Interferometric carrier-envelope phase stabilization for ultrashort pulses in the mid-infrared

Abstract

We demonstrate an active carrier-envelope phase (CEP) stabilization scheme for optical waveforms generated by difference-frequency mixing of two spectrally detuned and phase-correlated pulses. By performing ellipsometry with spectrally overlapping parts of two co-propagating near-infrared generation pulse trains, we stabilize their relative timing to 18 as. Consequently, we can lock the CEP of the generated mid-infrared (MIR) pulses with a remaining phase jitter below 30 mrad. Employing these pulses for high-harmonic generation in a bulk semiconductor validates our technique. This experiment reveals that our method also stabilizes the energy of the MIR pulses, thereby approaching the intrinsic stability of the underlying laser system.

arXiv comment12 pages, 4 figures

References in corpus (4)

• Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations
• Real-time observation of interfering crystal electrons in high-harmonic generation
• High-harmonic generation in amorphous solids
• Long-term stabilization of carrier envelope phases of mid-infrared pulses for the precise detection of phase-sensitive responses to electromagnetic waves

Cited by in corpus (1)

• Influence of chirp and carrier-envelope phase on non-integer high-harmonic generation