Fabrication and Characterization of Thermally Evaporated Omnidirectional Mirrors

Author

Zenou, Michael ; Bruner, Ariel ; Goldin, Shlomo Y. ; Klebanov, Matvei ; Lyubin, Victor ; Sfez, Bruno

Author_Institution

Soreq NRC, Yavne

Volume

19

Issue

22

fYear

2007

Firstpage

1810

Lastpage

1812

Abstract

Omnidirectional mirrors based on chalcogenide and cryolite were fabricated by thermal evaporation. These mirrors are characterized using a two-dimensional mapping that provides a direct, visual signature. These signatures are presented for different multilayer structures. A mirror with an omnidirectional reflectivity of more than 94% and with a transverse electric omnidirectional reflectivity of more than 99.99% for high-incident angles is demonstrated. A surface roughness of less than 5 nm was obtained.

Keywords

integrated optics; mirrors; optical fabrication; optical multilayers; reflectivity; surface roughness; chalcogenide; cryolite; multilayer; omnidirectional mirrors; omnidirectional reflectivity; surface roughness; thermal evaporation; transverse electric reflectivity; visual signature; Fabrication; Mirrors; Nonhomogeneous media; Optical films; Optical refraction; Optical variables control; Periodic structures; Photonic band gap; Photonic crystals; Reflectivity; Dielectric mirror; integrated optics; multilayer coating; omnidirectional reflector; optical properties; photonic crystal; thin film;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.907605

Filename

4367535