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

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

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Abstract

The generation of continuous wave (CW) tunable far infrared (FIR) radiation by mixing a quantum cascade laser (QCL) and a carbon dioxide laser in a W-Ni metal insulator metal diode was demonstrated. It was also demonstrated that the radiation could be used for spectroscopy by recording the J=8→9 rotational line of H 79Br. The FIR power generated by using two gas lasers was compared to the set up with the QCL. First-derivative line shapes were obtained by adding a sinusoidal signal at 1.1 kHz to the current ramp.

Original languageEnglish (US)
Pages (from-to)521-523
Number of pages3
JournalOptics Letters
Volume27
Issue number7
DOIs
StatePublished - Apr 1 2002

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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    Gagliardi, G., Viciani, S., Inguscio, M., De Natale, P., Gmachl, C. F., Capasso, F., Sivco, D. L., Baillargeon, J. N., Hutchinson, A. L., & Cho, A. Y. (2002). Generation of tunable far-infrared radiation with a quantum cascade laser. Optics Letters, 27(7), 521-523. https://doi.org/10.1364/OL.27.000521