Nanostructured kinoform optical elements for high power laser systems

Author

Atuchin, Victor V. ; Soldatenkov, Ivan S.

Author_Institution

Lab. of Opt. Mater. & Struct., Inst. of Semicond. Phys., Novosibirsk, Russia

fYear

2009

fDate

1-6 July 2009

Firstpage

89

Lastpage

91

Abstract

Different kinoform elements have been fabricated in fused silica by precise chemical etching. Kinoform phase relief have been made with an accuracy of ~5 nm. A vortex kinoform mode converter which transforms a zero order Hermite-Gaussian laser mode to first order Laguerre-Gaussian mode with screw phase dislocation has been demonstrated. Conversion efficiency >90% for high power laser beams has been achieved in testing experiments.

Keywords

computer-generated holography; convertors; etching; holographic optical elements; laser beams; laser modes; nanophotonics; nanostructured materials; optical fabrication; silicon compounds; SiO₂; chemical etching; first order Laguerre-Gaussian mode; fused silica; high power laser system; kinoform phase relief; nanostructured kinoform optical element; screw phase dislocation; vortex kinoform mode converter; zero order Hermite-Gaussian laser mode; Chemical elements; Chemical lasers; Etching; Fasteners; Laser beams; Laser modes; Optical vortices; Power lasers; Silicon compounds; Testing; Kinoform; fused silica; photolithography; wet etching;

fLanguage

English

Publisher

ieee

Conference_Titel

Micro/Nanotechnologies and Electron Devices, 2009. EDM 2009. International Conference and Seminar on

Conference_Location

Novosibirsk

Print_ISBN

978-1-4244-4571-4

Type

conf

DOI

10.1109/EDM.2009.5173937

Filename

5173937