Attosecond control of optical waveforms

Details Attosecond control of optical waveforms Attosecond control of optical waveforms

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005njph....7..116f&link_type=abstract

New Journal of Physics, Volume 7, Issue 1, pp. 116 (2005).

Physics

9

Scientific paper

A new, monolithic scheme for stabilizing the phase between the carrier wave and the envelope (CE phase) in a train of few-cycle laser pulses is demonstrated. Self-phase modulation and second-harmonic generation or difference-frequency generation in a single periodically poled lithium niobate crystal, that transmits the main laser beam, allows for the CE-phase locking directly in the usable output. The monolithic scheme obviates the need for splitting off a fraction of the laser output for CE-phase control, coupling into microstructured fibre, as well as separation and recombination of spectral components. As a result, the CE-phase error integrated over the spectral range of 0.2 mHz 35 MHz is as small as 0.016 × 2π rad. This implies that the phase of the field oscillations (λ ~ 830 nm) with respect to the pulse peak is locked to within 44 attoseconds, resulting in optical waveform control with subhundred attosecond fidelity for the first time.

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