Investigation of photoreaction mechanism of photosensitive glass by femtosecond laser

Tomohiro Hongo; Koji Sugioka; Hiroyuki Niino; Ya Cheng; Masashi Masuda; Iwao Miyamoto; Hiroshi Takai; Katsumi Midorikawa

doi:10.1063/1.1856223

Investigation of photoreaction mechanism of photosensitive glass by femtosecond laser

Tomohiro Hongo^*
, Koji Sugioka
, Hiroyuki Niino
, Ya Cheng
, Masashi Masuda
, Iwao Miyamoto
, Hiroshi Takai
, Katsumi Midorikawa

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

95 Scopus citations

Abstract

A high-intensity femtosecond (fs) laser can fabricate complicated three-dimensional microstructures inside photosensitive glass with high spatial resolution. In this work, the mechanism of the photoreaction of the photosensitive glass to the infrared fs laser is investigated. We examine the photoinduced electron excitation process on the basis of the determination of the critical dose and a change of the optical-absorption spectrum after the fs laser irradiation. The photoreaction mechanism is discussed in comparison with the case of an ultraviolet nanosecond laser irradiation. Finally, the successive interband electron excitation through defect levels by multiphoton absorption is proposed.

Original language	English
Article number	063517
Journal	Journal of Applied Physics
Volume	97
Issue number	6
DOIs	https://doi.org/10.1063/1.1856223
State	Published - 2005
Externally published	Yes

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10.1063/1.1856223

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title = "Investigation of photoreaction mechanism of photosensitive glass by femtosecond laser",

abstract = "A high-intensity femtosecond (fs) laser can fabricate complicated three-dimensional microstructures inside photosensitive glass with high spatial resolution. In this work, the mechanism of the photoreaction of the photosensitive glass to the infrared fs laser is investigated. We examine the photoinduced electron excitation process on the basis of the determination of the critical dose and a change of the optical-absorption spectrum after the fs laser irradiation. The photoreaction mechanism is discussed in comparison with the case of an ultraviolet nanosecond laser irradiation. Finally, the successive interband electron excitation through defect levels by multiphoton absorption is proposed.",

author = "Tomohiro Hongo and Koji Sugioka and Hiroyuki Niino and Ya Cheng and Masashi Masuda and Iwao Miyamoto and Hiroshi Takai and Katsumi Midorikawa",

year = "2005",

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language = "英语",

volume = "97",

journal = "Journal of Applied Physics",

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T1 - Investigation of photoreaction mechanism of photosensitive glass by femtosecond laser

AU - Hongo, Tomohiro

AU - Sugioka, Koji

AU - Niino, Hiroyuki

AU - Cheng, Ya

AU - Masuda, Masashi

AU - Miyamoto, Iwao

AU - Takai, Hiroshi

AU - Midorikawa, Katsumi

PY - 2005

Y1 - 2005

N2 - A high-intensity femtosecond (fs) laser can fabricate complicated three-dimensional microstructures inside photosensitive glass with high spatial resolution. In this work, the mechanism of the photoreaction of the photosensitive glass to the infrared fs laser is investigated. We examine the photoinduced electron excitation process on the basis of the determination of the critical dose and a change of the optical-absorption spectrum after the fs laser irradiation. The photoreaction mechanism is discussed in comparison with the case of an ultraviolet nanosecond laser irradiation. Finally, the successive interband electron excitation through defect levels by multiphoton absorption is proposed.

AB - A high-intensity femtosecond (fs) laser can fabricate complicated three-dimensional microstructures inside photosensitive glass with high spatial resolution. In this work, the mechanism of the photoreaction of the photosensitive glass to the infrared fs laser is investigated. We examine the photoinduced electron excitation process on the basis of the determination of the critical dose and a change of the optical-absorption spectrum after the fs laser irradiation. The photoreaction mechanism is discussed in comparison with the case of an ultraviolet nanosecond laser irradiation. Finally, the successive interband electron excitation through defect levels by multiphoton absorption is proposed.

UR - https://www.scopus.com/pages/publications/20444455029

U2 - 10.1063/1.1856223

DO - 10.1063/1.1856223

M3 - 文章

AN - SCOPUS:20444455029

SN - 0021-8979

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 6

M1 - 063517

ER -

Investigation of photoreaction mechanism of photosensitive glass by femtosecond laser

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