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Amplification of High-Order Rainbows of a Cylinder with an Elliptical Cross Section

James A. Lock, Charles L. Adler, Bradley R. Stone, Patrick D. Zajak

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The intensity of high-order rainbows for normally incident light and certain rotation angles of a cylinder with an elliptical cross section is greatly amplified with respect to the intensity for a circular cross-sectional cylinder. The amplification is due to a number of the internal reflections occurring past the critical angle for total internal reflection, and the effect is especially strong for odd-order rainbows, beginning with the third order. Experimentally, the fourth-and the fifth-order rainbows of a nearly elliptical cross-sectional glass rod were observed and analyzed. (C) 1998 Optical Society of America.

    Original languageAmerican English
    JournalApplied Optics
    Volume37
    DOIs
    StatePublished - Mar 20 1998

    Disciplines

    • Physics

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