Abstract

We demonstrate a compact source of energetic and phase-locked multi-terahertz pulses at a repetition rate of 190 kHz. Difference frequency mixing of the fundamental output of an Yb:KGW amplifier with the idler of an optical parametric amplifier in GaSe and LiGaS2 crystals yields a passively phase-locked train of waveforms tunable between 12 and 42 THz. The shortest multi-terahertz pulses contain 1.8 oscillation cycles within the intensity full width at half-maximum. Pulse energies of up to 0.16 μJ and peak electric fields of 13 MV/cm are achieved. Electro-optic sampling reveals a phase stability better than 0.1 π over multiple hours, combined with free carrier-envelope phase tunability. The scalable scheme opens the door to strong-field terahertz optics at unprecedented repetition rates.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Phase-locked generation and field-resolved detection of widely tunable terahertz pulses with amplitudes exceeding 100 MV/cm

Alexander Sell, Alfred Leitenstorfer, and Rupert Huber
Opt. Lett. 33(23) 2767-2769 (2008)

Multibranch pulse synthesis and electro-optic detection of subcycle multi-terahertz electric fields

Philipp Merkl, Matthias Knorr, Christian Meineke, Lukas Kastner, Dominik Peller, and Rupert Huber
Opt. Lett. 44(22) 5521-5524 (2019)

Subcycle mid-infrared coherent transients at 4  MHz repetition rate applicable to light-wave-driven scanning tunneling microscopy

Katsumasa Yoshioka, Ippo Igarashi, Shoji Yoshida, Yusuke Arashida, Ikufumi Katayama, Jun Takeda, and Hidemi Shigekawa
Opt. Lett. 44(21) 5350-5353 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription