Abstract

The lateral chromatic aberration from a LiF lens, which is positioned off-axis with respect to the incident light beams, is used to isolate the VUV light generated by the four-wavemixing technique from the intense pump light. The transmittance of the monochromator at the VUV wavelength is limited by the transmittance of a single lens. The ratio of transmitted-to-incident pump energy is 3.3 × 10⁻⁶. A single monochromator with two interchangeable lenses can be used for either tightly focused or collimated pump beams.

© 1988 Optical Society of America

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