Issue 13, 2016

Structure dependence of lasing action in organic polymer films on DFB gratings for dinitrotoluene vapor detection

Abstract

Structure effects of distributed feedback (DFB) gratings on lasing action have been investigated for detecting explosive vapors. For the first time, we have established the optimized profiles of the DFB grating, and given the theoretical path to design its structure for amplified spontaneous emission (ASE) of organic polymer films based on Bragg conditions. A poly(p-phenylene ethynylene) (PPE) film can realize detection of dinitrotoluene (DNT) vapors in 2 min with a reduced excitation threshold of 26 mJ cm−2 by using a simple and common 405 nm laser.

Graphical abstract: Structure dependence of lasing action in organic polymer films on DFB gratings for dinitrotoluene vapor detection

Supplementary files

Article information

Article type
Communication
Submitted
18 Mar 2016
Accepted
30 May 2016
First published
31 May 2016

Analyst, 2016,141, 4018-4023

Structure dependence of lasing action in organic polymer films on DFB gratings for dinitrotoluene vapor detection

Q. Liu, K. Qiu, S. He, H. Liu, Z. Liu, Y. Hong and S. Fu, Analyst, 2016, 141, 4018 DOI: 10.1039/C6AN00653A

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