Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Bharadwaj, Sathwik"'
The refractive index of a matter is foundational to quantify the light-matter interaction of the medium. However, the classical description of refractive index is based on macroscopic homogenization and is limited to describing the local optical resp
Externí odkaz:
http://arxiv.org/abs/2411.09876
Autor:
Bharadwaj, Sathwik, Jacob, Zubin
Nanophotonics, the study of light-matter interaction at scales smaller than the wavelength of radiation, has widespread applications in plasmonic waveguiding, topological photonic crystals, super-lensing, solar absorbers, and infrared imaging. The ph
Externí odkaz:
http://arxiv.org/abs/2407.15189
Publikováno v:
IEEE Journal on Multiscale and Multiphysics Computational Techniques, 9, 290-302 (2024)
Solid-state spin qubits have emerged as promising platforms for quantum information. Despite extensive efforts in controlling noise in spin qubit quantum applications, one important but less controlled noise source is near-field electromagnetic fluct
Externí odkaz:
http://arxiv.org/abs/2405.01830
Spatiotemporal Optical Vortices (STOVs) are structured electromagnetic fields propagating in free space with phase singularities in the space-time domain. Depending on the tilt of the helical phase front, STOVs can carry both longitudinal and transve
Externí odkaz:
http://arxiv.org/abs/2403.01054
Publikováno v:
New J. Phys. 25 113009 (2023)
Edge states occurring in Chern and quantum spin-Hall phases are signatures of the topological electronic band structure in two-dimensional (2D) materials. Recently, a new topological electromagnetic phase of graphene characterized by the optical N-in
Externí odkaz:
http://arxiv.org/abs/2307.00218
Autor:
Roknuzzaman, Md, Bharadwaj, Sathwik, Wang, Yifan, Khandekar, Chinmay, Jiao, Dan, Rahman, Rajib, Jacob, Zubin
Nonreciprocal gyrotropic materials have attracted significant interest recently in material physics, nanophotonics, and topological physics. Most of the well-known nonreciprocal materials, however, only show nonreciprocity under a strong external mag
Externí odkaz:
http://arxiv.org/abs/2306.09233
Autor:
Sun, Wenbo, Bharadwaj, Sathwik, Yang, Li-Ping, Hsueh, Yu-Ling, Wang, Yifan, Jiao, Dan, Rahman, Rajib, Jacob, Zubin
Publikováno v:
Phys. Rev. Applied 19, 064038 (2023)
High-fidelity quantum gate operations are essential for achieving scalable quantum circuits. In spin qubit quantum computing systems, metallic gates and antennas which are necessary for qubit operation, initialization, and readout, also cause detrime
Externí odkaz:
http://arxiv.org/abs/2207.09441
Observation of Non-Vanishing Optical Helicity in Thermal Radiation from Symmetry-Broken Metasurfaces
Autor:
Wang, Xueji, Sentz, Tyler, Bharadwaj, Sathwik, Ray, Subir, Wang, Yifan, Jiao, Dan, Qi, Limei, Jacob, Zubin
Publikováno v:
Science Advances, Vol 9, Issue 4, 2023
Spinning thermal radiation is a unique phenomenon observed in condensed astronomical objects including the Wolf-Rayet star EZ-CMa and the red degenerate star G99-47, due to existence of strong magnetic fields. Here, by designing symmetry-broken metas
Externí odkaz:
http://arxiv.org/abs/2205.05926
Publikováno v:
Phys. Rev. Applied 18, 044065 (2022)
The concept of photonic frequency $(\omega)$ - momentum $(q)$ dispersion has been extensively studied in artificial dielectric structures such as photonic crystals and metamaterials. However, the $\omega-q$ dispersion of electrodynamic excitations ho
Externí odkaz:
http://arxiv.org/abs/2203.05734
Publikováno v:
Phys. Rev. Research 4, 023011 (2022)
A powerful result of topological band theory is that nontrivial phases manifest obstructions to constructing localized Wannier functions. In Chern insulators, it is impossible to construct Wannier functions that respect translational symmetry in both
Externí odkaz:
http://arxiv.org/abs/2110.10595