A nonrotating liquid mirror for astronomical telescopes

Details A nonrotating liquid mirror for astronomical telescopes A nonrotating liquid mirror for astronomical telescopes

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987pasp...99.1371b&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 99, Dec. 1987, p. 1371-1376. NSERC-supported research.

Physics

Optics

2

Gradient Index Optics, Mercury (Metal), Metal Films, Refracting Telescopes, Rotating Mirrors, Chemical Composition, Parameter Identification, Research And Development

Scientific paper

The author describes a new type of nonrotating liquid mirror based on GRIN (gradient index) optics. The mirror consists of a container at rest having a thin layer of mercury covered with a transparent liquid in which one has introduced a radial dependence of the index of refraction. This system can focus light like a mirror. The author considers a simple radial index dependence and some of the mechanisms that could be used to set up the index gradient. If working systems can be built, this type of mirror should have essentially no size limit and may be used to build optical telescopes having truly gigantic dimensions (hundreds of meters in diameter).

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