Takao Fuji et al 2005 New J. Phys. 7 116 doi:10.1088/1367-2630/7/1/116
Attosecond control of optical waveforms
Takao Fuji1, Jens Rauschenberger1, Christoph Gohle1, Alexander Apolonski2,3, Thomas Udem1, Vladislav S Yakovlev2, Gabriel Tempea4, Theodor W Hänsch1 and Ferenc Krausz1,2,5
Show affiliationsA 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.
- PACS
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42.65.Ky Frequency conversion; harmonic generation, including higher-order harmonic generation
42.60.Fc Modulation, tuning, and mode locking
42.65.Jx Beam trapping, self-focusing and defocusing; self-phase modulation
42.65.Re Ultrafast processes; optical pulse generation and pulse compression
- Subjects
- Dates
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Issue 1 (May 2005)
Received 14 February 2005
Published 3 May 2005
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Attosecond control of optical waveforms
Takao Fuji et al 2005 New J. Phys. 7 116
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