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Science 15 August 1997:
Vol. 277. no. 5328, pp. 899 - 900
DOI: 10.1126/science.277.5328.899
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Research News

PHYSICS:
Microwaves Steal the Blush From Ruby

Charles Seife

Rubies are red, and they usually stay that way. But a team of electrical engineers made rubies slightly more transparent with a technique called electromagnetically induced transparency. Never before demonstrated in a solid, the technique uses a microwave field to put a lock on the electrons that normally absorb light, a feat that could lead to switches for optical computers and lower powered lasers.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)