Radially polarized optical vortex micro-converters imprinted by femtosecond laser nanostructuring in amorphous silicon

Author

Drevinskas, Rokas ; Beresna, Martynas ; Gecevicius, Mindaugas ; Kazanskii, Andrey G. ; Konkov, Oleg I. ; Svirko, Yuri P. ; Kazansky, Peter G.

Author_Institution

Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK

fYear

2015

fDate

10-15 May 2015

Firstpage

1

Lastpage

2

Abstract

We demonstrate space variant polarization and phase converters imprinted by femtosecond laser nanostructuring in hydrogenated amorphous silicon thin film. Giant birefringence of imprinted structures allows fabrication of microoptic element arrays.

Keywords

amorphous semiconductors; birefringence; elemental semiconductors; high-speed optical techniques; hydrogen; laser materials processing; light polarisation; micro-optics; optical arrays; optical elements; optical fabrication; optical vortices; semiconductor thin films; silicon; Si:H; birefringence; femtosecond laser nanostructuring; hydrogenated amorphous silicon thin film; microoptic element array fabrication; phase converters; radially polarized optical vortex microconverters; space variant polarization; Optical filters; Optical imaging; Optical polarization; Optical sensors; Optical vortices; Polarization; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics (CLEO), 2015 Conference on

Conference_Location

San Jose, CA

Type

conf

Filename

7182895