Using intracavity high-harmonic generation, this research reveals absorption at 210 nm in acetylene, highlighting dual-comb capabilities.
Intracavity high harmonic generation is used to produce a dual-comb source extending into the vacuum ultraviolet using the 3 rd , 5 th , and 7 th harmonics. An initial high-resolution absorption measurement is performed on acetylene at 210 nm.
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McCauley et al. (2025) studied this question.
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