Title :
Microwave property and optical response of MKIDs using NbN symmetrical spiral resonator array
Author :
Saito, Akihiro ; Hayashi, K. ; Nakajima, Kensuke ; Ariyoshi, Seiichiro ; Ogawa, Y. ; Yamada, Hiroyoshi ; Taino, Tohru ; Tanoue, Hiroshi ; Otani, C. ; Bae, Joonbum ; Ohshima, Shigetoshi
Author_Institution :
Yamagata Univ., Yonezawa, Japan
Abstract :
We investigated the microwave properties and optical responses of the microwave kinetic inductance detectors (MKIDs) using niobium nitride (NbN) symmetric spiral resonator array for Fourier transform terahertz spectrometer. The 9-arrays MKIDs were designed around 4.7 GHz and fabricated using the NbN thin film deposited on the m-sapphire substrate. The microwave responses of the 9-arrays MKIDs were measured using a low-noise amplifier and a vector network analyzer. We observed nine half-wavelength resonances around 4.7 GHz at 4.2 K. The frequency shifts of the resonances were also observed by an optical irradiation.
Keywords :
Fourier transform spectrometers; low noise amplifiers; microwave detectors; microwave measurement; microwave resonators; network analysers; niobium compounds; sapphire; sensor arrays; terahertz spectroscopy; thin film sensors; type II superconductors; Al2O3; Fourier transform terahertz spectrometer; MKID; NbN; NbN thin film deposition; frequency shift; half wavelength resonance; low noise amplifier; m-sapphire substrate; microwave kinetic inductance detector; microwave response measurement; optical irradiation; optical response; symmetrical spiral resonator array; temperature 4.2 K; vector network analyzer; Microwave amplifiers; Optical amplifiers; Optical attenuators; Optical device fabrication; Optical films; Optical resonators; Resonant frequency;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665790
