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News and Views
Nature 453, 459-460 (22 May 2008) | doi:10.1038/453459a; Published online 21 May 2008
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Laser technology: Over the rainbow
John M. Lupton1
Abstract
Many laser diodes provide light in only a limited range of the visible spectrum. A hybrid laser made out of plastic, driven by a high-power light-emitting diode, looks to offer a more flexible approach.
In the early days of semiconductor lasers, the choice of wavelengths was reminiscent of a famous Monty Python skit: it was a case of spam, spam or spam. The spectrum of available colours has since expanded impressively, but large gaps still exist, particularly at yellow wavelengths.
- John M. Lupton is in the Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA.
Email: lupton@physics.utah.edu
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