12 March 2007 Demonstration of a white light interferometer using fast light
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This paper presents the first demonstration of a white-light-cavity in a free-space cavity. Design of a whitelight- cavity has been proposed using negative dispersion in an intra-cavity medium to make the cavity resonate over a large range of frequencies and still maintain a high cavity build-up. The negative dispersion of the intra-cavity medium is caused by bi-frequency Raman gain in an atomic vapor cell. A significantly broad cavity response over a bandwidth greater than 20 MHz has been observed.
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G. S. Pati, G. S. Pati, M. Messal, M. Messal, M. S. Shahriar, M. S. Shahriar, } "Demonstration of a white light interferometer using fast light", Proc. SPIE 6482, Advanced Optical and Quantum Memories and Computing IV, 64820N (12 March 2007); doi: 10.1117/12.716464; https://doi.org/10.1117/12.716464

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