Group Leader

Nirmalya Ghosh, Ph. D.

Associate Professor,
Department of Physical Sciences,
Indian Institute of Science Education and Research (IISER), Kolkata (W.B), India

My research activity is mainly in the area of experimental optics and spectroscopy with special emphasis on biomedical optics and spectroscopy (biophotonics). Specifically:

  1. Investigate various optical spectroscopic approaches (Elastic scattering, Fluorescence, Raman) for probing biological systems and other complex systems. Evaluate the use of multimodal spectroscopy for early diagnosis of disease.
  2. Develop novel optical modalities (based on the principle of coherence gating, time gating and polarization gating) for imaging through turbid medium. Explore the use of these approaches for biomedical imaging.
  3. Basic theoretical and experimental studies on polarization (Mueller matrices, Stokes vectors, Jones matrices) and coherence characteristics of scattered light in random medium. Theoretical modeling (Monte Carlo simulations, radiative transport theory, diffusion approximation) of light propagation in random medium.
  4. Basic studies on near field optics and spectroscopy. This include studies on the enhancement of local optical fields in presence of nano scale metal structure (surface plasmon resonance), surface enhanced spectroscopy, morphology dependent resonance (whispering gallery modes) effects associated with near field Mie scattering from dielectric particles etc. Utilize the information obtained from these basic studies for ultra-high sensitive bio-sensing and possible diagnostic applications.

Personal Webpage, Email: nghosh@iiserkol.ac.in
View complete list of publications

Postdoctoral Fellows

Semanti Chakraborty, PhD

Jointly works with Dr. Ayan Banerjee and Dr. Nirmalya Ghosh. She did her PhD from Loughborough University, UK in Optical Coherence Tomography. Presently works on Low coherence Backscattering Interferometry.
Email: semantichakraborty@gmail.com,

Graduate Students

Ankit Kumar Singh, MS

Ankit currently pursuing his Integrated MS-PhD Dual Degree at IISER-KOLKATA as a CSIR-SRF. He has done his three years bachelor degree in Physics (Honours) from Banaras Hindu University (B.H.U). His research interests lies in Plasmonics and Weak Measurement.
Email: aks13ip027@iiserkol.ac.in

Athira sathyakumar, MS

Athira completed her MS by Research in Space Science from CESSI, IISER-K and joined as a research scholar at IISER-K since 2016. She is working on Polarimetry and its application in optical astronomy.
Email: abs16rs013@iiserkol.ac.in

Rajib Dey, M.Sc

Rajib completed his M.Sc. from Bilaspur University in 2014. Currently he is working as a project assistant(JRF) at IISER-K since november, 2014. He is working on Bio-photonics, Fluorescence Spectroscopy Mueller matirix, Fractal analysis, and Low coherence Backscattering Interferometry.
Email: rajib.jrf@iiserkol.ac.in

Mandira Pal, M. Sc.

Mandira Completed her M.Sc. from Jadavpur University. She joined IISER-K as DST-Inspired Fellow in 2012. At present she is a DST-Inspired SRF and doing research work on Weak measurements and other novel methods for amplifying the sub-wavelength optical effects.
Email: mp12rs059@iiserkol.ac.in,

Shubham Chandel, MS

Shubham completed his Int. M.Sc. in Photonics from CUSAT, Kerala, India. He joined BioNaP, IISER-K in 2014. His research interest lies in the field of Bio-Photonics, Nano-Photonics and Plasmonics. He is the recipient of prestigious Raman-Charpak Fellowship and SPIE Scholarship.
Email: sc14rs013@iiserkol.ac.in

Subir Kr. Ray, M. Sc.

Subir completed his M.Sc. in Physics from Banaras Hindu University. He joined IISER-K as UGC-Fellow in 2013. Currently he is UGC-SRF and working on Polarization controlled tuning of Plasmonic system and Spin Orbit interaction of light.
Email: skr13rs007@iiserkol.ac.in
Personal Webpage

Sudipta Saha, MS

Sudipta currently pursuing his Integrated MS-PhD Dual Degree at IISER-K. He has done his three years bachelor degree in Physics (Honours) from University Of Calcutta. His research interests are on Photonics,Fluorescence Spectroscopy, Polarimetry and Spin-Orbit Interaction of light.
Email: ss12ip020@iiserkol.ac.in

Undergraduate Students

Ajmal, BS-MS

Ajmal currently pursuing Integrated BS-MS Dual Degree program at the Department of Physical Sciences, IISER-K as a DST-INSPIRE Fellow. His research interests include experimental studies on light-matter interaction in Spectral domain and Spin-Orbit interaction of light in nano Plasmonic system.
Email: a13ms001@iiserkol.ac.in

Aneeth.K. Arun, BS-MS

Aneeth has completed his Integrated BS-MS Dual Degree program at the Department of Physical Sciences, IISER-K. Currently he is working as a project fellow in our lab. His research interests include Bio-Photonics,Polarimetry and Plasmonics.
Email: aneeth.k.arun@gmail.com ,

Angad Gupta, BS-MS

Angad currently pursuing Integrated BS-MS Dual Degree program at the Department of Physical Sciences, IISER-K. His research interests lies on Computational Spin Orbit Interaction in structured Plasmonics.
Email: ag13ms009@iiserkol.ac.in,

Antariksha Das, BS-MS

Antariksha currently pursuing Integrated BS-MS Dual Degree program at the Department of Physical Sciences, IISER-K as a DST-INSPIRE Fellow. His research interests include theoretical and experimental studies on Spin-Orbit interaction of light in nano optical systems and Weak measurements in optics.
Email: ad13ms055@iiserkol.ac.in

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Former PhD and Post-Docs

Jalpa Soni, PhD.

