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Generation of tunable far-infrared radiation with a quantum cascade laser

Gianluca Gagliardi, Silvia Viciani, Massimo Inguscio, Paolo De Natale, Claire Gmachl, Federico Capasso, Deborah L. Sivco, James N. Baillargeon, Albert L. Hutchinson, and Alfred Y. Cho

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Abstract

We demonstrate the generation of cw tunable far-infrared radiation by mixing a quantum cascade laser and a CO2 laser in a W–Ni metal–insulator–metal diode. The first known spectroscopic application to the recording of an H79Br transition near 4.47 THz is reported.

© 2002 Optical Society of America

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