Surface-enhanced high-harmonic generation: a promising approach for extreme ultraviolet frequency combs
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Updated: Jul 1, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Jian Wu1, Hongxing Qi, Heping Zeng
1State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai, China. jwu@phy.ecnu.edu.cn
Abstract:
We propose a promising scheme to produce extreme ultraviolet frequency combs through high-harmonic generation with a surface-enhanced optical field. High harmonics are generated in a wavelength-scale spatial region and show a noticeable emission probability at an angle around 10 degrees relative to the surface. This can be further controlled with an additional static electric field or polarization-gated scheme, leading to enhanced energy conversion efficiency and extra even-order harmonic generation.
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