscattering by three dimensional
distributions of aggregated red blood cells: A Monte Carlo
study, Proceedings of the 2008 IEEE International Ultrasonics
Symposium, 1971-1974, 2008. [DOI: 10.1109/ULTSYM.2008.0486]
Subhajit Karmakar, Kuntal Ghosh, Ratan K Saha, Sandip
Sarkar and Swapan K Sen,
A new design of low pass filter by Gaussian derivative
family, Intelligent Sensing and Information Processing, 177-182,
2005. [ISBN: 0-7803-9588-3]
Ratan K Saha, Subhajit Karmakar, Saibal Saha, Manas K
Roy, Sandip Sarkar and Swapan K Sen,
Application of phased array radar theory to ultrasonic
linear array medical imaging system, Proceedings of the International Radar Symposium India,
2003.
Pankaj Warbal and Ratan K Saha,
Estimation of optoacoustic spectra for normal and
pathological red blood cells using a modified Green’s
function approach,
Opto-Acoustic Methods and Applications in Biophotonics,
ECBO, Munich, Germany, 25 - 26 June 2023.
Ratan K Saha, Biomedical photoacoustics: modelling to
healthcare applications, 30-31 March, 2023, at PHASE 23, IIT
Gandhinagar. (Invited lecture)
Ratan K Saha, Photoacoustic tomography, National Symposium
on Acoustics (NSA 2021-22), Organized by Acoustical Society
of India and CSIR-National Physical Lab, 3-4 March, 2022, at
CSIR-NPL, New Delhi. (Invited lecture)
Ratan K Saha, Photoacoustic imaging: A hybrid imaging
modality for cell to tissue imaging, Analytical Techniques
to Study from Biomolecules to Tissues, Organized by Indian
Institute of Information Technology Allahabad, 02-04 July,
2021. (Invited lecture)
Pankaj Warbal and Ratan K Saha,
Removal of blurring induced by band-limited transducers
and broad laser pulse in photoacoustic tomography,
Opto-Acoustic Methods and Applications in Biophotonics,
ECBO, Munich, Germany, June 20-24, 2021.
Ratan K Saha, Introduction to biomedical photoacoustics,
VirtualOnline Meeting on National Symposium on Acoustics
(NSA 2020-21),Organized by Acoustical Society of India and
CSIR-NationalPhysical Lab, 22nd - 23rd March, 2021 at
CSIR-NPL, New Delhi.
Anuj Kaushik, Deepak Sonker and Ratan K Saha,
Use of angular distribution of differential
photoacoustic cross-section data for estimating source
size,
Opto-Acoustic Methods and Applications in Biophotonics,
ECBO, Munich, Germany, June 24-25, 2019.
Ratan K Saha, Basics of biomedical photoacoustics, One Week
Short Term Course on Signal and Image Processing for Medical
Applications, TEQIP III sponsored, VNIT Nagpur, India, Feb.
20-24, 2019.
Ratan K Saha, Introduction to ultrasonic imaging, One Week
ShortTerm Course on Signal and Image Processing for Medical
Applications, TEQIP III sponsored, VNIT Nagpur, India, Feb.
20-24, 2019.
Ratan K Saha, Photoacoustic signals, analysis and imaging,
Workshop on Machine Learning for Medical Image Analysis, IIT
Kharagpur, India, Sept. 17-21, 2018.
Ratan K Saha, Fundamentals of biomedical photoacoustics,
Workshop on Machine Learning for Medical Image Analysis, IIT
Kharagpur, India, Sept. 17-21, 2018.
Ratan K Saha, Green’s function approach for computation of
photoacoustic fields from different nonspherical
axisymmetric particles, 21st National Symposium on
Ultrasonics, SN Bose National Centre for Basic Sciences,
Kolkata, India, Nov. 8-10, 2016.
Ratan K Saha, Significance of shape in single-particle
photoacoustic emission, Indigo (India-EU) Policy Lab Linking
Program Workshop on Optical and Ultrasound Imaging, IISc
Bangalore, Bangalore, Sept. 22-23, 2016.
Ratan K Saha, Photoacoustic imaging and characterization of
biomedical samples, Two-day workshop on light-matter
interactions and applications (part of International Year of
Light, 2015), IISER Kolkata, Mohanpur, July 12-13, 2015.
Romain de Monchy, François Destrempes, Ratan K Saha,
EmilieFranceschini and Guy Cloutier, Effective medium model
for ultrasound backscattering from aggregating red blood
cells, International Congress on Ultrasonics, Metz, France,
May 11-14, 2015. (Presented by R De Monchy).
