We demonstrate sub-MHz spectral resolution of N2O absorption spectra acquired with a swept external-cavity quantum cascade laser (QCL) over 0.87 THz. The QCL frequency is monitored by sum -frequency generation with an optical fiber frequency comb.
Proceedings Title: CLEO 2012, the Conference on Lasers and Electro-Optics
Conference Dates: May 6-11, 2012
Conference Location: San Jose, CA
Pub Type: Conferences
comb-assisted spectroscopy, mid-infrared, optical frequency comb, N2O, quantum cascade laser frequency metrology