Reflection from a semi-infinite rugate filter

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A theoretical approach was applied to compute the reflectance spectrums of semi-infinite rugate filters with a sinusoidal refractive-index profile. Regardless of the linear polarization state of the incident plane wave, the reflectance spectrum of a sufficiently thick rugate filter contains a top-hat feature - indicative of the Bragg regime - with ripples on both flanks. The corresponding reflectance spectrum of a semi-infinite rugate filter also contains the top-hat feature, but is devoid of ripples.

Original languageEnglish (US)
Pages (from-to)562-565
Number of pages4
JournalJournal of Modern Optics
Issue number7
StatePublished - Apr 10 2011

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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