Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Devarshi Chakrabarty"'
Autor:
Aswini Kumar Pattanayak, Pritam Das, Devarshi Chakrabarty, Avijit Dhara, Shreya Paul, Satyait Maji, Maruthi Manoj Brundavanam, Sajal Dhara
We propose a mechanism of intravalley spin-flip scattering in spin-valley coupled two dimensional systems by transferring momentum of light into exciton center of mass using optical vortex (OV) beams. By varying the dispersion of light using the topo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e1071061a89fd12b4579b3879313228
http://arxiv.org/abs/2202.11603
http://arxiv.org/abs/2202.11603
Autor:
Aswini Kumar Pattanayak, Pritam Das, Avijit Dhara, Devarshi Chakrabarty, Shreya Paul, Kamal Gurnani, Maruthi Manoj Brundavanam, Sajal Dhara
Spin-valley coupling in monolayer transition metal dichalcogenides gives rise to valley polarization and coherence effect, limited by intervalley scattering caused by exciton-phonon, exciton-impurity, and electron-hole exchange interaction (EHEI). We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cfdf1592ad004c4a3800ff47c3997a9
http://arxiv.org/abs/2202.10781
http://arxiv.org/abs/2202.10781
Autor:
Aswini K. Pattanayak, Pritam Das, Devarshi Chakrabarty, Avijit Dhara, Shreya Paul, Sajal Dhara
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
We demonstrate control over intravalley scattering rates in monolayer TMDs, using tunable in-plane momentum of twisted light beam with topological charges (TC). This effect is observed from the variation of Photoluminescence intensity in WSe2 monolay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d530523c6ed09fa37eec6a3f88f168a5
https://doi.org/10.1364/fio.2022.jw4b.58
https://doi.org/10.1364/fio.2022.jw4b.58
Autor:
Devarshi Chakrabarty, Avijit Dhara, Kritika Ghosh, Aswini Kumar Pattanayak, Ayan Roy Chaudhuri, Sajal Dhara
Publikováno v:
Frontiers in Optics + Laser Science 2022 (FIO, LS).
Linearly polarized excitons in anisotropic semiconductors like ReS2 pose intriguing possibilities in photonics and condensed matter physics. Here, we stack multilayer ReS2 on a dielectric mirror, creating anisotropic exciton-polaritons which show tun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e2ec22b45ecd46e522f897ed3fc8479
https://doi.org/10.1364/fio.2022.jw5a.33
https://doi.org/10.1364/fio.2022.jw5a.33
Autor:
Santanu Dhara, S. Paul, Avijit Dhara, Aswini K. Pattanayak, Shreyashi Mukherjee, Devarshi Chakrabarty, Proloy Das
Unidirectional in-plane structural anisotropy in Rhenium-based transition metal dichalcogenides (TMDs) introduces a new class of 2-D materials, exhibiting anisotropic optical properties. In this work, we perform temperature dependent, polarization-re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69740bb16b32bb03624336552bd90f94
Autor:
Devarshi Chakrabarty, Avijit Dhara, Sajal Dhara, Kritika Ghosh, Shreyashi Mukherjee, Ayan Roy Chaudhuri, Aswini K. Pattanayak
Publikováno v:
Optica. 8:1488
Light-matter coupling in van der Waal's materials holds significant promise in realizing Bosonic condensation and superfluidity. The underlying semiconductor's crystal asymmetry, if any, can be utilized to form anisotropic half-light half-matter quas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80991ac91cc2760574bac8422aa1c014
https://doi.org/10.1364/optica.435647
https://doi.org/10.1364/optica.435647