Generation of ultrashort optical pulses using multiple coherent anti-Stokes Raman scattering in a crystal at room temperature

Eiichi Matsubara, Taro Sekikawa, Mikio Yamashita
2008 Applied Physics Letters  
We demonstrate Fourier synthesis of multiple coherent anti-Stokes Raman scattering signals in a LiNbO 3 crystal at room temperature. The signals up to the 20th order ͑470-800 nm͒ were generated by two crossing femtosecond Ti:sapphire laser pulses. Angle dispersion of the signals was compensated into one white-continuum beam by modifying a conventional 4f configuration. Spectral phase of the signal was measured by spectral phase interferometry for direct electric-field reconstruction. Isolated
more » ... ruction. Isolated pulses with 25 fs duration at 1 kHz were generated only by appropriately aligning the angle-dispersion compensator. This result opens the possibility of the generation of subfemtosecond pulses in the visible region.
doi:10.1063/1.2883928 fatcat:oqmezuu2nbd3plqjfe72hjt6ny