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arXiv · 1107.2950

Frequency Comb Velocity-Modulation Spectroscopy

Laura C. Sinclair·Kevin C. Cossel·Tyler Coffey·Jun Ye·Eric A. Cornell
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Abstract

We have demonstrated a new technique that provides massively parallel comb spectroscopy sensitive specifically to ions through the combination of cavity-enhanced direct frequency comb spectroscopy with velocity modulation spectroscopy. Using this novel system, we have measured electronic transitions of HfF+ and achieved a fractional absorption sensitivity of 3 x 10-7 recorded over 1500 simultaneous channels spanning 150 cm-1 around 800 nm with an absolute frequency accuracy of 30 MHz (0.001 cm-1). A fully sampled spectrum consisting of interleaved measurements is acquired in 30 minutes.

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Laura C. Sinclair, Kevin C. Cossel, Tyler Coffey, Jun Ye, Eric A. Cornell. 2011-07-14. Frequency Comb Velocity-Modulation Spectroscopy. https://doi.org/10.1103/physrevlett.107.093002

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