Subhajit Karmakar and Ratan K Saha, Photoacoustic image
simulation of ensemble of light absorbing cells using linear
array transducer, International Symposium on Ultrasonics,
Department of Physics, Rashtrasant Tukadoji Maharaj Nagpur
University, Nagpur, Jan. 22-24, 2015.
Romain De Monchy, François Destrempes, Ratan K Saha, Emilie
Franceschini and Guy Cloutier, Effective medium theory for
ultrasound blood characterization, 9th International
Conference on Ultrasonic Biomedical Microscanning,
Eddleston, Scotland, Sept. 28-Oct. 1, 2014. (Presented by R
De Monchy)
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy, On the
red blood cell concentration dependent photoacoustics, 19th
National Symposium on Ultrasonics, National Physical
Laboratory, New Delhi, India, Oct. 30-31, 2012. [Best paper
award]
Ali Traore-Dubuis, Emilie Franceschini, Ratan K Saha, Julien
Tripette, Boris Chayer and Guy Cloutier, Validation of the
effective medium theory combined with the structure factor
model (EMTSFM) for RBC aggregation characterization: A 3D
simulation study, 8th International Conference on Ultrasonic
Biomedical Microscanning, St-Paulin, Quebec, Canada, Sept.
24-27, 2012. (Presented by A Traore-Dubuis)
Eno Hysi, Ratan K Saha and Michael C Kolios, On the
potential of using photoacoustic spectroscopy for monitoring
red blood cell aggregation, Photons Plus Ultrasound: Imaging
and Sensing 2012,San Francisco, USA, Jan. 21-26, 2012 (SPIE
BiOS). (Presented by M C Kolios)
Ratan K Saha Subhajit Karmakar and Madhusudan Roy,
Photoacoustic Assessment of Blood Oxygen Saturation, Second
International Conference on Trends in Optics and Photonics,
Kolkata, India, Dec. 7-9, 2011.
Eno Hysi, Ratan K Saha and Michael C Kolios,
Characterization of red blood cell aggregation with
photoacoustics: A theoretical and experimental study, IEEE
International Ultrasonics Symposium, Orlando, USA, Oct.
18-21, 2011. (Presented by E Hysi)
Ratan K Saha, Eno Hysi and Michael C Kolios, A simulation
studyon photoacoustic signals from nonaggregating and
aggregating erythrocytes, 36th International Symposium on
Ultrasonic Imaging and Tissue Characterization, Arlington,
USA, June 13-15, 2011. (Abstract available at: Ultrasonic
Imaging, 33(4), 29-30, 2011.) (Presented by E Hysi)
Ratan K Saha and Michael C Kolios, A Monte Carlo study on
the effects of erythrocyte oxygenation on photoacoustic
signals, Ontario Biomedical Photoacoustics Workshop,
Sunnybrook Health Sciences Centre, Toronto, Canada, June 8,
2011.
Ratan K Saha and Michael C Kolios, A simulation study on
spatial-distribution-dependent ultrasound backscattering of
cell aggregates, 35th International Symposium on Ultrasonic
Imaging and Tissue Characterization, Arlington, USA, May
17-19, 2010. (Abstract available at: Ultrasonic Imaging, 31,
pp-270, 2009.)
Ratan K Saha, Manas K Roy, Subhajit Karmakar, Saibal Saha
and Swapan K Sen, Development of an experimental arrangement
for precise measurement of angular distribution of
ultrasound scattering, 14th National Symposium on
Ultrasonics, National Physical Laboratory, New Delhi, India,
Feb. 16–18, 2006.
Ratan K Saha, Swapan K Sen and Subodh K Sharma, Scattering
of plane acoustic waves by tissue inhomogeneities, Workshop
on Fluid Dynamics, Indian Association for the Cultivation of
Sciences, Kolkata, India, Dec. 16–19, 2005.
Ratan K Saha, Subhajit Karmakar, Manas K Roy, Kuntal Ghosh,
Sandip Sarkar and Swapan K Sen, Simulation of Spatial
Impulse Response for Some Theoretical Apodization Functions,
13th National Symposium on Ultrasonics, Bundelkhand, India,
Dec. 21–23, 2004.
Ratan K Saha, Swapan K Sen, Subodh K Sharma and Binayak
Dutta-Roy, Improved Born Approximations for Acoustic Wave
Back Scattering in Tissue Medium, 12th National Symposium on
Ultrasonics, Amritswar, India, Nov. 3–5, 2003.
