Hirotaka TERAI


Planarized Nb 4-Layer Fabrication Process for Superconducting Integrated Circuits and Its Fabricated Device Evaluation
Shuichi NAGASAWA Masamitsu TANAKA Naoki TAKEUCHI Yuki YAMANASHI Shigeyuki MIYAJIMA Fumihiro CHINA Taiki YAMAE Koki YAMAZAKI Yuta SOMEI Naonori SEGA Yoshinao MIZUGAKI Hiroaki MYOREN Hirotaka TERAI Mutsuo HIDAKA Nobuyuki YOSHIKAWA Akira FUJIMAKI 
Publication:   
Publication Date: 2021/09/01
Vol. E104-C  No. 9  pp. 435-445
Type of Manuscript:  Special Section PAPER (Special Section on Fabrication of Superconductor Devices; Key Technology in Superconductor Electronics)
Category: 
Keyword: 
superconducting fabrication technologyNb/AlOx/Nb Josephson junctioncaldera planarizationmulti-layer structuresingle-flux quantum logicadiabatic quantum flux parametron logiccell-based designdiagnostic shift-registers
 Summary | Full Text:PDF(4MB)

Development of Superconducting Devices Supporting Radio Astronomy
Yoshinori UZAWA Matthias KROUG Takafumi KOJIMA Masanori TAKEDA Kazumasa MAKISE Shohei EZAKI Wenlei SHAN Akihira MIYACHI Yasunori FUJII Hirotaka TERAI 
Publication:   
Publication Date: 2021/09/01
Vol. E104-C  No. 9  pp. 411-421
Type of Manuscript:  INVITED PAPER (Special Section on Fabrication of Superconductor Devices; Key Technology in Superconductor Electronics)
Category: 
Keyword: 
radio astronomySIS mixersALMA Band 10widebandmultibeam
 Summary | Full Text:PDF(2MB)

Development and Evaluation of Superconducting Nanowire Single-Photon Detectors for 900-1100 nm Photon Detection
Fumihiro CHINA Shigehito MIKI Masahiro YABUNO Taro YAMASHITA Hirotaka TERAI 
Publication:   
Publication Date: 2020/05/01
Vol. E103-C  No. 5  pp. 212-215
Type of Manuscript:  BRIEF PAPER
Category: Superconducting Electronics
Keyword: 
superconductivitysingle-photon detectorsSSPDdielectric multilayer
 Summary | Full Text:PDF(641.5KB)

Recent Progress and Application of Superconducting Nanowire Single-Photon Detectors
Taro YAMASHITA Shigehito MIKI Hirotaka TERAI 
Publication:   
Publication Date: 2017/03/01
Vol. E100-C  No. 3  pp. 274-282
Type of Manuscript:  INVITED PAPER (Special Section on Leading-Edge Technologies of Superconducting Measurement Systems)
Category: 
Keyword: 
superconductivitysingle-photon detectorquantum informationquantum opticsoptical communicationlife science
 Summary | Full Text:PDF(1.5MB)

Low-Energy Optical-to-Electrical Converters Based on Superconducting Nanowire for Single-Flux-Quantum Circuits
Kemmei KAJINO Shigehito MIKI Taro YAMASHITA Hirotaka TERAI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/03/01
Vol. E98-C  No. 3  pp. 227-231
Type of Manuscript:  INVITED PAPER (Special Section on Leading-Edge Applications and Fundamentals of Superconducting Sensors and Detectors)
Category: 
Keyword: 
superconductorsingle photon detectorsingle-flux-quantum circuitoptical interfacecryocooler implementation
 Summary | Full Text:PDF(1.7MB)

Development of Passive Interconnection Technology for SFQ Circuits
Yoshihito HASHIMOTO Shinichi YOROZU Yoshio KAMEDA Akira FUJIMAKI Hirotaka TERAI Nobuyuki YOSHIKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/02/01
Vol. E88-C  No. 2  pp. 198-207
Type of Manuscript:  INVITED PAPER (Special Section on Superconducting Electronic Devices and Their Applications)
Category: 
Keyword: 
SFQintegrated circuitinterconnectionsuperconductorpassive transmission line
 Summary | Full Text:PDF(1.9MB)

All-NbN Single Flux Quantum Circuits Based on NbN/AlN/NbN Tunnel Junctions
Hirotaka TERAI Zhen WANG 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/01/25
Vol. E83-C  No. 1  pp. 69-74
Type of Manuscript:  Special Section PAPER (Special Issue on Superconductive Devices and Systems)
Category: Digital Applications
Keyword: 
NbN integrated circuitNbN/AlN/NbN tunnel junctionoverdumped junctionsheet inductanceSFQ circuitoperating margin
 Summary | Full Text:PDF(1.2MB)

A High-Tc Superconductor Josephson Sampler
Mutsuo HIDAKA Tetsuro SATOH Hirotaka TERAI Shuichi TAHARA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/10/25
Vol. E80-C  No. 10  pp. 1226-1232
Type of Manuscript:  INVITED PAPER (Special Issue on Basic Properties and Applications of Superconductive Electron Devices)
Category: 
Keyword: 
high-Tc superconductorramp-edge junctionsamplerintegrated circuitgroundplane
 Summary | Full Text:PDF(604.9KB)