Raman injection laser

Mariano Troccoli (), Alexey Belyanin (), Federico Capasso, Ertugrul Cubukcu, Deborah L. Sivco and Alfred Y. Cho
Additional contact information
Mariano Troccoli: Harvard University
Alexey Belyanin: Texas A&M University
Federico Capasso: Harvard University
Ertugrul Cubukcu: Harvard University
Deborah L. Sivco: Lucent Technologies
Alfred Y. Cho: Lucent Technologies

Nature, 2005, vol. 433, issue 7028, 845-848

Abstract: Raman lasers: think electric The Raman effect, in which a material shifts the wavelength of an incident light beam by absorbing part of the photon's energy, has found widespread use as a powerful diagnostic tool in chemistry and materials science. Raman lasers that are currently available, used in applications such as spectroscopy and microscopy, have only a small gain (or signal amplification) and require external pumping with powerful optical lasers. A new electrically driven semiconductor laser described in this issue uses the Raman effect to shift the wavelength of an internally Raman effect to shift the wavelength of an internally generated optical beam. This low-power compact Raman laser functions through most of the infrared wavelengths, and holds promise for extending the tunability, available range and applications of semiconductor lasers.

Date: 2005
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DOI: 10.1038/nature03330

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