Photoresponsive behavior of azotolane liquid crystals

Kunihiko Okano, Tomiki Ikeda

Research output: Contribution to journalConference articlepeer-review


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
Article number723209
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2009
Externally publishedYes
EventEmerging Liquid Crystal Technologies IV - San Jose, CA, United States
Duration: 2009 Jan 252009 Jan 28


  • Azotolane
  • Birefringence
  • Liquid crystalline polymer

ASJC Scopus subject areas

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


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