Optical pulses in a non-Hermitian medium near a singularity

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The spectral method was used to solve the problem of interaction of short optical pulses with RT-symmetric photonic crystals under conditions of frequency singularity. It is shown that with a small deviation from the exceptional point of spontaneous decay of PT-symmetric field modes, a frequency singularity of the transmission and reflection coefficients of the structure arises. This leads to a significant narrowing of the pulse spectra and an increase in their amplitude and duration with unidirectional Bragg reflection.

作者简介

V. Bushuev

Lomonosov Moscow State University

Moscow, Russia

B. Mantsyzov

Lomonosov Moscow State University

Email: bmantsyzov@gmail.com
Moscow, Russia

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