2013 IEEE 14th International Superconductive Electronics Conference (ISEC)最新文献_第2页

Demonstration of an 8×8-bit RSFQ multi-port register file 演示了一个8×8-bit RSFQ多端口寄存器文件

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604257

A. Kirichenko, A. Sahu, T. Filippov, O. Mukhanov, Andriy V. Dotsenko, M. Dorojevets, A. K. Kasperek

引用次数: 11

Full characterization of optical Transition-Edge Sensor by impedance spectroscopy measurements in a bandwidth extending to 1 MHz 在带宽延伸至1mhz的情况下，通过阻抗光谱测量全面表征光学过渡边缘传感器

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604291

E. Taralli, L. Lolli, E. Monticone, M. Rajteri, L. Callegaro, T. Numata, D. Fukuda

{"title":"Full characterization of optical Transition-Edge Sensor by impedance spectroscopy measurements in a bandwidth extending to 1 MHz","authors":"E. Taralli, L. Lolli, E. Monticone, M. Rajteri, L. Callegaro, T. Numata, D. Fukuda","doi":"10.1109/ISEC.2013.6604291","DOIUrl":"https://doi.org/10.1109/ISEC.2013.6604291","url":null,"abstract":"Transition-Edge Sensors (TESs) are the most promising devices as single photon detectors in the visible and infrared range. In particular ultra-fast TESs with few hundred ns response time and high quantum efficiency find application in different fields like quantum optics, quantum metrology and quantum information. The full characterization of such detectors from thermal, electrical and optical point of view is not so simple, because only some parameters are directly measurable. There are several works where various models and set of measurements are proposed to describe X- and γ-ray TES, devices with response time in the order of 100 μs. In this work, we analyze ultra-fast TES (10 μm × 10 μm area and 34 nm thick) combining for the first time TES bias curves, measurements of complex impedance, and noise measurements. In particular we perform complex impedance measurements up to 1 MHz. All the obtained results are explained using the simplest calorimeter thermal model, that is suitable for TES without external absorber.","PeriodicalId":233581,"journal":{"name":"2013 IEEE 14th International Superconductive Electronics Conference (ISEC)","volume":"608 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131735044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Advanced sensors for scanning SQUID microscopy 先进的传感器扫描鱿鱼显微镜

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604261

J. Kirtley, G. W. Gibson, Y.-K.-K. Fung, B. Klopfer, K. Nowack, P. Kratz, Jan-Michael Mol, J. Arpes, F. Forooghi, M. Huber, H. Bluhm, K. Moler

{"title":"Advanced sensors for scanning SQUID microscopy","authors":"J. Kirtley, G. W. Gibson, Y.-K.-K. Fung, B. Klopfer, K. Nowack, P. Kratz, Jan-Michael Mol, J. Arpes, F. Forooghi, M. Huber, H. Bluhm, K. Moler","doi":"10.1109/ISEC.2013.6604261","DOIUrl":"https://doi.org/10.1109/ISEC.2013.6604261","url":null,"abstract":"As part of a joint Stanford/IBM effort to build a scanning SQUID microscopy user facility at Stanford, we have designed and fabricated three types of scanning SQUID microscope sensors. The first is a SQUID susceptometer, with a symmetric, gradiometric design, pickup loops with 0.1 micrometer minimum feature size integrated into the SQUID body through coaxially shielded leads, integrated flux modulation coils, and counterwound one-turn field coils. The second is a SQUID sampler, in which a picosecond current pulse generated on chip is inductively coupled into a hysteric scanning SQUID sensor. The feedback flux to keep the average SQUID voltage at a constant value is proportional to the flux through the sensor pickup loop at a fixed time delay. JSPICE simulations indicate that time resolutions below 10 picosec can be obtained. The third type is a dispersive SQUID, in which the capacitance and Josephson inductance of a one-junction SQUID are chosen so it has an LC resonance in the GHz range. The Josephson inductance depends on the magnetic flux through the SQUID. The magnetic flux is sensed through phase shifts in the reflected microwave signals at resonance. Calculations indicate spin sensitivities better than 1 Bohr magneton per root Hz for a 0.3 micrometer pickup loop diameter, with bandwidths of about 100 MHz possible.","PeriodicalId":233581,"journal":{"name":"2013 IEEE 14th International Superconductive Electronics Conference (ISEC)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134191312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Properties of individual YBCO layers in a two-layered design for energy-efficient digital data cables 节能数字数据电缆两层设计中各YBCO层的特性

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604282

A. Yonamine, D. I. dos Santos, A. Pan, S. Fedoseev, David Oakden, B. Parsons, O. Shcherbakova, I. Golovchanskiy, N. Masilamani, R. Webber, O. Mukhanov

{"title":"Properties of individual YBCO layers in a two-layered design for energy-efficient digital data cables","authors":"A. Yonamine, D. I. dos Santos, A. Pan, S. Fedoseev, David Oakden, B. Parsons, O. Shcherbakova, I. Golovchanskiy, N. Masilamani, R. Webber, O. Mukhanov","doi":"10.1109/ISEC.2013.6604282","DOIUrl":"https://doi.org/10.1109/ISEC.2013.6604282","url":null,"abstract":"We are developing two-layered Yttrium Barium Copper Oxide (YBCO) thin film structures for energy efficient data links for superconducting electronics and present the results of their property measurements. High temperature superconductors (HTS) are advantageous for the implementation of energy-efficient cables interconnecting low temperature superconductor-based circuits and other cryogenic electronics circuits at higher temperature stages. The advantages of the HTS cables come from their low loss and low dispersion properties, allowing ballistic transfer of low power signals with very high bandwidth, low heat conduction and negligible inter-line crosstalk. The microstrip line cable geometry for typical materials is a two-layered film, in which the two superconducting layers are separated by an insulation layer with a minimized permittivity. We have made a proof of concept design of two YBCO films grown by pulsed laser deposition and then assembled into a sandwich with uniform insulating interlayer of tens of micrometers thick. We report on results obtained from such systems assembled in different ways. Structural and electromagnetic properties have been examined on individual films and on the corresponding sandwich composite.","PeriodicalId":233581,"journal":{"name":"2013 IEEE 14th International Superconductive Electronics Conference (ISEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114739898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Demonstration of fully functional 64-kb Josephson/CMOS hybrid memory 全功能64kb约瑟夫森/CMOS混合存储器的演示

