McKee T J, Stoicheff B P, Wallace S C
Opt Lett. 1978 Dec 1;3(6):207-8. doi: 10.1364/ol.3.000207.
Tunable, coherent vacuum-ultraviolet (VUV) radiation has been produced in the 1210-1290-A region by four-wave sum mixing in magnesium vapor. This important extension of the wavelength range of tunable radiation was achieved using KrF-laser-pumped uv dye lasers, whose sum frequency then directly overlapped the first odd-parity autoionizing state in magnesium. With powers of 10 kW in the fundamental dye-laser beams, a flux >/=10(8) photons per pulse was produced at Lyman-alpha, with higher intensities at the longer wavelengths.
通过在镁蒸气中进行四波和频混频，在1210 - 1290埃区域产生了可调谐的相干真空紫外（VUV）辐射。利用氪氟激光泵浦的紫外染料激光器实现了可调谐辐射波长范围的这一重要扩展，其和频随后直接与镁中的第一奇宇称自电离态重叠。在基频染料激光束功率为10千瓦的情况下，在莱曼α处产生了每脉冲通量≥10⁸个光子，在较长波长处强度更高。
