PT-symmetric phonon laser under gain saturation effect
نویسندگان
چکیده
منابع مشابه
PT-symmetric phonon laser.
By exploiting recent developments associated with coupled microcavities, we introduce the concept of the PT-symmetric phonon laser with balanced gain and loss. This is accomplished by introducing gain to one of the microcavities such that it balances the passive loss of the other. In the vicinity of the gain-loss balance, a strong nonlinear relation emerges between the intracavity-photon intens...
متن کاملSupplementary Materials for “ PT - Symmetric Phonon Laser ”
H. Jing, 2 S. K. Özdemir, 3 Xin-You Lü, Jing Zhang, 4 Lan Yang, and Franco Nori 5 CEMS, RIKEN, Saitama, 351-0198, Japan Department of Physics, Henan Normal University, Xinxiang 453007, P.R. China Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130, USA Department of Automation, Tsinghua University, Beijing 100084, P.R. China Physics Department, University of Mic...
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We introduce a one-dimensional parity-time- (PT-)symmetric nonlinear magnetic metamaterial consisting of split-ring dimers having both gain and loss. When nonlinearity is absent we find a transition between an exact to a broken PT phase; in the former, the system features a two band gapped spectrum with shape determined by the gain and loss coefficients as well as the interunit coupling. In the...
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We demonstrate that light propagation in waveguide arrays that include PT-symmetric structures can exhibit strongly nonlocal sensitivity to topology of the array at fixed other parameters. We consider an array composed of lossless waveguides, that includes a pair of PT-symmetric waveguides with balanced gain and loss, and reveal that PT-symmetry breaking thresholds are different for planar and ...
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We propose an approach, based on statistical mechanics, to predict the saturated state of a single-pass, high-gain free-electron laser. In analogy with the violent relaxation process in self-gravitating systems and in the Euler equation of two-dimensional turbulence, the initial relaxation of the laser can be described by the statistical mechanics of an associated Vlasov equation. The laser fie...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2020
ISSN: 1094-4087
DOI: 10.1364/oe.396893