Bhavtosh Bansal

Associate Professor
Dept: Physical Sciences (DPS)
E-mail: bhavtosh [at] iiserkol.ac.in

All Publications:

  1. Kundu, Satyaki; Bar, Tapas; Nayak, Rajesh Kumble and Bansal, Bhavtosh. 2020."Critical Slowing Down at the Abrupt Mott Transition: When the First-Order Phase Transition Becomes Zeroth Order and Looks Like Second Order." Physical Review Letters, 124, 095703
  2. Roy, Basabendra; Mukhuti, Kingshuk and Bansal, Bhavtosh. 2019."Experimental determination of the bare energy gap of GaAs without the zero-point renormalization." Journal of Physics: Condensed Matter, 32, 10LT01
  3. Mukhuti, Kingshuk; Adusumalli, Venkata N. K. B.; Mahalingam, Venkataramanan and Bansal, Bhavtosh. 2019."Classification of Transitions in Upconversion Luminescence of Lanthanides by Two-Dimensional Correlation Analysis." The Journal of Physical Chemistry A, 123, 2457-2461
  4. Mondal, Richarj; Roy, Basabendra; Pal, Bipul and Bansal, Bhavtosh. 2018."How pump–probe differential reflectivity at negative delay yields the perturbed-free-induction-decay: theory of the experiment and its verification." Journal of Physics: Condensed Matter, 30, 505902
  5. Bar, Tapas; Choudhary, Sujeet Kumar; Ashraf, Md. Arsalan; Sujith, K. S.; Puri, Sanjay; Raj, Satyabrata and Bansal, Bhavtosh. 2018."Kinetic Spinodal Instabilities in the Mott Transition in V2O3: Evidence from Hysteresis Scaling and Dissipative Phase Ordering." Physical Review Letters, 121, 045701
  6. Bhuyan, Sumi; Mondal, Richarj; Pal, Bipul and Bansal, Bhavtosh. 2018."Distinguishing quantum dot-like localized states from quantum well-like extended states across the exciton emission line in a quantum well." Journal of Physics: Condensed Matter, 30, 105402
  7. Bhattacharya, Rupak; Mondal, Richarj; Khatua, Pradip; Rudra, Alok; Kapon, Eli; Malzer, Stefan; Doehler, Gottfried; Pal, Bipul and Bansal, Bhavtosh. 2015."Measurements of the Electric Field of Zero-Point Optical Phonons in GaAs Quantum Wells Support the Urbach Rule for Zero-Temperature Lifetime Broadening." Physical Review Letters, 114, 047402
  8. Bhattacharya, Rupak; Pal, Bipul and Bansal, Bhavtosh. 2014."Anti-Stokes luminescence in the light of second order perturbation theory." Applied Physics Letters, 105, 191102
  9. Khatua, Pradip; Bansal, Bhavtosh and Shahar, Dan. 2014."Khatua, Bansal, and Shahar Reply." Physical Review Letters, 113, 158902
  10. Ambast, Deepak K. S.; Mondal, Richarj; Pati, Palas Baran; Zade, Sanjio S.; Bansal, Bhavtosh and Pal, Bipul. 2014."Anomalous effects of ultradilute impurities on heat diffusion in liquids." Optics Communication, 334, 184
  11. Bhuyan, Sumi; Das, Sanat K.; Dhar, Sunanda; Pal, Bipul and Bansal, Bhavtosh. 2014."Optical density of states in ultradilute GaAsN alloy: Coexistence of free excitons and impurity band of localized and delocalized states ." Journal of Applied Physics, 116, 023103
  12. Khatua, Pradip; Bansal, Bhavtosh and Shahar, Dan. 2014."Single-Slit Electron Diffraction with Aharonov-Bohm Phase: Feynman’s Thought Experiment with Quantum Point Contacts." Physical Review Letters, 112, 010403
  13. Bhuyan, Sumi; Mondal, Richarj; Khatua, Pradip; Semtsiv, M.; Masselink, W. T.; Leotin, Jean; Pal, Bipul and Bansal, Bhavtosh. 2013."Light emission despite doubly-forbidden radiative transitions in AlP/GaP quantum wells: Role of localized states." Journal of Applied Physics, 114, 163101
  14. Bansal, Bhavtosh; Ghosh, Rituparna and Venkataraman, V.. 2013."Scattering of carriers by charged dislocations in semiconductors." Journal of Applied Physics, 113, 163705
  15. Mondal, Richarj; Bansal, Bhavtosh; Mandal, Arjun; Chakrabarti, Subhananda and Pal, Bipul. 2013."Pauli blocking dynamics in optically excited quantum dots: A picosecond excitation-correlation spectroscopic study." Physical Review B, 87, 115317
  16. Bhattacharya, Rupak; Pal, Bipul and Bansal, Bhavtosh. 2012."On conversion of luminescence into absorption and the van Roosbroeck-Shockley relation." Applied Physics Letters, 100, 222103
  17. Hayne, Manus and Bansal, Bhavtosh. 2012."High-field magneto-photoluminescence of semiconductor nanostructures." Luminescence - The Journal of Biological and Chemical Luminescence, 27, 179 -196
  18. Nuytten, T.; Hayne, M.; Bansal, Bhavtosh; Liu, H. Y.; Hopkinson, M. and Moshchalkov, V. V.. 2011."Charge separation and temperature-induced carrier migration in Ga1-xInxNyAs1-y multiple quantum wells." Physical Review B, 84, 045302
  19. Arora, Ashish; Karmakar, Biswajit; Sharma, Sayantan; Schardt, Michael; Malzer, Stefan; Bansal, Bhavtosh; Döhler, Gottfried and Arora, Brij M.. 2010."Fiber optic based system for polarization sensitive spectroscopy of semiconductor quantum structures." Review of Scientific Instruments 81, 083901 (2010), 81, 083901
  20. Perenboom, J A. A. J.; Frings, P.; Béard, J.; Bansal, B.; Herlach, F.; Peng, Tao and Zherlitsyn, S.. 2010."Optimization of Large Multiple Coil Systems for Pulsed Magnets." Journal of Low Temperature Physics, 159, 336