한국광학회지 (Korean Journal of Optics and Photonics)

  • 제7권3호
  • /
  • Pages.200-206
  • /
  • 1996
  • /
  • 1225-6285(pISSN)
  • /
  • 2287-321X(eISSN)
한국광학회 (Optical Society of Korea)
권호 표지

Reflection of a gaussian beam from a planar dielectric interface

  • Lee, Yeon H. (Electronics Department, Sung Kyun Kwan Univ.)
  • 발행 : 1996.09.01
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초록

When a Gaussian beam is incident to a planar dielectric interface at an angle other than Brewster angle or the critical angle of total reflection, we derive the six nonspecular effects of rotation, lateral shift, focal shift, Rayleigh length change, magnitude and phase changes in the complex amplitude of the reflected beam simultaneously by taking account of the boundary condition. In the derivation we assume a Gaussian beam of fundamental mode to emerge from the interface and then match at the interface the constant, linear, and quadratic variations of the amplitude and phase of the reflected beam with those of the incident beam multiplied by the reflection coefficient. Our calculation shows that the six nonspecular effects can result from a linear variation of the natural logarithm of the reflection coefficient at the interface.

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참고문헌

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