Zobrazeno 1 - 10
of 310
pro vyhledávání: '"kumar, bhupesh"'
We present analytical and simulation study of twisted terahertz (THz) radiation generation via propagation of a circularly polarized Laguerre Gaussian (LG) laser pulse in homogeneous plasma embedded in an axial magnetic field. Analytical formulation
Externí odkaz:
http://arxiv.org/abs/2411.06189
We present compact integrated speckle spectrometers based on monofractal and multifractal scattering media in a silicon-on-insulator platform. Through both numerical and experimental studies we demonstrate enhanced optical throughput, and hence signa
Externí odkaz:
http://arxiv.org/abs/2311.02796
We demonstrate temperature-controlled spectral tunability of a partially-pumped single-wavelength random laser in a solid-state random laser based on DCM (4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran) doped PMMA (polymethyl methacry
Externí odkaz:
http://arxiv.org/abs/2308.07587
A two-dimensional (2D) solid-state random laser emitting in the visible is demonstrated, in which optical feedback is provided by a controlled disordered arrangement of air-holes in a dye-doped polymer film. We find an optimal scatterer density for w
Externí odkaz:
http://arxiv.org/abs/2208.10538
Autor:
Kumar, Bhupesh, Bala, Ritu, Prakash, Vinit, Verma, Jaya, Devi, Sapna, Manhas, Rajesh Kumari, Golobič, Amalija
Publikováno v:
In Journal of Molecular Structure 15 December 2024 1318 Part 2
Autor:
Kumar, Bhupesh, Sebbah, Patrick
If disorder-induced Anderson localized states have been observed experimentally in optics, their study remains challenging leaving a number of open questions unsolved. Among them, the impact on Anderson localization of non-Hermiticity, optical gain a
Externí odkaz:
http://arxiv.org/abs/2201.09386
Autor:
Kumar, Bhupesh, Homri, Ran, Priyanka, Priyanka, Maurya, Santosh, Lebental, Melanie, Sebbah, Patrick
In sufficiently strong scattering media, light transport is suppressed and modes are exponentially localized. Anderson-like localized states have long been recognized as potential candidate for high-Q optical modes for low-threshold, cost effective r
Externí odkaz:
http://arxiv.org/abs/2106.12172
Light scattering and localization in strongly scattering disordered systems is governed by the nature of the underlying eigenmodes, specially their spatial extension within the system. One of the main challenges in studying experimentally Anderson li
Externí odkaz:
http://arxiv.org/abs/2010.06180
Autor:
Goel, Alisha1, Kumar, Bhupesh1 bhupeshkr@yahoo.com, Negi, Sunder1, Mahajan, Sachin2, Puri, Goverdhan D.1, Khan, Waseem A.1
Publikováno v:
Annals of Cardiac Anaesthesia. Jan-Mar2024, Vol. 27 Issue 1, p43-50. 8p.
Autor:
Singh, Avneet *, Kumar, Bhupesh *, Puri, Goverdhan Dutt *, Thingnam, Shyam Kumar Singh, Negi, Sunder Lal *, Niyogi, Subrashsih Guha *
Publikováno v:
In Journal of Cardiothoracic and Vascular Anesthesia August 2022 36(8) Part A:2358-2364