Photoresponsive behavior of azotolane liquid crystals

Kunihiko Okano, Tomiki Ikeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we irradiated homogeneously aligned films of an azotolane liquid-crystalline polymer with a single femtosecond (fs) laser pulse. Upon irradiation of the single pulse, the change in Δ n was induced by destruction of due to destroy the homogeneous alignment of the azotolane moieties was induced. The estimated value of the change in Δ n was >0.2, and the response time was about 400 ns. When the experiment temperature was below glass transition temperature, the change in alignment induced by the pulsed irradiation was preserved without a thermal relaxation. On the other hand, the changed alignment completely recovered to the initial state with an increase in temperature.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7232
DOIs
Publication statusPublished - 2009
EventEmerging Liquid Crystal Technologies IV - San Jose, CA, United States
Duration: 2009 Jan 252009 Jan 28

Other

OtherEmerging Liquid Crystal Technologies IV
CountryUnited States
CitySan Jose, CA
Period09/1/2509/1/28

Fingerprint

Liquid Crystals
Liquid Crystal
Liquid crystals
Alignment
liquid crystals
alignment
Irradiation
Liquid Crystalline Polymer
Femtosecond Laser Pulses
irradiation
Liquid crystal polymers
Glass Transition
pulses
Ultrashort pulses
glass transition temperature
Response Time
destruction
Temperature
temperature
polymers

Keywords

  • Azotolane
  • Birefringence
  • Liquid crystalline polymer

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Okano, K., & Ikeda, T. (2009). Photoresponsive behavior of azotolane liquid crystals. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7232). [723209] https://doi.org/10.1117/12.804146

Photoresponsive behavior of azotolane liquid crystals. / Okano, Kunihiko; Ikeda, Tomiki.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7232 2009. 723209.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Okano, K & Ikeda, T 2009, Photoresponsive behavior of azotolane liquid crystals. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7232, 723209, Emerging Liquid Crystal Technologies IV, San Jose, CA, United States, 09/1/25. https://doi.org/10.1117/12.804146
Okano K, Ikeda T. Photoresponsive behavior of azotolane liquid crystals. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7232. 2009. 723209 https://doi.org/10.1117/12.804146
Okano, Kunihiko ; Ikeda, Tomiki. / Photoresponsive behavior of azotolane liquid crystals. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7232 2009.
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