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Proceedings Article

Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals

[+] Author Affiliations
Yana Williams, Kan Chen, Jae Hong Park, Iam Choon Khoo, Brad Lewis, Thomas E. Mallouk

Pennsylvania State Univ.

Proc. SPIE 5936, Liquid Crystals IX, 593613 (August 20, 2005); doi:10.1117/12.617730
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From Conference Volume 5936

  • Liquid Crystals IX
  • Iam-Choon Khoo
  • San Diego, California, USA | July 31, 2005

abstract

We studied the electro-optical property and photorefractive effects in a semiconductor CdSe nanorod doped neamtic liquid crystal [NLC] system. The nonlinear index coefficient is measured to be n 2=2.05×10−2cm 2/W , which is 10 times larger than that of an equivalent pure liquid crystal system. Electro-optical switching investigation shows that the Freedericksz transition voltage of this system is also noticeably lower than that of un-doped NLC. These enhanced electro- and nonlinear optical properties are attributed to the photoconductivity of CdSe nanorods and the enlarged electric conductivity and dielectric anisotropies of the doped system. An AC field assisted photorefractive effect in CdSe nanorod doped liquid crystal system has also been studied.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Yana Williams ; Kan Chen ; Jae Hong Park ; Iam Choon Khoo ; Brad Lewis, et al.
"Electro-optical and nonlinear optical properties of semiconductor nanorod doped liquid crystals", Proc. SPIE 5936, Liquid Crystals IX, 593613 (August 20, 2005); doi:10.1117/12.617730; http://dx.doi.org/10.1117/12.617730


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