title: Carrier-envelope-phase-stable, 1.2 mJ, 1.5 cycle laser pulses at 2.1 μm.
abstract: We produce 1.5 cycle (10.5 fs), 1.2 mJ, 3 kHz carrier-envelope-phase-stable pulses at 2.1 μm carrier wavelength, from a three-stage optical parametric chirped-pulse amplifier system, pumped by an optically synchronized 1.6 ps Yb:YAG thin disk laser. A chirped periodically poled lithium niobate crystal is used to generate the ultrabroad spectrum needed for a 1.5 cycle pulse through difference frequency mixing of spectrally broadened pulse from a Ti:sapphire amplifier. It will be an ideal tool for producing isolated attosecond pulses with high photon energies.
authors.affiliation: Max-Planck-Institut für Quantenoptik, Garching 85748, Germany. yunpei.deng@mpq.mpg.de
authors.forename: Yunpei
authors.initials: Y
authors.lastname: Deng
authors.forename: Alexander
authors.initials: A
authors.lastname: Schwarz
authors.forename: Hanieh
authors.initials: H
authors.lastname: Fattahi
authors.forename: Moritz
authors.initials: M
authors.lastname: Ueffing
authors.forename: Xun
authors.initials: X
authors.lastname: Gu
authors.forename: Marcus
authors.initials: M
authors.lastname: Ossiander
authors.forename: Thomas
authors.initials: T
authors.lastname: Metzger
authors.forename: Volodymyr
authors.initials: V
authors.lastname: Pervak
authors.forename: Hideki
authors.initials: H
authors.lastname: Ishizuki
authors.forename: Takunori
authors.initials: T
authors.lastname: Taira
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Gilad
authors.initials: G
authors.lastname: Marcus
authors.forename: Ferenc
authors.initials: F
authors.lastname: Krausz
authors.forename: Reinhard
authors.initials: R
authors.lastname: Kienberger
authors.forename: Nicholas
authors.initials: N
authors.lastname: Karpowicz