Communication-wavelength (1.55 μm) laser induced refractive index change in nematic liquid crystalline films

Iam-choon Khoo, M. Kaczmarek, M. Y. Shih, A. Shishido, J. Ding, Y. Zhang, M. V. Wood

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

We have studied the optical nonlinearities of aligned nematic liquid crystalline films in the near IR communication spectral region [1.55 μm]. The measured refractive index coefficients are on the order of 10-3 cm2/W. The origins of the refractive index changes are thermal indexing effect and director axis reorientation. Phase modulation of several π's can be generated with mW-power near IR lasers in micron thick films.

Original languageEnglish (US)
Pages (from-to)87-91
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4463
DOIs
StatePublished - Jan 1 2001

All Science Journal Classification (ASJC) codes

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

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