Laser and Photonics

Department of Physics, IIT Guwahati has a very active research group in the area of Laser and Photonics. The group is involved in both theoretical and experimental arena of optics. The theoretical optics research groups are primarily working in the area of quantum and nonlinear optics. The research topics include the followings: coherent control and electromagnetically induced transparency; optical imaging beyond diffraction limit; parity-time symmetric optics; quantum optomechanics; quantum information and entanglement; optical solitons; modulation instability; plasmon induced transparency and so on.

On the other hand, experimental optics groups are involved in research related to: Fourier Optics, Fiber Optics, Tera-Hertz Optics and Atom Optics.

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Followings are the primary research topics: programmable Diffractive Optics; confocal microscopy; interferometry; Tera-Hertz plasmonics and metamaterials; Laser cooling and trapping of atoms; Surface Plasmon Resonance based Sensors; Fiber Bragg Gratings and based Devices; Fiber Optic Sensor, Bio/Nano-Photonics and so on. Apart from the above, there is an active research group involved in research related to optical phenomena in thin films. The topics include the followings: Laser produced plasmas, laser ablation deposition of thin films, laser-based sensors and plasma diagnostics.

Optics research group, apart from its research, is also engaged in organization of various symposiums, conferences and schools in optics. To mention a few prominent ones are the followings: International conference on fiber optics and photonics-Photonics 10, SERC Preparatory School on Modern Optics, SERB School on Frontiers in Quantum optics and International conference on Recent trends in cold and ultra-cold matter.

Group Coordinator


Kanhaiya Pandey
Assistant Professor
0361-2583565
kanhaiyapandey [at] iitg.ac.in

Tarak Nath Dey
Professor

Alika Khare
Professor

Gagan Kumar
Associate Professor

Kanhaiya Pandey
Assistant Professor

Ashwini Kumar Sharma
Associate Professor

Dr. Ambaresh Sahoo

SASMITA BEHERA

SUNIL MOHAN

NAGENDRA KUMAR

KARUNA SINDHU MALIK

SUMIT GOSWAMI

DANGKA SHYLLA

NILAMONI DALOI

ABDELSALAM HASSAN MUHAMMAD ABDELAZIZ

OGARO ELIJAH NYAKANG'O

DIPTI KANIKA MAHATO

RAKESH SARKAR

KM DHRITI

SANKET DAS

SAMIT KUMAR HAZRA

AKANSHU CHAUHAN

ANGANA BHATTACHARYA

DEBABRATA PAUL

PARTHA DAS

RAJNANDAN CHOUDHURY DAS

Sampreet Kalita

NEDUP SHERPA

PRAKHAR PATHAK

ROSON NONGTHOMBAM

SUDARSHAN LAXMINARAYAN HEGDE

ANUPAM BHARADWAJ

BHAIROV KUMAR BHOWMIK

DR. KAMLESH MUKUNDRAO ALTI

DR. PURNANDA NANDI

DR. GAURAV SHUKLA

DR. ARPITA NATH

DR. ANEESH R

DR. ABU TALAT TAHER MOSTAKO

DR. MANIRUPA SAHA

DR. ABHIJIT DAS

DR. POULAMI GHOSH

DR. PARVENDRA KUMAR

DR. PATHI MUNENDHAR

DR. INDRAJEET KUMAR

DR. ONKAR NATH VERMA

DR. MD. GAFFAR

DR. RAJITHA KV

DR. PARTHA PRATIM DEY

DR. SAMIT KUMAR GUPTA

DR. SANDEEP SHARMA

DR. GYAN PRAKASH BHARTI

DR. KHWAIRAKPAM S SINGH

DR. RAHUL KESARWANI

DR. PRAHLAD KUMAR BARUAH

DR. KAUSHIK PAUL

DR. BIJITA SARMA

DR. ESHITA MAL

DR. SANTANU KONWAR

DR. BISWAJIT PATHAK

DR. KOIJAM MONIKA DEVI

DR. GOBINDA PRADHAN

DR. NAWAZ SARIF MALLICK

DR. MAIDUL ISLAM

DR. SUBHADEEP CHAKRABORTY

DR. SATYA SIDDHARTHA GOUTAM BUDDHA

DR. RANJAN KALITA

DR. JYOTI PRASAD DEKA

DR. S JAGAN M RAO

Journals

  • Santanu Konwar and Bosanta R. Boruah"Estimation of inter-modal cross talk in a modal wavefront sensor ", OSA Continuum vol.1, no.1, pp.78-91 , [2018 ]

