Creating traveling waves from standing waves from the gyrotropic paramagnetic properties of Fe3+ ions in a high-Q whispering gallery mode sapphire resonator

K. Benmessai, Michael Tobar, N. Bazin, P.Y. Bourgeois, Y. Kersale, V. Giodano

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Web of Science)

    Abstract

    We report observations of the gyrotropic change in magnetic susceptibility of the Fe3+ electron paramagnetic resonance at 12.037 GHz (between spin states |1/2⟩ and |3/2⟩) in sapphire with respect to the applied magnetic field. Measurements were made by observing the response of the high-Q whispering gallery doublet in a Hemex sapphire resonator cooled to 5 K. The doublets initially existed as standing waves at zero field and were transformed to traveling waves due to the gyrotropic response.
    Original languageEnglish
    Pages (from-to)Article number 174432, 8pp
    JournalPhysical Review B
    Volume79
    Issue number17
    DOIs
    Publication statusPublished - 2009

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