220 nm deep-UV coherent source based on fifth-harmonic generation in ADP and DKDP crystals
نویسندگان
چکیده
Based on the 1.1 μm laser radiation obtained by parametrically amplifying Yb:YAG using frequency doubling of Nd:YAG laser, a 220 nm deep-UV coherent source was systematically presented via efficient fifth-harmonic generation (FiHG) in NH4H2PO4 (ADP) and KD2PO4 (DKDP) crystals. In ADP crystals, noncritical phase-matching (NCPM) fourth-harmonic (FHG) FiHG were realized at 109.4 31.6 °C, respectively. For DKDP we demonstrated critical FHG 57.5 °C verified that NCPM can be achieved 38.7 which first demonstration crystal to our knowledge. The energy-dependent conversion efficiencies, angular acceptances, temperature acceptances these nonlinear processes measured. highest total efficiencies from fifth harmonic crystals 17.5% 23.6%, Owing large-aperture availability KDP-family this work paves way for application high-energy high-peak-power radiation.
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2022
ISSN: ['2158-3226']
DOI: https://doi.org/10.1063/5.0124017