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Confocal Raman imaging of femtosecond laser induced microstructures in germanate glasses

Confocal Raman imaging of femtosecond laser induced microstructures in germanate glasses
Confocal Raman imaging of femtosecond laser induced microstructures in germanate glasses
Localized microstructures were induced in a germanate glass by irradiation with a focused 800 nm, 250 kHz femtosecond laser pulses. Compared with unirradiated glass, an increase in intensity and a frequency shift of the Raman scattering bands have been observed in a ring-shaped region inside the laser-modified structure. After annealing the sample near the glass transition temperature, the ring-shaped contrast due to enhanced Raman scattering faded away. We propose that the increase in Raman scattering band intensity may be due to local compression of the glass induced by the femtosecond laser pulses irradiation.
0009-2614
122-125
Liu, Yin
0869c5e3-246e-4179-af4d-543cab28894b
Shimizu, Masahiro
f08d0c1c-3975-4979-a49d-50fe94bfdc80
Wang, Xi
84f7714b-eb7d-4e64-90b2-9a065cea904f
Zhu, Bin
ac66f851-8282-4ebf-918e-284693cc1d4f
Sakakura, Masaaki
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Qiu, Jianrong
4cedd2e7-46ac-4fc9-b49c-e1b010b36fd0
Miura, Kiyotaka
5dbc9159-ace0-4dd9-b18d-36f87ae78c47
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2
Liu, Yin
0869c5e3-246e-4179-af4d-543cab28894b
Shimizu, Masahiro
f08d0c1c-3975-4979-a49d-50fe94bfdc80
Wang, Xi
84f7714b-eb7d-4e64-90b2-9a065cea904f
Zhu, Bin
ac66f851-8282-4ebf-918e-284693cc1d4f
Sakakura, Masaaki
3bb15bbd-d590-4cba-ab5a-862dc7acd054
Shimotsuma, Yasuhiko
0664279b-def2-41d4-a5ec-207ce02013a7
Qiu, Jianrong
4cedd2e7-46ac-4fc9-b49c-e1b010b36fd0
Miura, Kiyotaka
5dbc9159-ace0-4dd9-b18d-36f87ae78c47
Hirao, Kazuyuki
5cc5061d-6217-49ae-bc92-ff5b72b9c6c2

Liu, Yin, Shimizu, Masahiro, Wang, Xi, Zhu, Bin, Sakakura, Masaaki, Shimotsuma, Yasuhiko, Qiu, Jianrong, Miura, Kiyotaka and Hirao, Kazuyuki (2009) Confocal Raman imaging of femtosecond laser induced microstructures in germanate glasses. Chemical Physics Letters, 477 (1-3), 122-125. (doi:10.1016/j.cplett.2009.06.092).

Record type: Article

Abstract

Localized microstructures were induced in a germanate glass by irradiation with a focused 800 nm, 250 kHz femtosecond laser pulses. Compared with unirradiated glass, an increase in intensity and a frequency shift of the Raman scattering bands have been observed in a ring-shaped region inside the laser-modified structure. After annealing the sample near the glass transition temperature, the ring-shaped contrast due to enhanced Raman scattering faded away. We propose that the increase in Raman scattering band intensity may be due to local compression of the glass induced by the femtosecond laser pulses irradiation.

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More information

Published date: 28 July 2009
Additional Information: No Southampton authors at time of publication

Identifiers

Local EPrints ID: 431164
URI: http://eprints.soton.ac.uk/id/eprint/431164
ISSN: 0009-2614
PURE UUID: 19c51262-6c80-4940-9101-e5fa713c5763

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Date deposited: 24 May 2019 16:30
Last modified: 16 Mar 2024 01:56

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Contributors

Author: Yin Liu
Author: Masahiro Shimizu
Author: Xi Wang
Author: Bin Zhu
Author: Masaaki Sakakura
Author: Yasuhiko Shimotsuma
Author: Jianrong Qiu
Author: Kiyotaka Miura
Author: Kazuyuki Hirao

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