Abstract
We report on the energy scaling and coherent waveform synthesis of a carrier-envelope phase (CEP)-stable, few-cycle, kHz-repetition-rate optical parametric chirped-pulse amplifiers (OPCPAs) for high-field physics applications. First, amplification of ultrabroadband \(2.1\mbox{ -}\mu \mathrm{m}\) pulses to 0.85 mJ is demonstrated using a novel high-energy, ps, cryogenic Yb:YAG pump laser. Pulse compression to 4.5 optical cycles has been achieved. Initial high-harmonic generation (HHG) experiments with Xe have shown a significant cutoff extension to \(>85\,\mathrm{eV}\). Second, we have coherently synthesized the \(2.1\mbox{ -}\mu \mathrm{m}\) pulse with a CEP-stable, few-cycle near-infrared OPCPA pulse seeded by the same laser oscillator and generated a \(15\mbox{ -}\mu \mathrm{J}\) sub-cycle waveform. Simulations confirm that this waveform is suitable for isolated attosecond pulse generation. The pulse synthesis method can be extended to a novel energy-scalable wavelength multiplexing scheme based on multi-color OPCPAs.
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© 2012 Springer-Verlag Berlin Heidelberg
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Hong, KH. et al. (2012). CEP-Stable, Few-Cycle, kHz OPCPAs for Attosecond Science: Energy Scaling and Coherent Sub-Cycle Pulse Synthesis. In: Yamanouchi, K., Katsumi, M. (eds) Multiphoton Processes and Attosecond Physics. Springer Proceedings in Physics, vol 125. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28948-4_5
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DOI: https://doi.org/10.1007/978-3-642-28948-4_5
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