Time-domain interferometry for direct electric-field reconstruction of mid-infrared femtosecond pulses

Cathie Ventalon (1) , James-M. Raser (1) , Manuel Joffre (1)

1 LOB - Laboratoire d'optique et biosciences

Mid-infrared ultrashort pulses of 9.2-mu;m center wavelength are characterized in both amplitude and phase. This is achieved by use of a variant of spectral phase interferometry for direct electric field reconstruction in which spectral interferometry has been replaced with time-domain interferometry, a technique that is well suited for infrared pulses. The setup permits simultaneous recording of the second-order interferometric autocorrelation, thus providing an independent check on the retrieved spectral phase. Mid-infrared ultrashort pulses of 9.2-mu;m center wavelength are characterized in both amplitude and phase. This is achieved by use of a variant of spectral phase interferometry for direct electric field reconstruction in which spectral interferometry has been replaced with time-domain interferometry, a technique that is well suited for infrared pulses. The setup permits simultaneous recording of the second-order interferometric autocorrelation, thus providing an independent check on the retrieved spectral phase. Cop. 2003 Optical Society of America

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Cathie Ventalon, James-M. Raser, Manuel Joffre. Time-domain interferometry for direct electric-field reconstruction of mid-infrared femtosecond pulses. Optics Letters, 2003, 28 (19), pp.1826-1828. ⟨10.1364/OL.28.001826⟩. ⟨hal-00836883⟩