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604267

X. Peng, Y. Sasaki, Hyunjoo Jin, K. Kuwabara, Y. Yamanashi, N. Yoshikawa

引用次数: 1

Magnetic nanoparticle imaging using cooled-Cu/HTS-superconductor pickup coils 利用冷却铜/高温超导拾取线圈的磁性纳米粒子成像

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604312

T. Morishige, T. Mihaya, T. Miyazai, T. Yoshida, M. Matsuo, K. Enpuku

引用次数: 1

Photon-counting optical time-domain reflectometry with superconducting nanowire single-photon detectors 超导纳米线单光子探测器的光子计数光学时域反射测量

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604287

Qingyuan Zhao, Junhui Hu, Xuping Zhang, La-bao Zhang, T. Jia, L. Kang, Jing Chen, Peiheng Wu

引用次数: 9

Development of high quality superconducting resonators for quantum device applications 用于量子器件的高质量超导谐振器的发展

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604285

Dong-Gwang Ha, S. Kim, So-Yeon Jun, S. Shim, Woon Song, J. Park, Jiman Choi, Y. Chong

{"title":"Development of high quality superconducting resonators for quantum device applications","authors":"Dong-Gwang Ha, S. Kim, So-Yeon Jun, S. Shim, Woon Song, J. Park, Jiman Choi, Y. Chong","doi":"10.1109/ISEC.2013.6604285","DOIUrl":"https://doi.org/10.1109/ISEC.2013.6604285","url":null,"abstract":"We report our development on design, fabrication and characterization of various superconducting resonators for quantum device applications. The resonators are developed mainly for superconducting qubit implementation in circuit QED structure, but future application will include photon detectors such as microwave kinetic inductance detectors. First we designed and fabricated half-wavelength coplanar waveguide resonators with niobium thin film on a high resistive silicon wafer, with the fundamental frequencies in the range of 1 to 8 GHz. The loaded quality factors are controlled by the coupling capacitors, and the lower bound of the intrinsic quality factor was measured down to 7 mK in the dilution refrigerator. We have also designed quarter-wavelength resonators and lumped LC resonators coupled to a transmission line, and characterized multiple resonators in a single transmission line. For the 3D transmon qubit application, we designed and fabricated a rectangular box resonator with superconducting aluminum. The intrinsic quality factor of the box resonator exceeds three million at 7 mK. We will also present basic results on the integration of a transmon qubit in the superconducting resonator.","PeriodicalId":233581,"journal":{"name":"2013 IEEE 14th International Superconductive Electronics Conference (ISEC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117185148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth and characterization of Nb films and Nb/Al-AlOx/Nb trilayers for Josephson junctions 约瑟夫森结用Nb膜和Nb/Al-AlOx/Nb三层膜的生长和表征

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604315

X. Kang, Liliang Ying, Guofeng Zhang, Huiwu Wang, X. Kong, W. Peng, Xiaoming Xie

引用次数: 1

Slow-wave analysis of spiral resonators 螺旋谐振器的慢波分析

2013 IEEE 14th International Superconductive Electronics Conference (ISEC) Pub Date : 2013-07-07 DOI: 10.1109/ISEC.2013.6604295

J. Hooker, R. Arora, W. Brey, V. Ramaswamy, A. Edison, R. Nast, R. Withers

{"title":"Slow-wave analysis of spiral resonators","authors":"J. Hooker, R. Arora, W. Brey, V. Ramaswamy, A. Edison, R. Nast, R. Withers","doi":"10.1109/ISEC.2013.6604295","DOIUrl":"https://doi.org/10.1109/ISEC.2013.6604295","url":null,"abstract":"Nuclear magnetic resonance (NMR) probes constructed using High Temperature Superconducting (HTS) materials have been proven to achieve higher sensitivities than conventional probes which use cold normal metal. The high sensitivity is due to the high Q-values possible with HTS materials. Planar multi-turn spiral resonators are extremely useful as low frequency transmit-receive coils (60 - 150 MHz) in such probes. However, these spirals have higher order modes which can interfere with the performance of other coils in the probe. These modes might be expected to occur at integer multiples of the fundamental resonance. Our simulations and experiments show that the resonance frequencies of planar spirals are generally linear with respect to the mode number; however the spacing between the modes is generally not equal to the fundamental frequency. Knowing just the mode number and resonance frequencies of two modes, we can predict the entire spectrum. The “sheath-helix” model approximates propagation on a solenoid by assuming that the wave travels down the axis of the solenoid instead of along the wires. We find that similarly treating the spiral as a slow-wave structure carrying a wave traveling radially outward provides an alternative for predicting the current distribution null and peak locations. While the resonant frequencies of the modes are attainable through simulation, analysis of this nature can lead to insights which accelerate the design process. A better understanding of planar spiral resonators will have a wide reaching impact because of their utility in varied applications.","PeriodicalId":233581,"journal":{"name":"2013 IEEE 14th International Superconductive Electronics Conference (ISEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123543419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0