Low‐noise heterodyne detection of terahertz waves at room temperature using zero‐biased Fermi‐level managed barrier diode | Zendy

Ito H. | Zendy; Ishibashi T. | Zendy

Open Access

Low‐noise heterodyne detection of terahertz waves at room temperature using zero‐biased Fermi‐level managed barrier diode

Author(s) -

Ito H.,

Ishibashi T.

Publication year - 2018

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2018.5879

Subject(s) - terahertz radiation , heterodyne (poetry) , diode , noise temperature , heterodyne detection , optics , optoelectronics , amplifier , local oscillator , broadband , bandwidth (computing) , physics , materials science , phase noise , telecommunications , laser , acoustics , engineering , cmos

A Fermi‐level managed barrier (FMB) diode was used for the heterodyne detection of terahertz waves for the first time. A quasi‐optical module integrating an FMB diode and a broadband trans‐impedance amplifier exhibited an intermediate frequency bandwidth of 11 GHz. A very low noise‐equivalent‐power of 1.1 × 10 −18 W/Hz was achieved at ∼300 GHz with a very low local oscillator power of 6 × 10 −6 W.

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