[21a-W833-1~12] 11.4 Analog applications and their related technologies

[21a-W833-8] Response Properties of Superconducting Mid-infrared Detectors with Nano-antenna

〇Akira Kawakami¹, Hisashi Shimakage², Junsei Horikawa³, Masaharu Hyodo⁴, Syukichi Tanaka¹ (1.NICT, 2.Ibaraki Univ., 3.Fukui Col., 4.Kanazawa Univ.)

Keywords:mid-infrared,nano-atenna,detector

Prototypes of mid-infrared hot electron bolometer for 60-THz operation formed by a twin-slot-antenna with an NbN strip detector were fabricated. By the irradiation of mid-infrared (λ=4.89 μm), clear polarization dependency caused by antenna effect was observed. The response waveforms consisted of voltage pulses with half width of about 0.3 nanosecond, and it was confirmed a high-speed response properties of the detector