Document Type

Article

Publication Date

Summer 8-23-2011

Publication Title

Physical Review Letters

ISSN

0031-9007

Volume

107

Issue

9

First Page

093002-1

Last Page

093002-4

DOI

10.1103/PhysRevLett.107.093002

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 3×107 recorded over 1500 simultaneous channels spanning 150  cm1 around 800 nm with an absolute frequency accuracy of 30 MHz (0.001  cm1). A fully sampled spectrum consisting of interleaved measurements is acquired in 30 min.

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