  • R. Kalita, S.S. Goutam Buddha and Bosanta R. Boruah"A laser scanning microscope executing intra frame polarization switching of the illumination beam ", Review of Scientific Instruments vol.89, no.9, pp.093705 , [2018 ]

  • Biswajit Pathak and Bosanta R. Boruah"A zonal wavefront sensor with multiple detector planes", Journal of Optics (IOP) vol.20, no.3, pp.35604, [2018]

  • Santanu Konwar, and Bosanta R. Boruah"Current induced fluctuations in the orientation of the beam diffracted by a liquid crystal spatial light modulator", Review of Scientific Instruments vol.88, no.6, pp.66104, [2017]

  • Biswajit Pathak and Bosanta R. Boruah"Improvement in Error Propagation in the Shack-Hartmann type Zonal Wavefront Sensors", Journal of the Optical Society of America A vol.34, no.12, pp.2194, [2017]

  • Somnath Naskar, Subrata Saha, Tarak N. Dey and Bimalendu Deb "Electromagnetically induced transparency in two-colour ultra cold photoassociation ", Journal of Physics B: Atomic, Molecular and Optical Physics vol.50, no.12, pp.125003-125010, [2017]

  • Sandeep Sharma and Tarak N. Dey "Phase induced transparency mediated structured beam generation in a closed-loop tripod configuration ", Phys. Rev. A vol.96, no., pp.33811, [2017]

  • Nawaz Sarif Mallick, Tarak N. Dey and Kanhaiya Pandey "Microwave assisted transparency in a M-system", Journal of Physics B: Atomic, Molecular and Optical Physics vol.50, no.19, pp.195502-195507, [2017]

  • Sandeep Sharma and Tarak N. Dey "Kerr-field induced tunable optical atomic waveguide ", Phys. Rev. A vol.96, no., pp.53831, [2017]

  • Sandeep Sharma and Tarak N. Dey "Kerr-field induced tunable optical atomic waveguide ", Phys. Rev. A vol.96, no., pp.53831, [2017]

  • Ishani Chakrabartty, Prahlad Kumar Baruah, Aditya N. Panda, Alika Khare and Latha Rangan"Hybrid formulation of Cu nanoparticles and Labdane Diterpene from Alpinianigra: A vibrational spectroscopic study ", J. of Appl Spectroscopy vol.85, no.5, pp.983-990, [2018]

  • Pankaj Singh, Eshita Mal, Alika Khare and Sukanya Sharma"A study of archaeological pottery of Northeast India using laser induced breakdown spectroscopy ", J. Cultural Heritage vol.33, no.5 , pp.71-82, [2018 ]

  • Prahlad K. Baruah, Anuma Singh, Latha Rangan, Ashwini K. Sharma and Alika Khare"Optimization of copper nanoparticles synthesized by pulsed laser ablation in distilled water as a viable SERS substrate for karanjin ", Mat. chemistry and Physics vol.220, no., pp.111-117, [2018 ]

  • Arpita Nath and Alika Khare"Functional Activity of TiO2 Nanocolloids Generated from Diverging High Power Laser Beams ", Radiation Effects and Defects in Solids vol.173, no.11-12, pp.915-920, [2018 ]

  • Prahlad K Baruah, A K Sharma and Alika Khare"Effective control of particle size, surface plasmon resonance and stoichiometry of Cu@CuxO nanoparticles synthesized by laser ablation of Cu in distilled water ", Optics and Laser Technology vol.108, no., pp.574-582, [2018 ]

  • S. Sunderlal Singh, P. K. Baruah, Alika Khare and S. N. Joshi"Incubation studies and the threshold for surface damage and cavity formation in the processing of polycarbonate by Nd:YAG laser ", Optics and Laser Technology vol.108, no. , pp.592-601, [2018 ]

  • Partha P. Dey, Rahul Kesarwani and Alika Khare"Efficacy of Raman mapping over ellipsometric spectroscopy and XRD for characterization of structurally heterogeneous PLD nc-Si thin films ", Optical Materials vol.84, no. , pp.221-226 , [2018 ]

  • Gyan Prakash Bharti, Partha Pratim Dey and Alika Khare"Pulsed laser deposited Zn1-xTixO (0.000≤x≤0.050) thin films for tunable refractive index and nonlinear optical applications ", Mat Chem and Physics vol.216, no. , pp.206-212 , [2018 ]

