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Phase transformation under direct laser writing in a YAG single crystal

Phase transformation under direct laser writing in a YAG single crystal
Phase transformation under direct laser writing in a YAG single crystal
The transformation from Y3Al5O12 to perovskite YAlO3 crystal phase was observed during ultrafast laser writing in the bulk of a Y3Al5O12 single crystal. The control of the phase transformation was demonstrated by tuning parameters of laser writing. The phenomenon is interpreted in terms of structural changes in the overheated garnet melt under laser heating followed by rapid solidification, and at least 1-ms dwell time of overheated melt is required to start spontaneous crystallization. The appearance of the perovskite phase was confirmed by Raman spectroscopy, quantitative phase and polarization microscopies.
2159-3930
3408-3421
Okhrimchuk, A.G.
2ce0ccb5-559b-4552-9195-d815be610ff3
Lipatiev, A.S.
7c181b6f-4179-4e7b-971f-d872bc6a489f
Zharikov, E.V.
37ea5111-466c-45c0-9122-29798197134b
Orlova, G.
16b6d6a9-e8f1-4c01-9ee8-e5a49bfd7104
Mezentsev, V.
20f72581-5a88-4a94-99e9-c2919807500c
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Okhrimchuk, A.G.
2ce0ccb5-559b-4552-9195-d815be610ff3
Lipatiev, A.S.
7c181b6f-4179-4e7b-971f-d872bc6a489f
Zharikov, E.V.
37ea5111-466c-45c0-9122-29798197134b
Orlova, G.
16b6d6a9-e8f1-4c01-9ee8-e5a49bfd7104
Mezentsev, V.
20f72581-5a88-4a94-99e9-c2919807500c
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c

Okhrimchuk, A.G., Lipatiev, A.S., Zharikov, E.V., Orlova, G., Mezentsev, V. and Kazansky, P.G. (2017) Phase transformation under direct laser writing in a YAG single crystal. Optical Materials Express, 7 (9), 3408-3421. (doi:10.1364/OME.7.003408).

Record type: Article

Abstract

The transformation from Y3Al5O12 to perovskite YAlO3 crystal phase was observed during ultrafast laser writing in the bulk of a Y3Al5O12 single crystal. The control of the phase transformation was demonstrated by tuning parameters of laser writing. The phenomenon is interpreted in terms of structural changes in the overheated garnet melt under laser heating followed by rapid solidification, and at least 1-ms dwell time of overheated melt is required to start spontaneous crystallization. The appearance of the perovskite phase was confirmed by Raman spectroscopy, quantitative phase and polarization microscopies.

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Published date: 1 September 2017

Identifiers

Local EPrints ID: 441753
URI: http://eprints.soton.ac.uk/id/eprint/441753
ISSN: 2159-3930
PURE UUID: 34380b11-3516-494f-be0b-70231e367a21

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Date deposited: 25 Jun 2020 16:48
Last modified: 28 Jul 2020 16:44

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