Light Stops at Exceptional Points
نویسندگان
چکیده
منابع مشابه
Unidirectional light propagation at exceptional points.
The magic garment worn by the fictional wizard Harry Potter makes him invisible and simultaneously allows him to see the outside world. The concept of this type of invisibility cloak has captured the imagination for centuries and has inspired many recent explorations in the field of optics. Making such a fictional garment is indeed a grand challenge: when invisible to the outside observer, the ...
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all animals display profound variations in their physiology over a 24-h period, including changes in locomotor activity, hormone production, metabolism and neural activity. these rhythms are endogenously generated by the circadian system and provide a selective advantage by enabling organisms to anticipate both daily and seasonal changes in the environment. as a result, normal physiology is dyn...
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We demonstrate the generation of chiral modes-vortex flows with fixed handedness in exciton-polariton quantum fluids. The chiral modes arise in the vicinity of exceptional points (non-Hermitian spectral degeneracies) in an optically induced resonator for exciton polaritons. In particular, a vortex is generated by driving two dipole modes of the non-Hermitian ring resonator into degeneracy. Tran...
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We experimentally investigated the decay behavior with time t of resonances near and at exceptional points, where two complex eigenvalues and also the associated eigenfunctions coalesce. The measurements were performed with a dissipative microwave billiard, whose shape depends on two parameters. The t2 dependence predicted at the exceptional point on the basis of a two-state matrix model could ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2018
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.120.013901