Necklace-structured High-Harmonic Generation for Low-Divergence, Soft X-Ray Harmonic Combs with Tunable Line Spacing.
Science advances(2022)
摘要
By driving high-harmonics with necklace laser beams, we produce combs with tunable frequency content and spacing, up to the soft x-ray region. The emitted harmonics also exhibit distinct spatial profiles and lower divergence than Gaussian-driven harmonics.
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关键词
necklace laser,tunable frequency content,X-ray region,emitted harmonics,lower divergence,Gaussian-driven harmonics,necklace high harmonic generation,low-divergence,soft X-ray harmonic combs,tunable line spacing,high-harmonics
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