Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Denis V Novitsky"'
Autor:
Denis V. Novitsky, Dmitry Lyakhov, Dominik Michels, Dmitrii Redka, Alexander A. Pavlov, Alexander S. Shalin
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Unique and flexible properties of non-Hermitian photonic systems attract ever-increasing attention via delivering a whole bunch of novel optical effects and allowing for efficient tuning light-matter interactions on nano- and microscales. To
Externí odkaz:
https://doaj.org/article/59205286f10641a3bcede694edc32ec5
Autor:
Denis V. Novitsky, Andrey V. Novitsky
Publikováno v:
Photonics, Vol 9, Iss 11, p 880 (2022)
There is a recent surge of interest to the bound states in the continuum (BICs) due to their ability to provide high-quality resonances in open photonic systems. They are usually observed in perturbed systems possessing Fano resonances in their spect
Externí odkaz:
https://doaj.org/article/dd88c4861e2440648334085d92ee38d0
Autor:
Denis V. Novitsky
Publikováno v:
Physical Review A. 107
Virtual gain refers to the simulation of real light amplification using radiation with exponentially decaying amplitude, so that its complex frequency corresponds to the scattering pole. We theoretically study virtual gain in a two-level resonant med
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d1fa1c32262fc4a5d77e30d8735037b
https://doi.org/10.1103/physreva.107.013516
https://doi.org/10.1103/physreva.107.013516
Autor:
Andrey Novitsky, Fyodor Morozko, Dongliang Gao, Lei Gao, Alina Karabchevsky, Denis V. Novitsky
Publikováno v:
Physical Review B. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04fbed98f17839d007823441656d778a
https://doi.org/10.1103/physrevb.106.195410
https://doi.org/10.1103/physrevb.106.195410
Autor:
Denis V. Novitsky, Adrià Canós Valero, Aleksandr Krotov, Toms Salgals, Alexander S. Shalin, Andrey V. Novitsky
Non-Hermitian photonic systems with loss and gain attract much attention due to their exceptional abilities in molding the flow of light. Introducing asymmetry to the $\mathcal{PT}$-symmetric system with perfectly balanced loss and gain, we reveal th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06948e563a6c6d8ba7f5e9e68984ffd6
http://arxiv.org/abs/2205.11336
http://arxiv.org/abs/2205.11336
Non-Hermitian photonics based on combining loss and gain media within a single optical system provides a number of approaches to control and generate the flow of light. In this paper, we show that by introducing non-Hermitian perturbation into the sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b988d7f53cb649c907b9551de3e5f669
Publikováno v:
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
A multimode analytical approach is used to investigate the PT-symmetry in hybrid modes of a loss-gain waveguide coupler operated in the THz range. It is shown that loss compensation in this coupler can be achieved by varying the distance between loss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b4f0bc4521c7ba8f9286e0433c85948
https://doi.org/10.1109/irmmw-thz50926.2021.9567124
https://doi.org/10.1109/irmmw-thz50926.2021.9567124
Publikováno v:
Physical Review B. 104
Bound states in the continuum (BICs) enable unique features in tailoring light-matter interaction on nanoscale. These radiationless localized states drive theoretically infinite quality factors and lifetimes for modern nanophotonics, making room for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27cf81cbfbe9c5877450f682f4bfc302
https://doi.org/10.1103/physrevb.104.085126
https://doi.org/10.1103/physrevb.104.085126
Publikováno v:
Physical Review A. 104
Loss compensation via inserting gain is of fundamental importance in different branches of photonics, nanoplasmonics, and metamaterial science. This effect has found an impressive implementation in the parity-time symmetric ($\mathcal{PT}$-symmetric)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ecb69c6479c5067e50953b9afd63755
https://doi.org/10.1103/physreva.104.013507
https://doi.org/10.1103/physreva.104.013507
Publikováno v:
Acta Physica Polonica A. 135:326-331
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ebc721827728a6d8a79b6aab4465091
https://doi.org/10.12693/aphyspola.135.326
https://doi.org/10.12693/aphyspola.135.326