Jalpa Soni finished her PhD in April 2016 and joined with Dr. Giovanni Volpe Group. Soft Matters Lab, Bilkent University, Turkey Her current research topic is "Exploring active and passive Brownian motion of particles in presence of external fields."
Email: jalpaben.soni@bilkent.edu.tr

Nandan Kumar Das, PhD

Nandan finished his PhD in 2016 and joined Nanyang Technological University, Singapore. His current research topic is ".".
Email: nandankds@gmail.com
Personal Webpage

Former Students

Abhishek Kumar, MS

Abhishek has completed his Integrated Master in Physics from IISER Kolkata in 2016 and currently purusing his doctral studies at NTU, Singapore.
Email:
abhishek11059@gmail.com,

Akshay.E, BS-MS

Akshay.E has completed his Integrated Master in Physics from IISER Kolkata in 2017 and currently working on a research project at Oregon Health and Science University, Portland, USA. .
Email:
ae12ms035@iiserkol.ac.in,

Ankan Bag, MS

Ankan Bag has completed his Integrated Master in Physics from IISER Kolkata in 2014 and currently purusing his doctral studies at Max Plank Insitute for the Science of Light, Germany.
Email:
ankan.bag@gmail.com,

Arindam Nandi, MS

Arindam Nandi has completed his Integrated Master in Physics from IISER Kolkata in 2015 and currently purusing his doctral studies at Purdue University, USA.
Email:
arindamnandi160@gmail.com,

M Sri Bhavya, MS

M Sri Bhavya has completed his Integrated Master in Physics from IISER Kolkata in 2016 and currently doing research at University of Nebraska, USA.
Email:
bhavya11085@iiserkol.ac.in

Chitram Banerjee, MS

Chitram has completed his Integrated Master in Physics from IISER Kolkata in 2015 and currently purusing his doctral studies at Laboratoire Aime Cotton, Universite Paris-Sud, France.
Email:
chitrambanerjee87@gmail.com

Debanuj Chatterjee, BS-MS

Debanuj has completed his Integrated Master in Physics from IISER Kolkata in 2017 and currently purusing his doctral studies at Laboratoire Aime Cotton, Universite Paris-Sud, France.
Email:
dcphysicist@gmail.com,

Jatadhari Mishra, MS

Jatadhari has completed his Integrated Master in Physics from IISER Kolkata in 2016 and currently purusing his doctral studies on nonlinear optics at Stanford University, USA.
Email:
mrmish00@gmail.com

Sabyasachi M., MS

Sabyasachi has completed his MS by Research in Physical Sciences from IISER Kolkata in 2015 and currently holding a position as Research Scientist in a start up a company Rootalpha.
Email:
mukhopadhyaysabyasachi@gmail.com

Sayandip Dhara, MS

Sayandip has completed his Integrated Master in Physics from IISER Kolkata in 2016 and currently purusing his doctral studies at University of Central Florida, USA.
Email:
sayaniiser1@gmail.com,

Sumit Goswami, MS

He has completed his 5 years Integrated Master in Physics from IISER Kolkata in 2015 and currently purusing his doctral studies at University of Calgary.
Email:
sumitsgoswami@gmail.com,

Harsh Purwar, Ph.D.

Harsh has completed his Integrated Master in Physics from IISER Kolkata in 2012 and PhD in 2015 from the Université de Rouen, France. . At present, he is working as a postdoctoral researcher at Laboratoire de l'accelerateur lineaire, France.
Email:
purwar@lal.in2p3.fr
Personal Webpage

Harshit Lakhotia, MS

He has completed his 5 years Integrated Master in Physics from IISER Kolkata in 2014 and currently purusing his doctral studies at Max Plank Insitute for Quantum optics.
Email:
innovharshit@iiserkol.ac.in

Satish Kumar, MS

Satish has completed his integrated BS-MS in Physics in 2012 from IISER-Kolkata and is currently pursuing his doctoral studies at University of Texas, Arlington, USA.
Email:
satish7072007@gmail.com

Shampy Mansha, MS

Shampy Mansha has completed his integrated Master in Physics in 2013 from IISER-Kolkata and is currently pursuing his doctoral studies at Nanyang Technological University, Singapore.
Email: shampy4980@gmail.com

Subhasri Chatterjee, M. Sc.

Subhasri worked here as a project felow from 2012-2014. Presently works as a research scholar at City University London.
Email:
subhasrichatterjee@gmail.com