Visible anisotropic deformation of chalcogenide glass by optical force

Keiji Tanaka; Nobuaki Terakado; Akira Saitoh

doi:10.1002/pssa.200881349

Visible anisotropic deformation of chalcogenide glass by optical force

Keiji Tanaka, Nobuaki Terakado, Akira Saitoh

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

9 Citations (Scopus)

Abstract

Semi-free As ₂S ₃ glass flakes undergo sub-mm scale anisot ropic deformation upon illumination of linearly-polarized cw bandgap light. The mechanism has been ascribed to photo induced birefringence, optical torque, and photo-induced flu idity. Quantitative measurements demonstrate that generated optical torque is ∼10 ^-20 Nm under a light intensity of 1 mW. This value combined with measured deformation rates for As ₂S ₃ cantilevers suggests a related photo-induced fluidity of 10 ^-1 P ^-1, which is much more fluidal (∼ten orders) than that reported in the conventional photo-induced fluidity. Reasons for this discrepancy are discussed.

Original language	English
Pages (from-to)	892-897
Number of pages	6
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	206
Issue number	5
DOIs	https://doi.org/10.1002/pssa.200881349
Publication status	Published - 2009 May 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Electrical and Electronic Engineering
Materials Chemistry

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10.1002/pssa.200881349

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abstract = "Semi-free As 2S 3 glass flakes undergo sub-mm scale anisot ropic deformation upon illumination of linearly-polarized cw bandgap light. The mechanism has been ascribed to photo induced birefringence, optical torque, and photo-induced flu idity. Quantitative measurements demonstrate that generated optical torque is ∼10 -20 Nm under a light intensity of 1 mW. This value combined with measured deformation rates for As 2S 3 cantilevers suggests a related photo-induced fluidity of 10 -1 P -1, which is much more fluidal (∼ten orders) than that reported in the conventional photo-induced fluidity. Reasons for this discrepancy are discussed.",

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AU - Terakado, Nobuaki

AU - Saitoh, Akira

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N2 - Semi-free As 2S 3 glass flakes undergo sub-mm scale anisot ropic deformation upon illumination of linearly-polarized cw bandgap light. The mechanism has been ascribed to photo induced birefringence, optical torque, and photo-induced flu idity. Quantitative measurements demonstrate that generated optical torque is ∼10 -20 Nm under a light intensity of 1 mW. This value combined with measured deformation rates for As 2S 3 cantilevers suggests a related photo-induced fluidity of 10 -1 P -1, which is much more fluidal (∼ten orders) than that reported in the conventional photo-induced fluidity. Reasons for this discrepancy are discussed.

AB - Semi-free As 2S 3 glass flakes undergo sub-mm scale anisot ropic deformation upon illumination of linearly-polarized cw bandgap light. The mechanism has been ascribed to photo induced birefringence, optical torque, and photo-induced flu idity. Quantitative measurements demonstrate that generated optical torque is ∼10 -20 Nm under a light intensity of 1 mW. This value combined with measured deformation rates for As 2S 3 cantilevers suggests a related photo-induced fluidity of 10 -1 P -1, which is much more fluidal (∼ten orders) than that reported in the conventional photo-induced fluidity. Reasons for this discrepancy are discussed.

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Visible anisotropic deformation of chalcogenide glass by optical force

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