Leaky-mode emission of luminescent thin films on transparent substrates

Penzkofer, Alfons and Holzer, W. and Tillmann, H. and Hoerhold, H.-H. (2004) Leaky-mode emission of luminescent thin films on transparent substrates. OPTICS COMMUNICATIONS, 229 (1-6). pp. 279-290. ISSN 0030-4018, 1873-0310

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Abstract

The angle, wavelength, and thickness dependent fluorescence emission of a luminescent film on a transparent substrate into the substrate and the air is studied theoretically by Fresnel type transmittance calculations for s-(TE) and p-(TM) polarised emission. A micro-cavity behaviour due to Fabry-Perot like constructive and destructive interference is observed. The Fabry-Perot like interference strongly modifies the grazing-angle in-substrate spontaneous emission spectrum compared to the normal-incidence spontaneous emission. The wavelength selective constructive leaky-mode emission allows the determination of the refractive indices of luminescent thin films for TE and TM polarised light. Sublaser-threshold grazing-angle in-substrate emission is analysed for molecular 4-methyl-TPD and polymeric TPD(4M)-MEH-P-PPV thin films. (C) 2003 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: AMPLIFIED SPONTANEOUS EMISSION; OPTICAL-MICROCAVITY STRUCTURE; DOO-PPV FILMS; CONJUGATED-POLYMER; ELECTROLUMINESCENT DIODES; WAVE-GUIDES; NEAT FILMS; LIGHT; LASER; GAIN; leaky mode emission; asymmetric wave-guide; luminescent polymers; multiple-beam reflection; refractive index dependence
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 23 Jul 2021 08:05
Last Modified: 23 Jul 2021 08:05
URI: https://pred.uni-regensburg.de/id/eprint/38085

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