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7 September 2011 Quantum-dot based nonlinear source of THz radiation
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Abstract
We discuss the generation of THz radiation at room temperature by the exploitation of a nonlinear optical process taking place in a high quality factor AlGaAs microcavity. The approach is grounded on 1) a novel quasi-phase-matching scheme for parametric processes involving whispering-gallery modes circulating in nonlinear microcylinders; and 2) recent advances concerning quantum dots microcylindrical lasers. After a brief summary of the theory used to describe the nonlinear process, we present the results of our modeling in the case of a passive device pumped by two lasers at wavelengths close to 1.3 μm. Finally, we conclude with preliminary measurements performed with a tapered fiber.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Andronico, J. Claudon, M. Munsch, I. Favero, S. Ducci, J. M. Gérard, and G. Leo "Quantum-dot based nonlinear source of THz radiation", Proc. SPIE 8119, Terahertz Emitters, Receivers, and Applications II, 81190C (7 September 2011); https://doi.org/10.1117/12.901202
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