Infrared laser wave mixing and optical limiting with nematic liquid crystal films.

R. R. Michael, P. Y. Yan, G. M. Finn, I. C. Khoo

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

Abstract

The passage of one (or two) laser beams through a highly nonlinear medium is accompanied by several effects. When a laser beam passes through a highly nonlinear thin film, the transmission will undergo various forms of spatial intensity distribution (self-focusing, defocusing, bistability, bending, etc.) that can be utilized in optical switches and limiters. When two laser beams are mixed in the medium, mutual exchange of energy and creation of new diffracted beams can be used for image/beam manipulaiations, amplifications, and combining. Theoretical calculations made of some fundamental aspects of these effects as well as feasibility types of calculation for some switching, optical limiting, and amplification devices are presented. Results of experiments based on the extraordinarily high-thermal-index gradient of nematic liquid crystals near the phase transition temperature are described.

Original languageEnglish (US)
Title of host publicationCLEO 88 Conf Lasers Electro Opt 1988 Tech Dig Ser Vol 7
PublisherPubl by IEEE
Pages238, 240
ISBN (Print)155752033X
StatePublished - Dec 1 1988

Publication series

NameCLEO 88 Conf Lasers Electro Opt 1988 Tech Dig Ser Vol 7

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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