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|Author(s):||Ian R. Coddington; William C. Swann; Nathan R. Newbury;|
|Title:||Time-domain spectroscopy of the optical free-induction decay from vibrating molecules|
|Published:||April 26, 2010|
|Abstract:||Time-domain spectroscopy using dual, coherent frequency combs is used to measure free-induction decay from a molecular gas sample in the near-IR with a time-domain signal-to-noise ratio of ~106 over a ~6 ns window at 55 fs time resolution (corresponding to the 9 THz source bandwidth) and a frequency/timing accuracy set by the frequency combs. The free-induction decay exhibits the expected periodic pulses from the rephasing of the multiply excited rovibrational levels. This demonstration represents the first high-resolution, high-accuracy, broadband measurement of optical free-induction decay, to our knowledge.|
|Pages:||pp. 1395 - 1397|
|Keywords:||frequency comb, optical free induction decay, spectroscopy|
|Research Areas:||Optical Metrology, Instrumentation, Laser Physics, Remote Sensing|
|PDF version:||Click here to retrieve PDF version of paper (253KB)|