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Space-selective modification of Au-doped optical grade glass by the femtosecond laser beam

Space-selective modification of Au-doped optical grade glass by the femtosecond laser beam
Space-selective modification of Au-doped optical grade glass by the femtosecond laser beam
Femtosecond laser-induced modification of Au-doped phosphate glass at different pulse repetition rates using an Yb femtosecond amplifier emitting pulses of up to 120 μJ energy at 1030 nm with adjustable repetition rate up to 100 kHz is presented. At the repetition rate as low as 1 kHz, only refractive index modification and formation of red color centers are observed. Increasing the average output laser power resulted in increase of color intensity, but this color could be easily erased by the heat treatment at 300ºC for 20 min indicating athermal nature of these laser-induced effects. By contrast, at the repetition rate from 25 kHz to 100 kHz, cumulative heating effect was demonstrated and allowed to realize for the first time one-stage laser-induced growth of Au nanoparticles in the solid glass accompanied by the appearance of a thermally stable red color. Z-scan analysis of nonlinear properties of the studied glass samples is carried out. Details of Au nanoparticles growth and phosphate glass modification by the tightly focused femtosecond laser beam are discussed.
Lipatiev, Alexey S.
becc200e-6c90-4196-92d1-26bd48ea7e78
Lotarev, Sergey V.
7370e76b-40e9-4e11-818a-841e41686d01
Lipateva, Tatiana O.
dde5e8a3-28f1-4ca8-a6c3-71068db3f948
Savinkov, Vitaliy I.
d9be798f-f4ef-4703-9c74-d1d0e103e8da
Shakhgildyan, Georgiy Yu.
579b5b87-5e31-40b8-b29d-d8eaaac1d3b2
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Sigaev, Vladimir N.
05f569de-f3c4-48d2-8975-b5f5280c4e31
Lipatiev, Alexey S.
becc200e-6c90-4196-92d1-26bd48ea7e78
Lotarev, Sergey V.
7370e76b-40e9-4e11-818a-841e41686d01
Lipateva, Tatiana O.
dde5e8a3-28f1-4ca8-a6c3-71068db3f948
Savinkov, Vitaliy I.
d9be798f-f4ef-4703-9c74-d1d0e103e8da
Shakhgildyan, Georgiy Yu.
579b5b87-5e31-40b8-b29d-d8eaaac1d3b2
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Sigaev, Vladimir N.
05f569de-f3c4-48d2-8975-b5f5280c4e31

Lipatiev, Alexey S., Lotarev, Sergey V., Lipateva, Tatiana O., Savinkov, Vitaliy I., Shakhgildyan, Georgiy Yu., Kazansky, P.G. and Sigaev, Vladimir N. (2015) Space-selective modification of Au-doped optical grade glass by the femtosecond laser beam. 8th International Conference on Photonics, Devices, and System VI: SPIE 9450. 27 - 29 Aug 2015. 8 pp . (doi:10.1117/12.2070191).

Record type: Conference or Workshop Item (Paper)

Abstract

Femtosecond laser-induced modification of Au-doped phosphate glass at different pulse repetition rates using an Yb femtosecond amplifier emitting pulses of up to 120 μJ energy at 1030 nm with adjustable repetition rate up to 100 kHz is presented. At the repetition rate as low as 1 kHz, only refractive index modification and formation of red color centers are observed. Increasing the average output laser power resulted in increase of color intensity, but this color could be easily erased by the heat treatment at 300ºC for 20 min indicating athermal nature of these laser-induced effects. By contrast, at the repetition rate from 25 kHz to 100 kHz, cumulative heating effect was demonstrated and allowed to realize for the first time one-stage laser-induced growth of Au nanoparticles in the solid glass accompanied by the appearance of a thermally stable red color. Z-scan analysis of nonlinear properties of the studied glass samples is carried out. Details of Au nanoparticles growth and phosphate glass modification by the tightly focused femtosecond laser beam are discussed.

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More information

Published date: 6 January 2015
Venue - Dates: 8th International Conference on Photonics, Devices, and System VI: SPIE 9450, 2015-08-27 - 2015-08-29

Identifiers

Local EPrints ID: 442365
URI: http://eprints.soton.ac.uk/id/eprint/442365
PURE UUID: ac341d69-5577-4ba1-b712-6d0221632cdf

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Date deposited: 14 Jul 2020 16:31
Last modified: 20 Aug 2020 16:33

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