The two-photon absorption spectrum of ruby and its role in distributed optical fibre sensing

Dalzell, C. J. and Han, T. P. J. and Ruddock, I. S. (2011) The two-photon absorption spectrum of ruby and its role in distributed optical fibre sensing. Applied Physics B: Lasers and Optics, 103 (1). pp. 113-116. ISSN 0946-2171

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Abstract

The two-photon absorption spectrum and cross-section (δ) for ruby (Cr3+:sapphire) have been measured over the 0.8–1.2 μm wavelength range at 25°C. Absolute values of δ were obtained by comparing the fluorescence yield for two-photon excitation with that for single-photon excitation of the same ionic transition under identical illumination conditions. The maximum values of δ are 4.6×10−3 GM for o-polarisation and 5.9×10−3 GM for e-polarisation at 840 nm. The relevance of these measurements to distributed optical fibre sensing is briefly discussed.

Item type:	Article
ID code:	31036
Keywords:	single crystal fiber, fluorescence , temperature, dependences, growth, laser, Optics. Light, Physics and Astronomy(all), Physics and Astronomy (miscellaneous)
Subjects:	Science > Physics > Optics. Light
Department:	Faculty of Science > Physics
Depositing user:	Pure Administrator
Date deposited:	13 May 2011 15:37
Last modified:	22 Mar 2017 11:23
Related URLs:	Scopus publication
URI:	https://strathprints.strath.ac.uk/id/eprint/31036
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