Journal
EUROPEAN JOURNAL OF PHYSICS
Volume 43, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6404/ac31d3
Keywords
TGG; Faraday dispersion; spectroscopy
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Researchers used two methods to measure the wavelength dependence of the Verdet constant of a terbium gallium garnet crystal, and found that although the white-light measurement method only requires one source, it is more prone to systematic errors than using multiple laser sources.
The wavelength dependence of the Faraday effect may be measured either sequentially at particular wavelengths using narrow band sources, or simultaneously at many wavelengths using a white-light or broadband source. We apply both methods to measure the wavelength dependence of the Verdet constant of a terbium gallium garnet crystal. We show that although the white-light measurement offers the advantage of requiring only one source, it is more prone to systematic errors than using multiple laser sources.
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