Optical tuning of extraordinary optical transmission through a metallic hole array using azobenzene dye-doped nematic liquid crystal

• Junji Kobashi

• Hiroyuki Yoshida

• Takayuki Matsui

• Atsushi Miura

• Naoki Ikeda

• Yoshimasa Sugimoto

• Hisayoshi Fujikawa

• Masanori Ozaki

Abstract

Optical tuning of extraordinary optical transmission (EOT) through a metallic hole array is achieved using an azobenzene dye-doped nematic liquid crystal. The liquid crystal is aligned homeotropically on the hole array and is sandwiched by a counter substrate placed at a distance of approximately 1 µm from the hole array. Upon UV irradiation, the azobenzene dye photo-isomerizes from the trans conformation to the cis conformation and disturbs the liquid crystalline order, causing a decrease in the effective refractive index. The tuning range achieved was 80 nm, and corresponded to a refractive index shift of 0.086. Optical tuning of EOT properties is potentially important for future all-optical processing of signals.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 53 (1S), 01AE02-, 2013-12-31

  IOP Publishing

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1360566399841906432
• NII Article ID: 210000143289
• DOI: 10.7567/jjap.53.01ae02
• ISSN: 13474065
• ISSN: 00214922
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.53.01AE02
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.53.01AE02/pdf
• Data Source:
  • Crossref
  • CiNii Articles
  • KAKEN