Single-photon detection of THz-waves usi
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S Komiyama; O Astafiev; V Antonov; T Kutsuwa
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Article
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2002
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Elsevier Science
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English
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We demonstrate two mechanisms of single photon detection in the THz spectral region by using gate-voltageinduced lateral GaAs /AlGaAs quantum dots (QDs). Firstly, a QD in strong magnetic fields (B 5 3-4 T) is operated as a single electron transistor (SETs). THz-photons (1.8-1.5 THz) excite the QD vi