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of 497
pro vyhledávání: '"Makris K"'
In the framework of non-Hermitian photonics, we investigate the interplay between disorder and non-Hermiticity in a one-dimensional Hatano-Nelson lattice. While Anderson localization dictates the wave's evolution in conservative random systems, the i
Externí odkaz:
http://arxiv.org/abs/2407.10746
We provide a theoretical investigation of optical Poincar\'e beams that exhibit interwinding chiral polarized domains upon propagation. We employ both analytical and numerical methods in order to investigate this phenomenon. Specifically, we introduc
Externí odkaz:
http://arxiv.org/abs/2309.14920
Non-Hermitian topological systems simultaneously posses two antagonistic features: ultra sensitivity due to exceptional points and robustness of topological zero energy modes, and it is unclear which one prevails under different perturbations. We stu
Externí odkaz:
http://arxiv.org/abs/2203.02519
Publikováno v:
Laser Photonics Rev. 15, 2100115 (2021)
The engineering of light confinement is a topic with a long history in optics and with significant implications for the control of light-matter interaction. In inhomogeneous and disordered media, however, multiple scattering prevents the application
Externí odkaz:
http://arxiv.org/abs/2103.09182
Publikováno v:
Phys. Rev. Research 3, 013208 (2021)
We study the transport and spectral properties of a non-Hermitian one-dimensional disordered lattice, the diagonal matrix elements of which are random complex variables taking both positive (loss) and negative (gain) imaginary values: Their distribut
Externí odkaz:
http://arxiv.org/abs/2007.08825
Publikováno v:
Phys. Rev. A 102, 033504 (2020)
We investigate the propagation of Gaussian beams through optical waveguide lattices characterized by correlated non-Hermitian disorder. In the framework of coupled mode theory, we demonstrate how the imaginary part of the refractive index needs to be
Externí odkaz:
http://arxiv.org/abs/2005.06414
Autor:
Polydorou, A.E., May, J.P., Makris, K., Ferri, S., Wu, Q., Stride, E., Carugo, D., Evans, N.D.
Publikováno v:
In BBA - General Subjects December 2023 1867(12)
Publikováno v:
Phys. Rev. B 101, 014202 (2020)
In this paper, we study the properties of two-dimensional lattices in the presence of non-Hermitian disorder. In the context of coupled mode theory, we consider random gain-loss distributions on every waveguide channel (on site disorder). Our work pr
Externí odkaz:
http://arxiv.org/abs/1909.13816
Publikováno v:
Phys. Rev. A 92, 063829 (2015)
Studying time-dependent behavior in lasers is analytically difficult due to the saturating non-linearity inherent in the Maxwell-Bloch equations and numerically demanding because of the computational resources needed to discretize both time and space
Externí odkaz:
http://arxiv.org/abs/1507.08820
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