Sudeep Mondal, Pankaj Warbal, Subhadip Paul and Ratan K
Saha, Experimental evaluation of sensor directivity using
isotropic total variation minimization in photoacoustic
tomography, accepted as poster presentation at the IEEE IUS
Montreal, Canada, September 3-8, 2023.
Sudeep Mondal, Subhadip Paul, Pankaj Warbal and Ratan K
Saha, RADU-Net: Eliminating the necessity of measurement of
precise scanning radius for image reconstruction in
photoacoustic tomography, accepted as poster presentation at
the IEEE IUS, Montreal, Canada, September 3-8, 2023.
Ujjal Mandal, Jagpreet Singh and Ratan K Saha, On the Born
series methods for solving inhomogeneous Helmholtz equation
in biomedical photoacoustics, presented as poster
presentation at ECBO, Munich, Germany, 25 - 26 June 2023.
Pankaj Warbal and Ratan K Saha, System matrix approach for
attenuation compensation in photoacoustic tomography, SPIE
Medical Imaging Conference, San Diego, USA, 19-23 February,
2023.
Avijit Paul, Pankaj Warbal, Amrita Mukherjee, Subhadip Paul
and Ratan K. Saha, Photoacoustic image reconstruction with
polynomial based interpolation algorithms, presented in CLEO
conference, Sapporo, Japan, 31st July to 5th August, 2022.
Pankaj Warbal and Ratan K Saha, Assessing role of sensor
directivity in the photoacoustic tomography, presented in
CLEO conference, Sapporo, Japan, 31st July to 5th August,
2022.
Anuj Kaushik and Ratan K Saha, A numerical solution of
phototacoustic wave equation for red blood cell by the Born
series methods, FiO+LS, Online, September 14-17, 2020.
Anuj Kaushik, Deepak Sonker and Ratan K Saha, Determining
the photoacoustic source size from frequency dependent
differential photoacoustic cross-section data, FiO+LS,
Washington DC, USA, September 15-19, 2019.
Pankaj Warbal, Manojit Pramanik and Ratan K Saha, A robust
modified delay-and-sum algorithm for photoacoustic
tomography imaging with apodized transducer, Opto-Acoustic
Methods and Applications in Biophotonics, ECBO, Munich,
Germany, June 24-25, 2019.
Eno Hysi, Michael J. Moore, Subhajit Karmakar, Ratan K Saha,
Eric Strohm and Michael C Kolios, Photoacoustic speckle:
Experimental and theoretical evidence, IEEE IUS 2017,
Washington, DC, Sept. 6-9, 2017. (Presented by E Hysi.)
Ratan K Saha, Muhannad N. Fadhel, Aamna Lawrence, Subhajit
Karmakar, Arunava Adhikari and Michael C Kolios, Rapid
computation of photoacoustic fields from normal and
pathological red blood cells using a Green’s function
method, Photons Plus Ultrasound: Imaging and Sensing 2017,
SPIE BiOS, San Francisco, USA, Jan. 28 - Feb. 2, 2017.
Divakar Badal, Subhajit Karmakar and Ratan K Saha,
Preliminary study on optoacoustic tomography using discrete
particle approach, Indigo (India-EU) Policy Lab Linking
Program Workshop on Optical and Ultrasound Imaging, IISc
Bangalore, Bangalore, Sept. 22-23, 2016. [Presented by D
Badal.]
Romain de Monchy, Francois Destrempes, Ratan K Saha, Guy
Cloutier and Emilie Franceschini, Coherent and incoherent
ultrasound backscatter from cells in aggregated
conformation, IEEE International Ultrasonics Symposium,
Tours, France, Sept. 18-21, 2016. [Presented by R de
Monchy.]
Subhajit Karmakar, Eno Hysi, Michael C Kolios and Ratan K
Saha, Realistic photoacoustic image simulations of
collections of solid spheres using linear array transducer,
Photons Plus Ultrasound: Imaging and Sensing 2015, SPIE
BiOS, San Francisco, USA, Feb. 7-12, 2015. (Presented by E
Hysi.)
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy, Probing
confined and unconfined hemoglobin molecules with
photoacoustics, Photons Plus Ultrasound: Imaging and Sensing
2014, SPIE BiOS, San Francisco, USA, Feb. 1-6, 2014.
Subhajit Karmakar, Ratan K Saha and Madhusudan Roy,
Estimation of hematocrit using photoacoustic technique, DAE
BRNS 21st National Laser Symposium, BARC, Mumbai, India,
Feb. 6-9, 2013.
