Vacuum laser annealing of magnetooptical cerium-substituted yttrium iron garnet films
Laser annealing in a vacuum chamber was employed to achieve the selective crystallization of a cerium-substituted yttrium iron garnet (Ce:YIG, Ce1Y2Fe5O12) film on a glass substrate. The film was selectively crystallized using a continuous-wave laser, and the transmissivity, optical constants, elect...
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Published in | Optical materials Vol. 146; p. 114530 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.12.2023
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Subjects | |
Online Access | Get full text |
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Summary: | Laser annealing in a vacuum chamber was employed to achieve the selective crystallization of a cerium-substituted yttrium iron garnet (Ce:YIG, Ce1Y2Fe5O12) film on a glass substrate. The film was selectively crystallized using a continuous-wave laser, and the transmissivity, optical constants, electronic binding states, magnetic properties, and magnetooptical properties of the fabricated Ce:YIG films were measured. A single Ce:YIG phase was observed using X-ray diffraction, and the film's magnetization was comparable to that of Ce:YIG prepared by heater annealing. Faraday rotation angles of 0.50°/μm and −0.25°/μm were obtained at wavelengths of 532 nm and 1064 nm, respectively.
•Selective annealing of Ce:YIG has been essential for integrated optical isolators.•Vacuum laser annealing was utilized to fabricate polycrystalline Ce:YIG films.•A polycrystalline Ce:YIG phase was obtained by combining a laser and heater.•The crystallized film exhibited magnetooptical responses.•The proposed method achieved the selective crystallization of the film. |
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ISSN: | 0925-3467 1873-1252 |
DOI: | 10.1016/j.optmat.2023.114530 |