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

被引：32

作者：

Drevinskas, Rokas ^{[1
]}

Beresna, Martynas ^{[1
]}

Gecevicius, Mindaugas ^{[1
]}

Khenkin, Mark ^{[2
]}

Kazanskii, Andrey G. ^{[2
]}

Matulaitiene, Ieva ^{[3
]}

Niaura, Gediminas ^{[3
]}

Konkov, Oleg I. ^{[4
]}

Terukov, Eugene I. ^{[4
]}

Svirko, Yu. P. ^{[5
]}

Kazansky, Peter G. ^{[1
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow, Russia

[3] Ctr Phys Sci & Technol, Dept Organ Chem, LT-01108 Vilnius, Lithuania

[4] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[5] Univ Eastern Finland, Inst Photon, FI-80101 Joensuu, Finland

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

INDUCED-CRYSTALLIZATION; POLARIZERS;

D O I：

10.1063/1.4919538

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 (Delta n approximate to -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. (C) 2015 AIP Publishing LLC.

引用

页数：5

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