Optical properties of bismuth and gallium substituted thulium iron garnet films

Bismuth and gallium substituted films of thulium iron garnet, grown by liquid phase epitaxy on [111] oriented substrates of gadolinium gallium garnet, are investigated for optical isolator applications. At a wavelength of λ = 1.3 μm the optical damping, the refractive index, the optical anisotropy,...

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Bibliographic Details
Published in:Optics communications 1993-09, Vol.102 (1), p.31-35
Main Authors: Gerhardt, R., Sure, S., Dötsch, H., Linkewitz, T., Tolksdorf, W.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Insulators
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of specific thin films
Physics
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Summary:Bismuth and gallium substituted films of thulium iron garnet, grown by liquid phase epitaxy on [111] oriented substrates of gadolinium gallium garnet, are investigated for optical isolator applications. At a wavelength of λ = 1.3 μm the optical damping, the refractive index, the optical anisotropy, and the Faraday rotation are measured as function of the substitution level. It turns out that the growth induced optical anisotropy is very small, similar to the magnetic anisotropy. The observed difference between forward and backward propagation constants of TM modes is in excellent agreement with calculations.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(93)90467-J