Sensors | |
Novel Ultra-Sensitive Detectors in the 10–50 μm Wavelength Range | |
Takeji Ueda1  | |
[1] CREST, Japan Science and Technology Agency/5 Sambancho, Chiyoda-ku, Yokyo, 102-0075, Japan | |
关键词: terahertz detector; far-infrared detector; ultra-sensitive detector; photon-counter; single-photon detector; charge-sensitive infrared phototransistor (CSIP); | |
DOI : 10.3390/s100908411 | |
来源: mdpi | |
【 摘 要 】
We have developed novel single-photon detectors in the 10–50 μm wavelength region. The detectors are charge-sensitive infrared phototransistors (CSIPs) fabricated in GaAs/AlGaAs double quantum well (QW) structures, in which a photo-generated hole (+e) in the floating gate (upper QW) modulates the conductance of a capacitively-coupled channel located underneath (lower QW). The excellent noise equivalent power (
【 授权许可】
CC BY
© 2010 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
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