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Proceedings Paper

Spectral-spatial redistribution of self-trapped excitonic emission in thin anatase films
Author(s): V. Kiisk; Ilmo Sildos; O. Sild; Jaan Aarik
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Paper Abstract

Far-field intensity distribution of self-trapped exciton (STE) photoluminescence (PL) of TiO2 (anatase) thin films grown on SiO2 and MgO substrates was studied at temperature of 5 K. The spectrum recorded from a cleaved edge of the substrate in the direction nearly parallel to the film surface showed that the emission field was partly modified into two spectrally narrow, polarized, spatially directed modes. The effect was interpreted as a constructive interference of the emission leaving the anatase film nearly at the critical angle of total internal reflection.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.531224
Show Author Affiliations
V. Kiisk, Univ. of Tartu (Estonia)
Ilmo Sildos, Univ. of Tartu (Estonia)
O. Sild, Univ. of Tartu (Estonia)
Jaan Aarik, Univ. of Tartu (Estonia)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life
Giancarlo C. Righini; Anna Consortini, Editor(s)

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