Terahertz detection using nanorectifiers

Shahrir Rizal Kasjoo; Ai Min Song

doi:10.1109/LED.2013.2285162

Terahertz detection using nanorectifiers

Shahrir Rizal Kasjoo, Ai Min Song

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Abstract

We report on the lowerature detection of free-space radiation at 1.5 THz using a unipolar nanodiode, known as the self-switching diode (SSD), coupled with a spiral microantenna. The SSD, based on an asymmetric nanochannel, has a diode-like characteristic that can be utilized in rectifying high-frequency electrical signals. The truly planar structure of the SSD not only provides intrinsically low parasitic capacitance that enables rectification at ultrahigh speed, but also allows the fabrication of a large SSD array in parallel without the need for interconnection layers. The extrinsic voltage responsivity of the SSD-based detector achieved was {\sim}{\rm 15.6}~{\rm V}/{\rm W}, but the estimated intrinsic voltage responsivity was {\sim}{\rm 45}~{\rm kV}/{\rm W}. © 2013 IEEE.

Original language	English
Article number	6648666
Pages (from-to)	1554-1556
Number of pages	2
Journal	IEEE Electron Device Letters
Volume	34
Issue number	12
DOIs	https://doi.org/10.1109/LED.2013.2285162
Publication status	Published - Dec 2013

Keywords

Diode
nanotechnology
terahertz (THz) radiation

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Terahertz detection using nanorectifiers

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