Journal of the Optical Society of Korea

  • 제3권1호
  • /
  • Pages.15-19
  • /
  • 1999
  • /
  • 1226-4776(pISSN)
  • /
  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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DOI QR코드

DOI QR Code

Transverse spatial laser beam patterns spontaneously formed in the feedback system with a liquid crystal

  • 투고 : 1998.11.17
  • 발행 : 1999.03.01
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초록

The formation of spontaneous transverse optical patterns was investigated in a single feedback mirror system using nematic liquid crystals as nonlinear optical media. By varying the size of an input beam and the feedback distance, we obtained various interesting transverse optical patterns as well as the hexagonal pattern which are predicted theoretically assuming plane wave input. We can explain theoretically these characteristics of various pattern by introducing a ratio of the beam half width and spatial wavelength of the patterns. We have observed that as this ratio increased, the number of spot constituting the patterns also increased. Finally the patte군 evolved into the sucessive hexagon in the transverse plane.

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참고문헌

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