Search Results - "Bansal, Bhavtosh"

Exciton-to-plasma Mott crossover in silicon by Roy, Basabendra, Bansal, Bhavtosh

“…Excitonic Mott transition is a many-body crossover phenomenon where, even at zero temperature, a gas of excitons is expected to spontaneously ionize as its…”
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Dissipation-induced symmetry breaking: Emphanitic transitions in lead- and tin-containing chalcogenides and halide perovskites by Mukhuti, Kingshuk, Sinha, Sudip, Sinha, Subhasis, Bansal, Bhavtosh

“…Lead- and tin-based chalcogenide semiconductors like PbTe or SnSe have long been known to exhibit an unusually low thermal conductivity that makes them very…”
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Carrier thermalization and zero-point bandgap renormalization in halide perovskites from the Urbach tails of the emission spectrum by Mukhuti, Kingshuk, Mandal, Arnab, Roy, Basabendra, Bhattacharyya, Sayan, Bansal, Bhavtosh

“…We develop techniques to study the temperature dependent localization, thermalization, and the effects of phonon scattering on the excitons in halide…”
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Anti-Stokes luminescence in the light of second order perturbation theory by Bhattacharya, Rupak, Pal, Bipul, Bansal, Bhavtosh

“…Anti-Stokes photoluminescence is measured in high-quality GaAs quantum wells. The primary pathway for interband optical absorption and hence emission under…”
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High-field magneto-photoluminescence of semiconductor nanostructures by Hayne, Manus, Bansal, Bhavtosh

“…ABSTRACT We review the photoluminescence of semiconductor nanostructures in high magnetic fields, concentrating on the effects of the applied magnetic field on…”
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Extended excitons and compact heliumlike biexcitons in type-II quantum dots by Bansal, Bhavtosh, Godefroo, S., Hayne, M., Medeiros-Ribeiro, G., Moshchalkov, V. V.

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Diamagnetism–Induced Suppression of the Resonance Energy Transfer by Mukhuti, Kingshuk, Bansal, Bhavtosh

“…Long-range energy transport between resonant states of Coulomb-coupled chromophores is important for energy harvesting processes and applications such as…”
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Photoluminescence from localized states in disordered indium nitride by Bansal, Bhavtosh, Kadir, Abdul, Bhattacharya, Arnab, Moshchalkov, V. V.

“…Photoluminescence spectra from disordered InN were studied in very high magnetic fields. The samples had Gaussian spectra with low temperature emission peaks…”
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Magnetic field-dependent photoluminescence linewidths as a probe of disorder length scales in quantum wells by Bansal, Bhavtosh, Hayne, M., Arora, B. M., Moshchalkov, V. V.

“…Photoluminescence from highly disordered GaAs quantum wells is studied in magnetic fields up to 50 T . The monotonic decrease of the photoluminescence…”
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Alloy disorder effects on the room temperature optical properties of Ga1−xInxNyAs1−y quantum wells by Bansal, Bhavtosh, Kadir, Abdul, Bhattacharya, Arnab, Arora, B. M., Bhat, Rajaram

“…The effect of alloy disorder on optical density of states and average room-temperature carrier statistics in Ga1−xInxNyAs1−y quantum wells is discussed. A…”
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Critical Slowing Down at the Abrupt Mott Transition: When the First-Order Phase Transition Becomes Zeroth Order and Looks Like Second Order by Kundu, Satyaki, Bar, Tapas, Nayak, Rajesh Kumble, Bansal, Bhavtosh

“…We report that the thermally induced Mott transition in vanadium sesquioxide shows critical slowing down and enhanced variance ("critical opalescence") of the…”
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Growth kinetics effects on self-assembled InAs ∕ InP quantum dots by Bansal, Bhavtosh, Gokhale, M. R., Bhattacharya, Arnab, Arora, B. M.

“…A systematic manipulation of the morphology and the optical emission properties of metalorganic vapor phase epitaxy grown ensembles of InAs ∕ InP quantum dots…”
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On conversion of luminescence into absorption and the van Roosbroeck-Shockley relation by Bhattacharya, Rupak, Pal, Bipul, Bansal, Bhavtosh

“…The problem of conversion of experimentally measured luminescence spectrum into the absorption cross section is revisited. The common practice of using the van…”
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Optical coherence in the upconversion luminescence of Er 3 by Mukhuti, Kingshuk, Krishnadas, Anjana, Bhattacharya, Rupak K., Adusumalli, Venkata N.K.B., Mahalingam, Venkataramanan, Pal, Bipul, Bansal, Bhavtosh

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Single-slit electron diffraction with Aharonov-Bohm phase: Feynman's thought experiment with quantum point contacts by Khatua, Pradip, Bansal, Bhavtosh, Shahar, Dan

“…In a "thought experiment," now a classic in physics pedagogy, Feynman visualizes Young's double-slit interference experiment with electrons in magnetic field…”
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Exceptionally Slow, Long-Range, and Non-Gaussian Critical Fluctuations Dominate the Charge Density Wave Transition by Kalimuddin, Sk, Chatterjee, Sudipta, Bera, Arnab, Afzal, Hasan, Bera, Satyabrata, Roy, Deep Singha, Das, Soham, Debnath, Tuhin, Bansal, Bhavtosh, Mondal, Mintu

“…(TaSe_{4})_{2}I is a well-studied quasi-one-dimensional compound long-known to have a charge-density wave (CDW) transition around 263 K. We argue that the…”
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High-mobility InSb epitaxial films grown on a GaAs (001) substrate using liquid-phase epitaxy by Dixit, V. K., Bansal, Bhavtosh, Venkataraman, V., Bhat, H. L., Subbanna, G. N., Chandrasekharan, K. S., Arora, B. M.

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High-field magneto-photoluminescence of semiconductor nanostructures by Hayne, Manus, Bansal, Bhavtosh

“…The cover of this issue of Luminescence features a graph of the shutter sequence for 0.5‐ms exposures at 17 diff erent fi eld values for an InGaAs linear array…”
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Competition between two- and three-photon upconversion in Er3+-doped microcrystals by Mukhuti, Kingshuk, Adusumalli, Venkata N.K.B., Raj R., Kamal, Bansal, Bhavtosh, Mahalingam, Venkataramanan

“…The emission spectrum of lanthanide-rich upconverters consists of optically or thermally excited transition bands involving different pathways. We investigate…”
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Optical coherence in the upconversion luminescence of Er3 by Mukhuti, Kingshuk, Krishnadas, Anjana, Bhattacharya, Rupak K., Adusumalli, Venkata N.K.B., Mahalingam, Venkataramanan, Pal, Bipul, Bansal, Bhavtosh

“…Trivalent lanthanide ions exhibit the ability to convert near-infrared absorption into visible radiation through photon upconversion. Despite decades of…”
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