Eno Hysi, Ratan K Saha and Michael C Kolios, Photoacoustic
Assessment of Oxygen Saturation: Effect of Red Blood Cell
Aggregation, Photons Plus Ultrasound: Imaging and Sensing
2013, SPIE BiOS, San Francisco, USA, Feb. 2-7, 2013.
(Presented by M C Kolios.)
Eno Hysi, Ratan K Saha and Michael C Kolios, Simultaneous
photoacoustic detection of red blood cell aggregation and
oxygen saturation, IEEE International Ultrasonics Symposium
Dresden, Germany, Oct. 7-10, 2012.
Ratan K Saha, Subhajit Karmakar and Madhusudan Roy, A Monte
Carlo study on intraerythrocytic staging of malaria parasite
using photoacoustics, IEEE International Ultrasonics
Symposium, Dresden, Germany, Oct. 7-10, 2012.
Eno Hysi, Ratan K Saha, Min Rui and Michael C Kolios,
Detection and characterization of red blood cell (RBC)
aggregation with photoacoustics, Photons Plus Ultrasound:
Imaging and Sensing 2012, SPIE BiOS, San Francisco, USA,
Jan. 21-26, 2012. (Presented by E Hysi.)
Eno Hysi, Ratan K Saha and Michael C Kolios, Photoacoustic
spectral analysis for detecting red blood cell aggregation,
Canadian Institutes of Health Research Symposium on Novel
Cancer Therapies and Innovations in Treatment Monitoring,
Toronto, Canada, Nov. 14-15, 2011. (Presented by E Hysi)
Ratan K Saha and Michael C Kolios, A Monte Carlo study on
the effects of erythrocyte oxygenation on photoacoustic
signals, IEEE International Ultrasonics Symposium, Orlando,
USA, Oct. 18-21, 2011. (Presented by M C Kolios)
Ratan K Saha and Michael C Kolios, A simulation study on
ultrasound backscattering by cell aggregates with
poly-disperse cells, IEEE International Ultrasonics
Symposium, San Diego, USA, Oct. 11-14, 2010.
Ratan K Saha and Guy Cloutier, Ultrasound backscattering by
three dimensional distributions of aggregated red blood
cells: A Monte Carlo study, IEEE International Ultrasonics
Symposium, Beijing, China, Nov. 2-5, 2008. (Presented by G
Cloutier)
Ratan K Saha and Guy Cloutier, Simulation of ultrasound
backscattering by three dimensional distributions of
aggregated red blood cells, 13th International Congress of
Biorheology and 6th International Conference on Clinical
Hemorheology, State College, Pennsylvania, USA, July 9-13,
2008. (Presented by G Cloutier.)
Swapan K Sen, Ratan K Saha, Subhajit Karmakar and Manas K
Roy, Measurement of Transmit Beam Profile and an Optimized
Methodology for Acoustic Beam Axis Determination, IEEE
Nuclear Science Symposium and Medical Imaging Conference,
Rome, Italy, Oct. 19–22, 2004.
Ratan K Saha, Subhajit Karmakar, Saibal Saha, Manas K Roy,
Sandip Sarkar and Swapan K Sen, Application of Phased Array
Radar Theory to Ultrasonic Linear Array Medical Imaging
System, International Radar Symposium India, Bangalore,
India, Dec. 2–5, 2003.
Advances in Tunable Lasers, Organized by Indian Laser
Association during DAE BRNS 21st National Laser Symposium,
BARC, Mumbai, India, Feb. 4-5, 2013. (Instructors: Dr. RC
Bapana and Dr. AK Ray, Laser and Plasma Technology Division,
BARC, India.)
Photoacoustic Imaging and Sensing, IEEE International
Ultrasonics Symposium, Dresden, Germany, Oct. 7-10,
2012.(Instructors: Stanislav Emelianov, University of Texas
at Austin, and Richard Bouchard, University of Texas MD
Anderson Cancer Center, USA.)
Photoacoustic Imaging and Sensing, IEEE International
Ultrasonics Symposium, San Diego, USA, Oct. 11-14,
2010.(Instructor: Stanislav Emelianov, University of Texas
at Austin, USA.)
Ultrasound for Cancer Therapy Symposium, Sunnybrook Health
Sciences Centre, Toronto, Canada, July 7, 2010.
Ontario Photoacoustics Workshop, Sunnybrook Health Science
Centre, Toronto, Canada, June 2, 2010.
The 2009 annual conference of the Canadian Acoustical
Association, Niagra-on-the-Lake, Canada, Oct. 14-16, 2009.
One-day Seminar on Trends in Medical Imaging and Image
Processing, Saha Institute of Nuclear Physics, Kolkata,
India, Nov. 29, 2002.
