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Proceedings Paper

Spontaneous emission modifications in planar microcavities: application to autofluorescence control for thin films under UV irradiation
Author(s): Herve Rigneault; C. Begon; Dominique Nuti; E. Bois
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Paper Abstract

Spontaneous emission control for rare earth ions implanted inside planar multidielectric microcavities is presented and compared in order to compute the electromagnetic power provided by sources locate inside planar dielectric multilayer structures. Radiation patterns are measured in Ta2$.O(subscript 5/SiO2 microcavities implanted with praseodymium ions. Although we demonstrate a significant enhancement of the spontaneous emission in a direction normal to the layer, we show that a large amount of the emitted power is carried by the guided modes of the structures. As a direct application for thin films auto- fluorescence modifications, we concentrate on visible dielectric thin film luminescence under UV irradiation for the high index/low index couple HfO2/SiO2. We exploit those result in an attempt to understand the proper luminescence of three different mirror stacks, both in terms of luminance efficiency and angular emission. This study introduces the 'luminescence engineering' concept which may appear as a relevant thin films design criterion for biological applications.

Paper Details

Date Published: 7 September 1999
PDF: 9 pages
Proc. SPIE 3738, Advances in Optical Interference Coatings, (7 September 1999); doi: 10.1117/12.360091
Show Author Affiliations
Herve Rigneault, Ecole Nationale Superieure de Physique de Marseille (France)
C. Begon, Ecole Nationale Superieure de Physique de Marseille (France)
Dominique Nuti, CIS bio international (France)
E. Bois, CIS bio international (France)

Published in SPIE Proceedings Vol. 3738:
Advances in Optical Interference Coatings
Claude Amra; H. Angus Macleod, Editor(s)

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