Title :
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
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;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
