Spontaneous and stimulated emission of thin-film polymer structures in the presence of nitrotoluene vapour
-
Published:2021-03-01
Issue:3
Volume:51
Page:206-210
-
ISSN:1063-7818
-
Container-title:Quantum Electronics
-
language:
-
Short-container-title:Quantum Electron.
Author:
Berdybaeva Sh.T.,Tel’minov E.N.,Solodova T.A.,Nikonova E.N.,Samsonova L.G.,Kopylova T.N.
Abstract
Abstract
The features of spontaneous and stimulated emission of polyfluorenes, polyvinylcarbazole, and low-molecular-weight electron-donor compounds incorporated into various materials are studied in the presence of nitrotoluene vapour. Lasing in planar thin-film waveguides is achieved. The dynamics of the lasing spectra of a thin-film optical chemical sensor is presented. It is shown that the response time of the sensor in the lasing regime is 30 s before the lasing intensity decreases by 50% from the initial level.
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics,Electronic, Optical and Magnetic Materials