Biomedical photoacoustic research @ IIITA, Department of
Medical Physics and Biomedical Engineering, University
College London, London, UK, July 25, 2023.
Biomedical photoacoustic research @ IIITA, Department of
Medical Physics and Biomedical Engineering, University
College London, London, UK, July 14, 2023.
Highlights of photoacoustic research @ IIITA, Indian
Institute of Technology Gandhinagar, July 21, 2022.
Application of photoacoustic technique for malaria
detection, National Institute of Malaria Research, Delhi,
October 1, 2019.
Modelling of photoacoustic signals from single cell to many
cells, University of Bordeaux, Bordeaux, France, July 2,
2019.
Modelling of photoacoustic signals from blood under
different pathological conditions, LMA, Aix-Marseille
University, Marseille, France, June 27, 2019.
Imaging and characterization of biomedical samples with
photoacoustics, ISI Kolkata (on the Silver Jubilee of
Machine Intelligence Unit), March 21, 2018.
Forward and inverse problems in biomedical photoacoustics,
Riverside Research Institute, New York, USA, Jan. 27, 2017.
Photoacoustics: A new imaging and tissue characterization
modality, North Eastern Hill University, Shillong, April 25,
2014.
Studies on biomedical photoacoustics: Theory, experiment and
scope of future instrumentation, Indian Institute of
Science, Bangalore, Nov. 21, 2013.
Towards tissue characterization with light and sound, Indian
Institute of Technology Bhubaneswar, Bhubaneswar, Oct. 25,
2013.
On the phtoacoustic characterization of blood, Tata
Institute of Fundamental Research, Mumbai, India, Aug. 7,
2012.
Blood tissue characterization using photoacoustics, West
Bengal State University, Barasat, West Bengal, India, Nov.
14, 2011(invited).
Some studies on ultrasonic and photoacoustic tissue
characterizations, Bose Institute, Kolkata, India, Dec. 7,
2010.
Monte Carlo study on ultrasound backscattering by
three-dimensional distributions of red blood cells, Ryerson
University, Toronto, Canada, June 26, 2009.
Monte Carlo study on ultrasound backscattering by
three-dimensional distributions of red blood cells, Saha
Institute of Nuclear Physics, Kolkata, India, Jan. 13, 2009.
Monte Carlo study on ultrasound backscattering by
three-dimensional distributions of red blood cells, Division
of Medical Physics, Thomas Jefferson University,
Philadelphia, USA, Dec. 2, 2008.
Some studies on approximate methods in acoustic scattering
problems, Laboratory of Biorheology and Medical Ultrasonics,
University of Montreal Hospital Research Centre, Montreal,
Canada, Feb. 6, 2007.
Progress of 10th Five Year Plan Project (MEDIP), Saha
Institute of Nuclear Physics, Kolkata, India, April 28,
2005.
Dr. Vatsala Misra, Department of Pathology, Moti Lal Nehru
Medical College, Prayagraj, Uttar Pradesh, 211002, India.
Dr. Hari Shankar Patel, Laser Biomedical Applications
Division, Raja Ramanna Centre for Advanced Technology,
Indore, Madhya Pradesh, 452013, India.
Dr. Karla P. Mercado-Shekhar, Biological Engineering, Indian
Institute of Technology Gandhinagar, Palaj, Gandhinagar,
Gujarat, 382355, India.
Dr. Himanshu Shekhar, Electrical Engineering, Indian
Institute of Technology Gandhinagar, Palaj, Gandhinagar,
Gujarat, 382355, India.
Dr. Manojit Pramanik, School of Chemical and Biomedical
Engineering, Nanyang Technological University, 62 Nanyang
Drive, Singapore 637459, Singapore.
Dr. Subhajit Karmakar, University Science Instrumentation
Centre, The University of Burdwan, Golapbag, Burdwan, 713
104, India.
Dr. Phannendra K Yalavarthy, Department of Computational and
Data Sciences Indian Institute of Science Bangalore, 560
012, India.
Prof. Madhusudan Roy, Surface Physics and Material Science
Division, Saha Institute of Nuclear Physics, 1/AF
Bidhannagar, Kolkata 700 064, India.
Prof. Michael C Kolios, Department of Physics, Ryerson
University, 350 Victoria Street, Toronto, Ontario, M5B 2K3,
Canada.
Prof. Guy Cloutier, LBMU, CRCHUM, University of Montreal,
Pavilion J A de Seve (Room Y-1619), 2099 Alexandre de Seve,
Montreal, Quebec, H2L 2W5, Canada.