IISER Bhopal

Faculty /

Profile

K V Adarsh
Professor

Academic Details

  • Associate Professor (September 2015), Physics, Indian Institute of Science Education and Research, Bhopal, India.
  • Assistant Professor (June 2009 - August 2015), Physics, Indian Institute of Science Education and Research, Bhopal, India.
  • Post Doctoral Fellow (2008 - 2009), Department of Physics, Technion-Israel Institute of Technology, Israel.
  • Post Doctoral Fellow (2007, Feb- Dec), Institute for Physics, University of Rostock, Germany.
  • Visiting Research Scholar ( 2006, Jan - June), Department of Material Science and Engineering, Lehigh University, Bethlehem, USA
  • Ph.D (Experimental Condensed Matter Physics), Department of Physics , Indian Institute of Science, Bangalore - 560 012, India.

Research

  • Nonlinear Optics: Ultrafast effects in semiconductors, optical control of multi-photon absorption, Electro-optic effects, Generation and modulation of Terahertz radiation, Supercontinuum generation in photonic crystal fibers; Ensembles of interacting solitons; Modulation instability in optical fibers; Soliton lasers.
  • Condensed Matter Physics: Nano-structuring in chalcogen / chalcogenide and metal / chalcogenide multilayers; Quantum size effects and tunability of optical parameters in amorphous semiconductors.
  • The nonlinear optical properties of glasses have recently become the focus of growing scientific and technological interest. In particular, chalcogenide glasses have emerged as promising candidates due to their large optical nonlinearity and sub-picosecond response time. However, they are far from being inducted into a real time application, as they are highly sensitive to bandgap light. Moreover, magnitude of the light induced effects is much larger than any other cumulative effects like thermal nonlinearity. The prime focus of my research group at IISER Bhopal is to explore experimentally the underlying phenomena behind the ultrafast nonlinear optical response of chalcogenide glasses and learn how to control, tailor and enhance them.