  • Rahul Kesarwani and Alika Khare"Surface plasmon resonance and nonlinear optical behavior of pulsed laser deposited semitransparent Nano structured Copper thin films ", Applied Phys B vol.124, no. 6 , pp.116 , [2018 ]

  • Rasmi Ranjan Behera, Mamilla Ravi Sankar, Prahlad Kumar Baruah, Ashwini Kumar Sharma and Alika Khare"Experimental investigations of nanosecond-pulsed Nd:YAG laser beam micromachining on 304 stainless steel ", Journal of Micromanufacturing vol.1, no.1 , pp.62-75 , [2018 ]

  • Gyan Prakash Bharti and Alika Khare"Single and multiphoton induced photoluminescence in pulsed laser deposited Zn1-xAlxO (0≤x≤0.10) thin films ", J. of luminescence vol.197, no. , pp.135-141, [2018 ]

  • Sanasam Sunderlal Singh, Prahlad Kr. Baruah, Alika Khare and Shrikrishna N. Joshi"Effect of laser beam conditioning on fabrication of clean micro-channel on stainless steel 316L using second harmonic of Q-switched Nd:YAG laser", Optics and Laser Tech. vol.99, no. , pp.107-117, [2018]

  • Arpita Nath, Pooja Sharma and Alika Khare"Laser-induced metastable phases in liquids", Laser Physics Letter vol.15, no. , pp.26001, [2018]

  • Partha P. Dey and Alika Khare"Stoichiometric dependent optical limiting in PLD SiOx thin films", Advanced Mat. letters vol.8, no.4, pp.331-335, [2017]

  • Partha P. Dey and Alika Khare"Nonlinear optical and optical limiting response of PLD nc-Si thin films", Journal of Materials Chemistry C vol.5, no., pp.12211-12220, [2017]

  • Kh. Shantakumar Singh, Alika Khare and A. K. Sharma"Fabrication of Photoluminescent nc-Si:SiO2 Thin Films prepared by PLD", Laser and Particle Beams vol.35, no.2, pp.352-361 , [2017]

  • Prahlad K Baruah, Anuma Singh, Iffat Jahan, Latha Rangan, Aditya N. Panda, A. K. Sharma and Alika Khare"Surface-enhanced Raman scattering from copper nanoparticles treated furanoflavonoidkaranjin", Advanced Materials Letters vol.8, no.10, pp.971-976, [2017]

  • Prahlad K. Baruah, A. K. Sharma and Alika Khare"Dependence of the Size of Copper Nanoparticles on Laser Energy Synthesized by Pulsed Laser Ablation in Liquid", Advanced Materials Proceeding vol.2, no.4, pp.264-268, [2017]

  • Satchi Kumari, Alika Khare, Reema Gupta, Monika Tomar and Vinay Gupta"Fabry-perot modes enhanced pump-probe coupling in gold micro-disk patterned ruby thin film", Optical Materials vol.72, no.- , pp.375-379, [2017]

  • Partha P. Dey and Alika Khare"Stoichiometry-dependent linear and nonlinear optical properties of PLD SiOx thin films", Journal of Alloys and Compound vol.706, no., pp.370-376, [2017]

  • S.J.M. Rao, YK Srivastava, G. Kumar and D.R. Chowdhury"Modulating Fundamental Resonance in Capacitive Coupled Assymetric Terahertz Metamaterials", Scientific Reports vol.8, no.1, pp. 16773-1-16773-8, [2018]

  • S.J.M. Rao, G. Kumar, A.K. Azad and D.R. Chowdhury"Ultrafast Relaxation of Charge Carriers Induced Switching in Terahertz Metamaterials", Journal of Infrared, Millimeter and Terahertz Waves vol.39, no.12 , pp.1211-1220, [2018 ]

  • Koijam Monika Devi, Dibakar R. Chowdhury, Gagan Kumar and Amarendra K. Sarma"Dual-band electromagnetically induced transparency effect in a concentrically coupled terahertz metamaterial ", Journal of Applied Physics vol.124, no. , pp.063106-1-7, [2018 ]

  • Nipon Deka, Maidul Islam, Prashant K. Sarswat and Gagan Kumar"Enhancing solar cell efficiency with plasmonic behavior of double metal nanoparticle system Author links open overlay panel", Vacuum vol.152, no. , pp.285, [2018]

