期刊
ADVANCES IN OPTICS AND PHOTONICS
卷 15, 期 2, 页码 442-523出版社
Optica Publishing Group
DOI: 10.1364/AOP.475477
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Non-Hermitian optics is an emerging field that combines quantum physics, electrodynamics, and nanophotonics. It offers a new perspective on the role of gain and loss in optical systems, revealing novel physical concepts such as parity-time symmetry and exceptional points. The advancements in non-Hermitian optics have led to a plethora of new phenomena in wave scattering, optical sensing, and nonlinear optical processes. Furthermore, non-Hermitian effects have significant implications in the field of lasers and quantum optics, including the engineering of single-mode lasers and the exploration of quantum phenomena in non-Hermitian systems.
Non-Hermitian optics is a burgeoning field at the intersection of quantum physics, elec-trodynamics, and nanophotonics. It provides a new perspective of the role of gain and loss in optical systems. Leveraging the advanced designs inspired by non-Hermitian physics, classical optical platforms have been widely investigated to unveil novel physical con-cepts, such as parity-time symmetry and exceptional points, which have no counterparts in the conventional Hermitian settings. These investigations have yielded a plethora of new phenomena in optical wave scattering, optical sensing, and nonlinear optical pro-cesses. Non-Hermitian effects also have a profound impact on the lasing behaviors in the semiclassical framework of lasers, allowing for novel ways to engineer single-mode lasers, chiral laser emission, laser noise, linewidth, etc. Furthermore, over recent years, there has been increasing interest in the explorations of non-Hermitian physics in quan-tum optics, which addresses photon statistics, entanglement, decoherence, and quantum sensing in non-Hermitian systems. In this review, we review the most recent theoretical and experimental advances in non-Hermitian optics and photonics, covering the signifi-cant progress in both classical and quantum optics regimes. & COPY; 2023 Optica Publishing Group
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