Observation of laser-induced surface waves on flat silicon surface

Takuro Tomita; Yasuhiro Fukumori; Keita Kinoshita; Shigeki Matsuo; Shuichi Hashimoto

doi:10.1063/1.2828983

Observation of laser-induced surface waves on flat silicon surface

Takuro Tomita, Yasuhiro Fukumori, Keita Kinoshita, Shigeki Matsuo, Shuichi Hashimoto

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

46 Citations (Scopus)

Abstract

We found that irradiation by a single femtosecond laser pulse produced a surface wave structure on a (100) silicon surface. The surface wave structure bearing a concentric shape was produced only in the edge regions in the direction of the electric field from the center. The increase in the number of irradiating pulses allowed the concentric structure gradually to align perpendicularly to the laser beam's electric field. The period of the surface wave structure was nearly equal to the wavelength of the irradiating laser pulse. In this accord, we propose that this structure is a precursor of ripple formation.

Original language	English
Article number	013104
Journal	Applied Physics Letters
Volume	92
Issue number	1
DOIs	https://doi.org/10.1063/1.2828983
Publication status	Published - 2008 Jan 16
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Hashimoto, Shuichi

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AB - We found that irradiation by a single femtosecond laser pulse produced a surface wave structure on a (100) silicon surface. The surface wave structure bearing a concentric shape was produced only in the edge regions in the direction of the electric field from the center. The increase in the number of irradiating pulses allowed the concentric structure gradually to align perpendicularly to the laser beam's electric field. The period of the surface wave structure was nearly equal to the wavelength of the irradiating laser pulse. In this accord, we propose that this structure is a precursor of ripple formation.

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