  • Koijam Monika Devi, M. Islam, Dibakar Roy Chowdhury, Amarendra K. Sarma and Gagan Kumar"Plasmon induced transparency in graphene based terahertz metamaterials", Europhysics Letters vol.120, no.2, pp.27005(p1)-27005(p6), [2018]

  • S. Jagan Mohan Rao, Deepak Kumar, Gagan Kumar and Dibakar Roy Chowdhury"Modulating the near field coupling through resonator displacement in planar terahertz metamaterials", Journal of Infrared, Millimeter and Terahertz Waves vol.38, no.1, pp.124-134, [2017]

  • Maidul Islam, Dibakar Roy Chowdhury, Amir Ahmad and Gagan Kumar"Planar plasmonic waveguide based terahertz sensor", Journal of Lightwave Technology vol.35, no. , pp.5215, [2017]

  • Maidul Islam, Dibakar Roy Chowdhury, Amir Ahmad and Gagan Kumar"Terahertz guided mode properties in an internally corrugated plasmonic waveguide", Journal of Applied Physics vol.122, no. , pp.53105, [2017]

  • Maidul Islam, S Jagan Mohan Rao, Gagan Kumar, Bishnu P Pal and Dibakar Roy Chowdhury"Role of Resonance modes on Terahertz Metamaterials based thin film sensors", Scientific Reports vol.7, no. , pp.7355, [2017]

  • Prashant K. Sarswat, Nipon Deka, S. Jagan Mohan Rao, Michael L. Free and Gagan Kumar"Surface Texture-Induced Enhancement of Optical and Photoelectrochemical Activity of Cu2ZnSnS4 Photocathodes", Journal of Electronics Materials vol.46, no.8, pp.5308-5318, [2017]

  • Koijam Monika Devi, Amarendra K. Sarma, Dibakar Roy Chowdhury and Gagan Kumar"Plasmon induced transparency through alternately coupled resonators in terahertz metamaterial", Optics Express vol.25, no.9, pp.10484-10493, [2017]

  • D Shylla, EO Nyakang’o and K. Pandey"Highly sensitive atomic based MW interferometry", Scientific Reports vol.8, no.1, pp.8692, [2018 ]

  • Nawaz Sarif Mallick, Tarak N. Dey and Kanhaiya Pandey "Microwave assisted transparency in a M-system", Journal of Physics B: Atomic, Molecular and Optical Physics vol.50, no.19, pp.195502-195507, [2017]

  • Bijita Sarma and Amarendra K. Sarma"Tunable phonon blockade in weakly nonlinear coupled mechanical resonators via Coulomb interaction ", Scientific Reports [Nature publishing group] vol.8, no., pp.14583 , [2018 ]

  • Bijita Sarma and Amarendra K. Sarma"Unconventional Photon blockade in three-mode optomechanics ", Physical Review A vol.98, no. , pp.013826 , [2018 ]

  • Koijam Monika Devi, Dibakar R. Chowdhury, Gagan Kumar and Amarendra K. Sarma"Dual-band electromagnetically induced transparency effect in a concentrically coupled terahertz metamaterial ", Journal of Applied Physics vol.124, no. , pp.063106-1-7, [2018 ]

  • Koushik Paul and Amarendra K. Sarma"Transitionless quantum driving based wireless power transfer", Scientific Reports vol.8, no., pp.4134, [2018]

  • Subhadeep Chakraborty and Amarendra K. Sarma"Entanglement dynamics of two coupled mechanical oscillators in modulated optomechanics", Physical Review A vol.97, no. , pp.22336, [2018]

  • Bijita Sarma and Amarendra K. Sarma"Single-photon blockade in optomechanical photonic crystal cavity with third-order nonlinearity", Journal of Physics B: Atomic, Molecular and Optical Physics vol.51, no. , pp.75505, [2018]

  • Jyoti Prasad Deka and Amarendra K. Sarma"Highly amplified light transmission in parity-time symmetric multilayered structure", Applied Optics vol.57, no.5, pp.1119-1126, [2018]

  • Samit Kumar Gupta and Amarendra K. Sarma"Optical parametric amplifications in parity-time symmetric negative index materials", Journal of Optics vol.47, no.1, pp.115-120, [2018]

  • Koijam Monika Devi, M. Islam, Dibakar Roy Chowdhury, Amarendra K. Sarma and Gagan Kumar"Plasmon induced transparency in graphene based terahertz metamaterials", Europhysics Letters vol.120, no.2, pp.27005(p1)-27005(p6), [2018]

