[HTML][HTML] Fast response of superconducting hot-electron bolometers with a twin-slot nano-antenna for mid-infrared operation

A Kawakami, H Shimakage, J Horikawa, M Hyodo… - AIP Advances, 2016 - pubs.aip.org
In this study, the use of nano-antennas to improve the response performance of infrared
detectors is proposed, and the design and fabrication of antennas that operate in the
infrared range is demonstrated. Prototypes of a mid-infrared superconducting hot-electron
bolometer (HEB) formed by a twin-slot antenna with a niobium nitride strip were fabricated.
When the bolometer was irradiated with mid-infrared (λ= 4.89 μm) pulsed light, responses
with clear polarization dependency were observed. When the HEB was biased close to the …
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