Infrared nonlinear optical power limiting with a nematic liquid crystal film

R. R. Michael, G. M. Finn, R. G. Lindquist, I. C. Khoo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We present a detailed theory of thermally induced transverse self-phase modulation and optical limiting with nematic liquid crystal films at CO2 (10.6μm) wavelengths. Our theory accounts for the detailed roles played by the laser parameters (such as intensity, polarization, wavelength, etc.), sample parameters (such as the thermal index gradient, thermal conductivity thickness, etc.) and the geometrical placement of the lens, sample and detector. The experimental results are in good agreement with the theoretical predictions. Our theory and observation enable us to determine optimal configurations and physical parameters for practical application of these processes.

Original languageEnglish (US)
Pages (from-to)157-163
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 21 1988

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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