  • Jyoti Prasad Deka, Samit Kumar Gupta and Amarendra K. Sarma"Controlling the dynamical behaviour of fiber ring resonators with balanced loss and gain", Nonlinear Dynamics vol.87, no. , pp.1121, [2017]

  • Bijita Sarma and Amarendra K. Sarma"Quantum-interference-assisted photon blockade in a cavity via parametric interactions", Physical Review A vol.96, no. , pp.53827, [2017]

  • Koijam Monika Devi, Amarendra K. Sarma, Dibakar Roy Chowdhury and Gagan Kumar"Plasmon induced transparency through alternately coupled resonators in terahertz metamaterial", Optics Express vol.25, no.9, pp.10484-10493, [2017]

  • Subhadeep Chakraborty and Amarendra K. Sarma"Enhancing quantum correlation and entanglement in an optomechanical system via cross-Kerr nonlinearity", Journal of Optical Society of America B vol.34, no.7, pp.1503-1510 , [2017]

  • Prahlad K. Baruah, Anuma Singh, Latha Rangan, Ashwini K. Sharma and Alika Khare"Optimization of copper nanoparticles synthesized by pulsed laser ablation in distilled water as a viable SERS substrate for karanjin ", Mat. chemistry and Physics vol.220, no., pp.111-117, [2018 ]

  • Prahlad K Baruah, A K Sharma and Alika Khare"Effective control of particle size, surface plasmon resonance and stoichiometry of Cu@CuxO nanoparticles synthesized by laser ablation of Cu in distilled water ", Optics and Laser Technology vol.108, no., pp.574-582, [2018 ]

  • Rasmi Ranjan Behera, Mamilla Ravi Sankar, Prahlad Kumar Baruah, Ashwini Kumar Sharma and Alika Khare"Experimental investigations of nanosecond-pulsed Nd:YAG laser beam micromachining on 304 stainless steel ", Journal of Micromanufacturing vol.1, no.1 , pp.62-75 , [2018 ]

  • G. Pradhan and A. K. Sharma"Anomalous Raman and photoluminescence blue shift in mono- and a few layered pulsed laser deposited MoS2 thin films ", Materials Research Bulletin vol.102, no. , pp.406-411, [2018 ]

  • Poulami Ghosh and A. K. Sharma"Highly c-axis oriented growth and optical characterization of ZnO pore-like structures surrounded by craters via pulsed laser deposition ", Silicon vol.10, no.2, pp.645-650, [2018]

  • Kh. Shantakumar Singh and A. K. Sharma "Time integrated optical emission studies on laser-produced copper plasma in the presence of magnetic field in air ambient at atmospheric pressure", Appl. Phys. A vol.123, no. , pp.325, [2017]

  • Kh. Shantakumar Singh and A. K. Sharma " Melt ejection from copper target in air in the presence of magnetic field using nanosecond pulsed laser ablation", J. Vac. Sci. Technol. A vol.35, no. , pp.31305, [2017]

  • Poulami Ghosh and A. K. Sharma"Two-photon induced photoluminescence and lasing in pulsed-laser deposited ZnO nanostructures pumped by continuous wave He-Ne laser", Opt. Mater. vol.66, no. , pp.651, [2017]

  • Kh. Shantakumar Singh, Alika Khare and A. K. Sharma"Fabrication of Photoluminescent nc-Si:SiO2 Thin Films prepared by PLD", Laser and Particle Beams vol.35, no.2, pp.352-361 , [2017]

  • Prahlad K Baruah, Anuma Singh, Iffat Jahan, Latha Rangan, Aditya N. Panda, A. K. Sharma and Alika Khare"Surface-enhanced Raman scattering from copper nanoparticles treated furanoflavonoidkaranjin", Advanced Materials Letters vol.8, no.10, pp.971-976, [2017]

  • Prahlad K. Baruah, A. K. Sharma and Alika Khare"Dependence of the Size of Copper Nanoparticles on Laser Energy Synthesized by Pulsed Laser Ablation in Liquid", Advanced Materials Proceeding vol.2, no.4, pp.264-268, [2017]

  • Poulami Ghosh and A. K. Sharma"On-axis and off-axis growth of zinc oxide nanostructures via pulsed laser deposition", Phys. Stat. Solidi A vol.214, no.5, pp.1600755-1600761, [2017]

Conferences

Text book/Book chapters