Absorption coefficients and scattering losses of TGG, TGP, KTF, FS, and CeF3 magneto-optical crystals in the visible via cavity ring-down spectroscopy
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Published:2023-10-06
Issue:29
Volume:62
Page:7730
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ISSN:1559-128X
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Container-title:Applied Optics
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language:en
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Short-container-title:Appl. Opt.
Author:
Xygkis Michalis12,
Linaraki Artemis N.12,
Toutoudaki Eirini N.12,
Katsoprinakis Georgios E.1,
Rakitzis T. Peter12ORCID
Affiliation:
1. Foundation for Research and Technology Hellas, Institute of Electronic Structure and Lasers
2. University of Crete
Abstract
We demonstrate a method for determining small absorption coefficients and surface-scattering losses of crystals using cavity ring-down spectroscopy and perform measurements on magneto-optical crystals of terbium gallium garnet (TGG), terbium gallium phosphate (TGP), fused silica (FS), potassium terbium fluoride (KTF), and CeF3 at 532 and 634 nm. Surface scattering is distinguished from absorption losses by using crystals of different lengths. A figure of merit (FoM) for magneto-optical crystals is defined to evaluate their suitability as intracavity optics in optical cavity applications. It is found that TGP has the highest FoM for crystal lengths up to ∼10mm, whereas CeF3 and FS potentially outperform TGP for longer crystals. Single-pass applications are also briefly discussed.
Funder
General Secretariat for Research and Technology
Hellenic Foundation for Research and Innovation
Publisher
Optica Publishing Group
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
2 articles.
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