Coherent anti-Stokes Raman scattering (CARS) is used to measure the amplitude, the dephasing lifetime, and parameters of optical nonlinearities of optical phonons in a synthetic diamond film. A compact CARS apparatus demonstrated in this work relies on the use of an unamplified 70 fs 340 mW Cr:forsterite laser output and photonic-crystal fibers optimized for the generation of wavelength-tunable Stokes field and the spectral compression of the probe pulse.
© 2010 Optical Society of America
Original Manuscript: October 26, 2009
Revised Manuscript: December 15, 2009
Manuscript Accepted: December 16, 2009
Published: March 18, 2010
A. D. Savvin, A. A. Lanin, A. A. Voronin, A. B. Fedotov, and A. M. Zheltikov, "Coherent anti-Stokes Raman metrology of phonons powered by photonic-crystal fibers," Opt. Lett. 35, 919-921 (2010)