Matthew S. Taubman

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— We report improved stabilization results for and progress toward a more accurate frequency measurement of the 532 nm iodine-stabilized system based on a frequency-doubled Nd : YAG ring laser. We confirm the CCL-adopted frequency well within its stated uncertainty (640 kHz).
A technique is presented for generating optical frequency combs centered at arbitrary wavelengths by use of cross-phase modulation (XPM) between a femtosecond pulse train and a cw laser beam by copropagating these signals through an optical fiber. We report results from use of this method to place a 90-MHz frequency comb on an iodine-stabilized Nd:YAG laser(More)
A rapidly-swept external-cavity quantum cascade laser with an open-path Herriott cell is used to quantify gas-phase chemical mixtures of D 2 O and HDO at a rate of 40 Hz (25-ms measurement time). The chemical mixtures were generated by evaporating D 2 O liquid near the open-path Herriott cell, allowing the H/D exchange reaction with ambient H 2 O to produce(More)
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