Few-cycle, µJ-level pulses beyond 5 µm from 1-µm-pumped OPA's based on non-oxide nonlinear crystals

Zsuzsanna Heiner; Valentin Petrov; Mark Mero

doi:10.1117/12.2585166

5 March 2021 Few-cycle, μJ-level pulses beyond 5 μm from 1-μm-pumped OPA's based on non-oxide nonlinear crystals

Zsuzsanna Heiner, Valentin Petrov, Mark Mero

Proceedings Volume 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX; 116700W (2021) https://doi.org/10.1117/12.2585166
Event: SPIE LASE, 2021, Online Only

Abstract

Nonlinear vibrational and strong-field spectroscopies can tremendously benefit from high-power few-cycle mid-infrared (MIR) laser pulses beyond 5 μm at repetition rates << 10 kHz. Here, we explore the potential of a novel non-oxide crystal, BaGa₄S₇ (BGS), for the direct coverage of the MIR beyond 5 µm starting from Yb-laser sources and report on a μJ-scale, sub-4-cycle, 100-kHz optical parametric amplifier (OPA) at 10 μm. We compare BGS with LiGaS₂ (LGS) with respect to performance in ultrafast MIR OPAs. The unique properties of BGS indicate great potential for nonlinear optical applications, especially due to the much faster development of its manufacturing processes and the larger achievable single-crystal sizes compared to LGS.

Conference Presentation

Citation Download Citation

Zsuzsanna Heiner, Valentin Petrov, and Mark Mero "Few-cycle, μJ-level pulses beyond 5 μm from 1-μm-pumped OPA's based on non-oxide nonlinear crystals", Proc. SPIE 11670, Nonlinear Frequency Generation and Conversion: Materials and Devices XX, 116700W (5 March 2021); https://doi.org/10.1117/12.2585166

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