Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Yogesh Kumar Srivastava"'
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Non-radiative bound states in the continuum (BICs) allow construction of resonant cavities with confined electromagnetic energy and high-quality (Q) factors. However, the sharp decay of the Q factor in the momentum space limits their usefuln
Externí odkaz:
https://doaj.org/article/189b9244a1774f0bba98db7d7f95cc6d
Autor:
Deepak Kumar, Manoj Gupta, Yogesh Kumar Srivastava, Koijam Monika Devi, Ranjan Kumar, Dibakar Roy Chowdhury
In modern day photonic integrated circuitries (ICs), near-field Coulomb interaction plays an important role in the device performances. In fact, harvesting Coulomb effect intelligently can immensely help to realize advanced photonic devices in micro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d3cf09e98a71d5ef03e4e6f245dcc83
https://hdl.handle.net/10356/156224
https://hdl.handle.net/10356/156224
Nonradiating charge-current configurations have attracted attention in photonics for the efficient localization of the electromagnetic field. Anapole mode is a unique nonradiating state of light induced by the interference of electric and toroidal di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d96c258f14d8eb87da4d3e5066e90b78
https://hdl.handle.net/10356/156116
https://hdl.handle.net/10356/156116
Autor:
Ranjan Singh, Kandammathe Valiyaveedu Sreekanth, Rohit Medwal, Manukumara Manjappa, Yogesh Kumar Srivastava, Rajdeep Singh Rawat
Publikováno v:
Nano letters. 21(23)
Thin film optical coatings have a wide range of industrial applications from displays and lighting to photovoltaic cells. The realization of electrically tunable thin film optical coatings in the visible wavelength range is particularly important to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46d44c232a043c7f470e1a835fb21aa8
https://pubmed.ncbi.nlm.nih.gov/34802245
https://pubmed.ncbi.nlm.nih.gov/34802245
Autor:
Eric Plum, Sharath Sriram, Yogesh Kumar Srivastava, Wenhao Wang, Madhu Bhaskaran, Thomas CaiWei Tan, Ranjan Singh, Ibraheem Al-Naib, Rajour Tanyi Ako
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 33(27)
A bound state in the continuum (BIC) is a nonradiating state of light embedded in the continuum of propagating modes providing drastic enhancement of the electromagnetic field and its localization at micro–nanoscale. However, access to such modes i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8aebd5db48874025b3d61ef4d2bcdf2
https://pubmed.ncbi.nlm.nih.gov/34050568
https://pubmed.ncbi.nlm.nih.gov/34050568
Autor:
Yogesh Kumar Srivastava, Longqing Cong, Xueqian Zhang, Jiaguang Han, Huifang Zhang, Ranjan Singh
Publikováno v:
Light: Science & Applications, Vol 7, Iss 1, Pp 1-9 (2018)
Light, Science & Applications
Light, Science & Applications
Miniaturized ultrafast switchable optical components with an extremely compact size and a high-speed response will be the core of next-generation all-optical devices instead of traditional integrated circuits, which are approaching the bottleneck of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::508913ae1085c5c988722817a87b9162
Publikováno v:
2020 IEEE International Conference on Plasma Science (ICOPS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54eac0a6fec7a793cd59aaedde9b04cb
https://doi.org/10.1109/icops37625.2020.9717349
https://doi.org/10.1109/icops37625.2020.9717349
Publikováno v:
ACS Photonics. 4:1595-1601
Solution-processed organic–inorganic hybrid halide perovskite has emerged as an excellent material for harnessing solar energy. The ease of processing offers a fairly straightforward approach to integrate methylammonium lead iodide perovskite with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f40696d6e403f5ef9cb661022f3f0a7
https://doi.org/10.1021/acsphotonics.7b00191
https://doi.org/10.1021/acsphotonics.7b00191
Autor:
Yuri S. Kivshar, Jiaguang Han, Ranjan Singh, Quanlong Yang, Sergey Kruk, Ivan I. Kravchenko, Yogesh Kumar Srivastava, Qingwei Wang, Yuehong Xu, Kirill Koshelev, Ilya V. Shadrivov
Publikováno v:
14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020).
We introduce Mie-resonant dielectric membrane metasurfaces for THz frequencies. We design silicon membrane metasurfaces with the 2π phase coverage and high transmission efficiencies to provide novel opportunities for an efficient wavefront control a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04dadcaf631cb144e5368c888f9ff3c4
https://doi.org/10.1364/cleopr.2020.c1e_2
https://doi.org/10.1364/cleopr.2020.c1e_2
Publikováno v:
Next-Generation Spectroscopic Technologies XII.
The metamaterial is an arrangement of artificial structural elements designed to achieve advantageous and unusual electromagnetic properties. In the unit cell level, metamaterials are composed of an array of small structured elements called split rin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00363601367ebe5985439bd9046ea296
https://doi.org/10.1117/12.2519820
https://doi.org/10.1117/12.2519820