Resonant photonic crystals based on van der Waals heterostructures

Autor:	Kazanov, D. R., Poshakinskiy, A. V., Shubina, T. V.
Rok vydání:	2017
Předmět:	Condensed Matter - Materials Science Condensed Matter - Mesoscale and Nanoscale Physics
Druh dokumentu:	Working Paper
Popis:	We propose to use 2D monolayers possessing optical gaps and high exciton oscillator strength as an element of one-dimensional resonant photonic crystals. We demonstrate that such systems are promising for the creation of effective and compact delay units. In the transition-metal-dichalcogenide-based structures where the frequencies of Bragg and exciton resonances are close, a propagating short pulse can be slowed down by few picoseconds while the pulse intensity decreases only 2 - 5 times. This is realized at the frequency of the "slow" mode situated within the stopband. The pulse retardation and attenuation can be controlled by detuning the Bragg frequency from the exciton resonance frequency. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1707.07604 Zobrazit plný text záznamu View this record from Arxiv