Giant birefringence and dichroism induced by ultrafast laser pulses in hydrogenated amorphous silicon

Rokas Drevinskas; Martynas Beresna; Mindaugas Gecevičius; Mark Khenkin; Andrey G. Kazanskii; Ieva Matulaitiene; Gediminas Niaura; Oleg I. Konkov; Eugene I. Terukov; Yu P. Svirko; Peter G. Kazansky

doi:10.1063/1.4919538

Giant birefringence and dichroism induced by ultrafast laser pulses in hydrogenated amorphous silicon

Rokas Drevinskas, Martynas Beresna, Mindaugas Gecevičius, Mark Khenkin, Andrey G. Kazanskii, Ieva Matulaitiene, Gediminas Niaura, Oleg I. Konkov, Eugene I. Terukov, Yu P. Svirko, Peter G. Kazansky

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

33 Scopus citations

Abstract

A femto- and picosecond laser assisted periodic nanostructuring of hydrogenated amorphous silicon (a-Si:H) is demonstrated. The grating structure with the subwavelength modulation of refractive index shows form birefringence (Δn -0.6) which is two orders of magnitude higher than commonly observed in uniaxial crystals and femtosecond laser nanostructured silica glass. The laser-induced giant birefringence and dichroism in a-Si:H film introduce extra dimensions to the polarization sensitive laser writing with applications that include data storage, security marking, and flat optics.

Original language	English
Article number	171106
Journal	Applied Physics Letters
Volume	106
Issue number	17
DOIs	https://doi.org/10.1063/1.4919538
State	Published - 27 Apr 2015
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4919538

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title = "Giant birefringence and dichroism induced by ultrafast laser pulses in hydrogenated amorphous silicon",

abstract = "A femto- and picosecond laser assisted periodic nanostructuring of hydrogenated amorphous silicon (a-Si:H) is demonstrated. The grating structure with the subwavelength modulation of refractive index shows form birefringence (Δn -0.6) which is two orders of magnitude higher than commonly observed in uniaxial crystals and femtosecond laser nanostructured silica glass. The laser-induced giant birefringence and dichroism in a-Si:H film introduce extra dimensions to the polarization sensitive laser writing with applications that include data storage, security marking, and flat optics.",

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T1 - Giant birefringence and dichroism induced by ultrafast laser pulses in hydrogenated amorphous silicon

AU - Drevinskas, Rokas

AU - Beresna, Martynas

AU - Gecevičius, Mindaugas

AU - Khenkin, Mark

AU - Kazanskii, Andrey G.

AU - Matulaitiene, Ieva

AU - Niaura, Gediminas

AU - Konkov, Oleg I.

AU - Terukov, Eugene I.

AU - Svirko, Yu P.

AU - Kazansky, Peter G.

PY - 2015/4/27

Y1 - 2015/4/27

N2 - A femto- and picosecond laser assisted periodic nanostructuring of hydrogenated amorphous silicon (a-Si:H) is demonstrated. The grating structure with the subwavelength modulation of refractive index shows form birefringence (Δn -0.6) which is two orders of magnitude higher than commonly observed in uniaxial crystals and femtosecond laser nanostructured silica glass. The laser-induced giant birefringence and dichroism in a-Si:H film introduce extra dimensions to the polarization sensitive laser writing with applications that include data storage, security marking, and flat optics.

AB - A femto- and picosecond laser assisted periodic nanostructuring of hydrogenated amorphous silicon (a-Si:H) is demonstrated. The grating structure with the subwavelength modulation of refractive index shows form birefringence (Δn -0.6) which is two orders of magnitude higher than commonly observed in uniaxial crystals and femtosecond laser nanostructured silica glass. The laser-induced giant birefringence and dichroism in a-Si:H film introduce extra dimensions to the polarization sensitive laser writing with applications that include data storage, security marking, and flat optics.

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DO - 10.1063/1.4919538

M3 - Article

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SN - 0003-6951

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Giant birefringence and dichroism induced by ultrafast laser pulses in hydrogenated amorphous silicon

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