Organic semiconductor distributed feedback laser fabricated by direct laser interference ablation

  • We use a pulsed, frequency tripled picosecond Nd:YAG laser for holographic ablation to pattern a surface relief grating into an organic semiconductor guest-host system. The resulting second order distributed feedback lasers exhibit laser action with laser thresholds being comparable to those obtained with resonators structured by standard lithographic techniques. The details of the interference ablation of tris-(8-hydroxyquinoline) aluminum (Alq(3)) doped with the laser dye 4- dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) are presented and discussed. Lasing action is demonstrated at a wavelength of 646.6 nm, exploiting second order Bragg reflection in a relief grating with a period of 399 nm.

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Author:Marc Stroisch, Thomas Woggon, Uli Lemmer, Georg Bastian, Georg Violakis, Stavros Pissadakis
Parent Title (English):Optical Express
Document Type:Article (specialist journals)
Date of OPUS upload:2022/09/22
Date of first Publication:2007/04/02
Publishing University:Hochschule Trier
Release Date:2022/09/22
Tag:distributed-feedback; laser materials processing; lasers; organic materials; semiconductor lasers; visible lasers; volume holographic gratings
GND Keyword:Laser; Halbleiterlaser; Organischer Stoff
Article Number:PMID: 19532640
Page Number:6
First Page:3968
Last Page:3973
Departments:FB Technik
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 60 Technik
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International