# Authors Title Journals Year
1 Tuhin Kumar Maji
Vaibhav Kumar
Samir Kumar Pal
Kausik Majumdar
K. V. Adarsh
Debjani Karmakar
Intricate modulation of interlayer coupling at GO/MoSe2 interface: application in time-dependent optics and device transport Physical Review B 2019
2 P. Pradhan
Pritam Khan
J. R. Aswin
K. V. Adarsh
R. Naik
N. Das
A. K. Panda
Quantification of nonlinear absorption in ternary As-Sb-Se chalcogenide glasses Journal of Applied Physics 2019
3 Rajesh Kumar Yadav
J. Aneesh
Rituraj Sharma
M. Salvi
J. Jayabalan
Himanshu Jain
K. V. Adarsh
Giant Enhancement of Nonlinear Absorption in Graphene Oxide—Sb2Se3 Nanowire Heterostructure Journal of Applied Physics 2019
4 Rayan Chakraborty
Kyu Min Sim
Megha Shrivastava
K. V. Adarsh
Dae Sung Chung
Angshuman Nag
Colloidal Synthesis, Optical Properties, and Hole Transport Layer Applications of Cu2BaSnS4 (CBTS) Nanocrystals ACS Applied Energy Materials 2019
5 M. S. Arjunan
Anirban Mondal
Amlan Das
K. V. Adarsh
Anbarasu Manivannan
Multilevel accumulative switching processes in growth-dominated AgInSbTe phase change material Optics Letters 2019
6 Cchiranjeevi Maddi
J. R. Aswin
Andrew Scott
Zabeada Aslam
Elizabeth Willneff
K. V. Adarsh
Animesh Jha
Structural, Spectroscopic, and Excitonic Dynamics Characterization in Atomically Thin Yb3+-Doped MoS2, Fabricated by Femtosecond Pulsed Laser Deposition Advanced Optical Materials 2019
7 Xing Li
Qiang Gao
J. Aneesh
Hai-Sen Xu
Zhongxin Chen
Wei Tang
Cuibo Liu
Xiangyan Shi
K. V. Adarsh
Yixin Lu
Kian Ping Loh
Molecular Engineering of Bandgaps in Covalent Organic Frameworks Chemistry of Materials 2018
8 Wasim J. Mir
Rituraj Sharma
Vikash Kumar Ravi
J. Aneesh
Anirban Mondal
Mathew C. Beard
Angshuman Nag
K. V. Adarsh
Ultrafast Exciton Many-Body Interactions and Hot-Phonon Bottleneck in Colloidal Cesium Lead Halide Perovskite Nanocrystals Physical Review B 2018
9 Dipendranath Mandal
Rajesh Kumar Yadav
Anirban Mondal
Santu K. Bera
J. R. Aswin
Petr Nemec
Tomas Halenkovic
K. V. Adarsh
Intensity mediated change in the sign of ultrafast third-order nonlinear optical response in As2S2 thin films Optics Letters 2018
10 Pritam Khan
Rajesh Kumar Yadav
K. V. Adarsh
Ultrafast light-induced reversible softening of chalcogenide glass thin films above the rigidity percolation transition Journal of Applied Physics 2018
11 Rajesh Kumar Yadav
J. Aneesh
Rituraj Sharma
P. Abhiramnath
T. K. Maji
Ganesh Ji Omar
A. K. Mishra
Debjani Karmakar
K. V. Adarsh
Designing hybrids of graphene oxide- gold nanoparticles for nonlinear optical response Physical Review Applied 2018
12 Pritam Khan
Yinsheng Xu
William Leon
K. V. Adarsh
Dmitri Vezenov
Ivan Biaggio
Himanshu Jain
Kinetics of photo-dissolution within Ag/As2S3 heterostructure Journal of Non-Crystalline Solids 2018
13 Amiya Ranjan Barik
KV Adarsh
Ultrafast photoinduced anisotropy in GeSe 2 thin film Optics Letters 2017
14 Jaya Pal
Suman Manna
Anirban Mondal
Shyamashis Das
KV Adarsh
Angshuman Naf
Colloidal Synthesis and Photophysics of M3Sb2I9 (M=Cs and Rb) Nanocrystals: Lead-Free Perovskites Angewandte Chemie 2017
15 Rituraj Sharma
Aneesh J
Rajesh Kumar Yadav
Suresh Sanda
Amiya Ranjan Barik
Ashish Kumar Mishra
Tuhim Kumar Maji
Debjani Karmakar
KV Adarsh
Strong interlayer coupling mediated giant two-photon absorption in MoSe2/graphene oxide heterostructure: Quenching of exciton bands Physical Review B 2016
16 Rajesh Kumar Yadav
Rituraj Sharma
Aneesh J
Abhiramnath P
KV Adarsh
Saturable absorption in one-dimensional Sb2Se3 nanowires in visible to near infrared region Optics Letters 2016
17 Amit Kumar Rana
Aneesh J
Yogendra Kumar
Arjunan MS
KV Adarsh
Somaditya Sen
Parasharam M Shirage
Enhancement of two photon absorption with Ni doping in the dilute magnetic semiconductor ZnO crystalline nanorods Applied Physics Letters 2015
18 Pritam Khan
Rituraj Sharma
Uday Deshpande
KV ADarsh
First observation of the temperature-dependent light-induced response of Ge25As10Se65 thin films Optics Letters 2015
19 Rituraj Sharma
Deepak Kumar
Varadharajan Srinivasan
Himanshu Jain
KV Adarsh
Engineering the optical response of a-Se thin films by employing morphological disorder Optics Express 2015
20 Pritam Khan
Tarun Saxena
KV Adarsh
Tailoring between network rigidity and nanosecond transient absorption in a-GexAs35-xSe65 thin films Optics Letters 2015
21 Pritam Khan
Rajesh Kumar Yadav
Arinjoy Bhattacharya
Abin Joshy
Aneesh J
KV Adarsh
Tuning nanosecond transient absorption in a–Ge25As10Se65 thin films via background illumination Optics Letters 2015
