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High repetition rate femtosecond VIS radiation is normally generated in optical parametric oscillators (OPOs) either by generating VIS light via intra-cavity SHG or SFG [1, 2] or in VIS OPOs employing Ti:sa as a pump laser [3, 4]. Recently we demonstrated an efficient intra-cavity SFG in a non-collinear OPO (NOPO) pumped by thin disk oscillator [5]. Here, we present a NOPO system, pumped by the high...
The reliable availability of energetic and very short pulses in the femtosecond regime triggered innumerable developments in research and application in physics, chemistry, and life sciences. Now, a new and superior technology reached maturity in research labs during the last decade, the few-cycle optical parametric chirped-pulse amplifier (OPCPA). The concept is advantageous against Ti:sapphire technology...
Optical parametric oscillators offer significant advantages over solid-state laser systems in terms of their wavelength versatility as well as in their tuning bandwidth and speed. However, these systems are complex to use and their output power is often limited to a few hundred mW, especially when using a Ti: sapphire laser as a pump source. Recently, a high power, ultrabroadband non-collinear optical...
We present a compact HHG source driven by a few-cycle, few μJ, 200 kHz OPCPA system. Efficient harmonics are generated from Neon, Argon and Krypton with conversion efficiency of 4.0×10−8, 1.2×10−6 and 4.1×10−6, respectively.
We study high-order harmonic generation with a high-repetition rate (200 kHz), few-cycle, driving laser, based on optical parametric chirped pulse amplification. The system delivers carrier-envelope phase stable, 8 fs, 10 μ J pulses at a central wavelength of 890 nm. High-order harmonics, generated in a high-pressure Ar gas jet, exhibit a strong CEP-dependence over a large spectral...
We present the carrier-envelope phase dependent high-order harmonic generation in argon at 200 kHz repetition rate using ultra-short laser pulses from an optical parametric chirped pulse amplifier.
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