New ultra high-speed all-optical coherent D-trigger

S. N. Bagayev, V. S. Egorov, V. G. Nikolaev, I. B. Mekhov, I. A. Chekhonin, M. A. Chekhonin

Research output

2 Citations (Scopus)

Abstract

We study the interaction of two counterpropagating unipolar video pulses of electromagnetic radiation in a dense resonant two-level medium. The pulse durations are less than one oscillation period of an atomic transition. We show that a polariton cluster (i.e. the compact long-living strongly coupled state of electromagnetic field and matter polarisation) is created, when two unipolar video pulses collide in a resonant medium of the frequency ω o (the pulses correspond to self-induced transparency solitons of the same amplitudes and opposite polarities). We studied for the first time multiple recording and erasing of a polariton cluster in a thin layer of a resonant medium (quantum dots) placed on the mirror surface. We showed that dynamics of the medium population difference N(x,t) is analogous to the operation of a D-trigger of the pulse rate 60 000 GHz and higher. We found such a method of the polariton cluster recording and erasing that excludes the accumulation of erasing errors. Therefore, the total duration of the optical D-trigger operation time can strongly exceed the phase relaxation time T 2

Original languageEnglish
Article number051018
JournalJournal of Physics: Conference Series
Volume1124
Issue number5
DOIs
Publication statusPublished - 1 Jan 2018
Event5th International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures «Saint Petersburg OPEN 2018» - St. Petersburg Academic University RAS , ul. Khlopina 8/3, 194021 St. Petersburg, Russia, St. Petersburg
Duration: 2 Apr 20185 Apr 2018
http://spbopen2018.spbau.com/
http://ru.spbopen.spbau.com/

Scopus subject areas

  • Physics and Astronomy(all)

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