Photoacoustic and Photothermal Spectroscopy

Surya N. Thakur is a retired Professor of Physics at Banaras Hindu University, India. He has taught courses in Physical Optics, Atomic Spectroscopy, Electronic & Vibrational Spectroscopy of Molecules, Spectro-Chemical Analysis, Lasers & Nonlinear Spectroscopy, Molecular Vibrations & Nonradiative Transitions and Experimental Techniques of Supersonic Molecular Beam Spectroscopy, Photoacoustic & Photothermal Spectroscopy, Optogalvanic Spectroscopy, and Raman Spectroscopy. He received his PhD in Experimental Spectroscopy from Banaras Hindu University and carried out postdoctoral work at Reading University, UK and SUNY Binghamton, USA. His interests are nonlinear spectroscopy, potential surfaces and nonradiative transitions in large molecules. He has held 1851 Exhibition Fellowship of the Royal Commission (London) and the Career Award of the University Grants Commission (New Delhi, India). He was President of the Physics Section of Indian National Science Congress in 1991 and is a Fellow of the Laser and Spectroscopy Society of India. He has over 100 research publications. Dr. Virendra N Rai obtained his PhD in Physics from the Banaras Hindu University in 1983. He has specialization in Laser Produced Plasma, Plasma Diagnostics, Magnetic Confinement of Plasma, Laser Spectroscopy, Material Characterization, and Radiation effect on Material. Dr. Rai is an adjunct Professor (Hon.), Devi Ahilya University, Indore, since April 2018. Prior to this he was a scientific officer in Indus Synchrotron Utilization Division, Raja Ramanna Centre for Advanced Technology, Indore, where he also worked as a scientific officer in Laser Plasma Division. He has guided 4 M. Tech students and 5 PhD students. He is Life Member of Indian Laser Association (ILA), Plasma Science Society of India (PSSI), Laser and Spectroscopy Society of India (LASSI), Indian Society for Radiation Physics (ISRP). He has over 150 research publications and he has been a reviewer of a dozen international journals. Dr. Singh received his M.Sc. and PhD from Banaras Hindu University, India. His field of specialization is Laser Spectroscopy, Optical Fiber Sensors, Explosive detection, Molecular Dynamics, Laser Diagnostics for Combustion, Laser Ultrasonic and Hazardous Waste Management. Dr. Singh is currently working on laser-based advanced optical diagnostics such as Laser Induced Breakdown Spectroscopy (LIBS) for measuring the composition of the Plutonium Oxide residue produced during weapons-grade Plutonium processing. He has developed LIBS for measuring the concentration of toxic metals in the off-gases and in melt glass. Dr. Singh has worked in laser photo fragmentation laser induced fluorescence (PF-LIF) to measure the concentration of explosives. Dr. Singh has also developed Non-linear laser diagnostic techniques such as Coherent Anti-Stokes Raman Spectroscopy for high temperature, high luminescence and turbulent combustion flows. He has published 165 papers in International Journals, 176 presentations and 8 patents. Dr. Singh is Fellow of OSA and LASSI.

I. Basic physics and instrumentation
1. Photoacoustic and photothermal spectroscopy: Fundamentals and recent advances
2. Physics and instrumentation for photoacoustic spectroscopy of solids
3. Physics and techniques of photoacoustic spectroscopy of liquids
4. Electret microphone for photoacoustic spectrometer and a simple power meter
5. Design, characterization and applications of photoacoustic cells
6. Photoacoustic instrumentation for life sciences
7. Ultrafast Laser Induced Photothermal Spectroscopy
8. Thermo-optic techniques: A tool for interdisciplinary studies
9. Photothermal effects in optical materials
10. Photopyroelectric spectroscopy: a direct photothermal technique to evaluate thermal properties of condensed matter

II. PAS and PTS applications
11. Photothermal studies in semiconductor materials
12. Photoacoustic spectroscopy of some layered systems and Rare-Earth ions
13. Photoacoustic studies on neutron irradiated RE-oxide powder and ?- irritated Nd-doped glasses
14. A comparative Investigation of polymers exposed to neutrons, protons and ?-rays using optical and photoacoustic techniques
15. Photoacoustic and optical spectroscopy of dye-coated plasmonic thin films of silver and gold
16. Photoacoustic studies on organic dye solutions
17. Photoacoustic spectroscopy of liquid samples and polluted water
18. Photoacoustic spectroscopy of gases and harmful vapours
19. Thermal lensing spectroscopy of hydrocarbon molecules
20. Photoacoustic spectroscopy of diatomic and polyatomic molecules
21. Laser photoacoustic spectroscopy of explosives and drugs
22. Laser Photoacoustic and Photothermal Spectroscopy for Homeland Security and Defense
23. Photoacoustic Spectroscopy: A novel optical characterization technique in Agricultural science
24. Photoacoustic spectroscopy of foodstuff
25. Application of modulated optical excitation in the investigation and cure of diseases
26. Applications of optical and photothermal excitations in cervical and breast cancers
27. Applications of photoacoustic spectroscopy in gastroenterology
28. A Comparative account of PAS and LIBS for compositional studies of gallbladder stones
29. Photoacoustic imaging of the mouse brain to get insights into the human brain
30. Photoacoustic Tomography and its Applications