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arXiv · 1911.06582

Thermoelectrically cooled THz quantum cascade laser operating up to 210 K

Lorenzo Bosco·Martin Franckié·Giacomo Scalari·Mattias Beck·Andreas Wacker·Jérôme Faist
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Abstract

We present a \MF{terahertz} quantum cascade laser operating on a thermoelectric cooler up to a record-high temperature of 210.5 K. The active region design is based on only two quantum wells and achieves high temperature operation thanks to a systematic optimization by means of a nonequilibrium Green's function model. Laser spectra were measured with a room temperature detector, making the whole setup cryogenic free. At low temperatures ($\sim 40 K), a maximum output power of 200 mW was measured.

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Lorenzo Bosco, Martin Franckié, Giacomo Scalari, Mattias Beck, Andreas Wacker, Jérôme Faist. 2019-11-15. Thermoelectrically cooled THz quantum cascade laser operating up to 210 K. https://doi.org/10.1063/1.5110305

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