Diffraction efficiency improvement of surface relief grating by corona poling

Author

Munakata, K. ; Harada, K. ; Anji, H. ; Ituh, M. ; Yatagai, T. ; Umegaki, S.

Author_Institution

Inst. of Appl. Phys., Univ. of Tsukuba, Ibaraki, Japan

fYear

2000

fDate

6-10 Aug. 2000

Firstpage

394

Lastpage

396

Abstract

A depth of surface relief gratings (SRG) which is fabricated by the irradiation of laser interference fringes in azo-polymer films are improved by poling. The first-order diffraction efficiency is improved from 1.1% to 7.1%. We describe the diffraction efficiency improvement of SRG by poling. Diffraction efficiency and relief depth of SRG by poling or heating is evaluated and theoretically considered. These characteristics are related to the fabrication mechanism of the surface relief electro optical grating (SREOG) by corona poling.

Keywords

corona; dielectric polarisation; diffraction gratings; nonlinear optics; optical films; optical polymers; 1.1 to 7.1 percent; SRG; azo-polymer films; corona poling; diffraction efficiency; diffraction efficiency improvement; fabrication mechanism; first-order diffraction efficiency; laser interference fringes; poling; surface relief electro optical grating; surface relief grating; Corona; Diffraction gratings; Holographic optical components; Holography; Interference; Laser beams; Optical device fabrication; Optical films; Optical polymers; Polymer films;

fLanguage

English

Publisher

ieee

Conference_Titel

Nonlinear Optics: Materials, Fundamentals, and Applications, 2000. Technical Digest

Conference_Location

Kaua´i-Lihue, HI, USA

Print_ISBN

1-55752-646-X

Type

conf

DOI

10.1109/NLO.2000.883687

Filename

883687