22 Wasim J Mir
Abhishek Swarnka
Rituraj Sharma
Aditya Katti
KV Adarsh
Angshuman Nag
Origin of unusual excitonic absorption and emission from colloidal Ag2S nanocrystals: Ultrafast photophysics and solar cell The Journal of Physical Chemistry Letters 2015
23 Rituraj Sharma
Kiran Prasai
David A Drabold
KV Adarsh
Ultrafast defect dynamics: A new approach to all optical broadband switching employing amorphous selenium thin films AIP Advances 2015
24 Pritam Khan
Prodip Acharja
Abin Joshy
Arinjoy Bhattacharya
Deepak Kumar
KV Adarsh
Nanosecond light-induced transient absorption in As2S3: Self-trapped exciton recombination in amorphous chalcogenides Journal of Non-Crystalline Solids 2015
25 Rituraj Sharma
Aneesh J
Rajesh Kumar Yadav
Sam Eppen George
KV Adarsh
Ultrafast Saturable Absorption in a-As2S5/Au Heterostructures OSA Technical Digest (online) 2015
26 Pritam Khan
Amiya Ranjan Barik
EM Vinod
KS Sangunni
KV Adarsh
Observation of photobleaching and intensity dependent kinetics in Ge22As22Se56 thin films under sub-bandgap light illumination IOP Conf. Series: Materials Science and Engineering 2015
27 Pritam Khan
Tarun Saxena
Himanshu Jain
KV Adarsh
Nanosecond light induced, thermally tunable transient dual absorption bands in a-Ge5As30Se65 thin film Scientific Reports 2014
28 Pritam Khab
Himanshu Jain
KV Adarsh
Role of Ge:As ratio in controlling the light-induced response of a-GexAs35−xSe65 thin films Scientific Reports 2014
29 David A Drabold
Mukund Bapna
Amiya Ranjan Barik
KV Adarsh
Ultrafast light induced unusually broad transient absorption in the sub-bandgap region of GeSe2 thin film Scientific Reports 2014
30 S Binu
Pritam Khan
AR Barik
Rituraj Sharma
R Golovchak
Himanshu Jain
KV Adarsh
Photoinduced formation of Ag nanoparticles on the surface of As2S3/Ag thin bilayer Materials Research Express 2014
31 Pritam Khan
KV Adarsh
Composition dependent light induced crossover from photodarkening to photobleaching in GexAs35-xSe65 thin films AIP Conference Proceedings 2014
32 Rituraj Sharma
Anjali K Sajeev
Sam E George
KV Adarsh
Laser Assisted Single Step Method to Synthesize Ag Nanoparticles on Chalcogenide Surface OSA Technical Digest 2014
33 Mukund Bapna
AR Barik
KV Adarsh
Nanosecond pulse triggered absorption modulation in a-As50Se50 chalcogenide thin films Journal of Non-Crystalline Solids 2013
34 AR Barik
Ramakanta Naik
KV ADarsh
Unusual observation of fast photodarkening and slow photobleaching in a-GeSe 2 thin film Journal of Non-Crystalline Solids 2013
35 Mukund Bapna
Rituraj Sharma
AR Barik
Pritam Khan
Rakesh Ranjan Kumar
KV Adarsh
Light induced diffusion driven self assembly of Ag nanoparticles in a-Se/Ag bi-layer thin film with ultrafast optical response Applied Physics Letters 2013
36 Rakesh Ranjan Kumar
AR Barik
EM Vinod
Mukund Bapna
KS Sangunni
KV Adarsh
Crossover from photodarkening to photobleaching in a-Ge x Se 100-x thin films Authors Optics Letters 2013
37 KV Adarsh
T Shripathi
Uday Deshpande
Ramakanta Naik
Mukund Bapna
AR Barik
Intensity-dependent transient photodarkening in visible and far infrared absorption spectra of As 50 Se 50 thin film Materials Chemistry and Physics 2013
38 Rituraj Sharma
Pritam Khan
S Binu
KV Adarsh
Time evolution of photo-generated defect states in a-Se thin films AIP Conference Proceedings 2013
39 Pritam Khan
Rituraj Sharma
KV Adarsh
Nanosecond Light Induced Transient Absorption In a-Ge5As30Se65 Thin Films AIP Conference Proceedings 2013
40 Pritam Khan
AR Barik
EM Vinod
KS Sangunni
Himanshu Jain
KV Adarsh
Coexistence of fast photodarkening and slow photobleaching in Ge 19 As 21 Se 60 thin films Optics Express 2012
41 Ramakanta Naik
KV Adrash
R Ganesan
KS Sangunni
Giant photoinduced optical bleaching at room and liquid helium temperatures in Sb/As 2 S 3 multilayered films Optics Communications 2011
42 H Jain
KS Sangunni
D Zhao
R Ganesan
Ramakanta Naik
KV Adarsh
AR Barik
Kinetics of photodarkening at room and liquid He temperatures in a‐As45Se 55 thin film Physica Status Solidi (c) 2011
43 H Jain
D Zhao
G Yang
R Ganesan
Ramakanta Naik
KV Adarsh
AR Barik
K Shimakawa
Role of rigidity and temperature in the kinetics of photodarkening in Ge x As (45-x) Se 55 thin films Optics Express 2011
44 Ramakanta Naik
KV Adrash
AR Barik
Suchand Sandeep
Reji Philip
H Jain
Photoinduced transparency of effective three-photon absorption coefficient for femtosecond laser pulses in Ge16As29Se55 thin films Applied Physics Letters 2011

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