Microwave reflection imaging using a magnetic tunnel junction based spintronic microwave sensor

被引：17

作者：

Fu, L. ^{[1
,2
]}

Cao, Z. X. ^{[1
,2
]}

Hemour, S. ^{[3
]}

Wu, K. ^{[3
]}

Houssameddine, D. ^{[4
]}

Lu, W. ^{[2
]}

Pistorius, S. ^{[1
]}

Gui, Y. S. ^{[1
]}

Hu, C. -M. ^{[1
]}

机构：

[1] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada

[2] Chinese Acad Sci, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China

[3] Ecole Polytech Montral, Montreal, PQ H3T 1J4, Canada

[4] Everspin Technol, Chandler, AZ 85224 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 23期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Electric rectifiers - Tunnel junctions - Microwaves - Object detection - Magnetic devices;

D O I：

10.1063/1.4769837

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A far-field microwave imaging technique has been developed using a spintronic sensor based on a magnetic tunnel junction (MTJ). Such a sensor can directly rectify a microwave field into a dc voltage signal using the Seebeck effect. Thanks to the high conversion efficiency of the microwave rectification in MTJs, the microwave power sensitivity of the spintronic sensor is on the order of 1-10mV/mW. This high sensitivity allows the sensor to directly measure the coherent spatial scattered microwave field distribution, which gives it the ability to non-destructively detect hidden objects down to a few wavelengths in size. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769837]

引用

页数：4

共 23 条

[1]

Ahlbom A, 1998, HEALTH PHYS, V74, P494

[2] Near-Field Microwave Imaging Based on Aperture Raster Scanning With TEM Horn Antennas [J].

Amineh, Reza K. ;

Ravan, Maryam ;

Trehan, Aastha ;

Nikolova, Natalia K. .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2011, 59 (03) :928-940

[3] The rf magnetic-field vector detector based on the spin rectification effect [J].

Bai, L. H. ;

Gui, Y. S. ;

Wirthmann, A. ;

Recksiedler, E. ;

Mecking, N. ;

Hu, C. -M. ;

Chen, Z. H. ;

Shen, S. C. .

APPLIED PHYSICS LETTERS, 2008, 92 (03)

[4] Nondestructive two-dimensional phase imaging of embedded defects via on-chip spintronic sensor [J].

Cao, Z. X. ;

Harder, M. ;

Fu, L. ;

Zhang, B. ;

Lu, W. ;

Bridges, G. E. ;

Gui, Y. S. ;

Hu, C. -M. .

APPLIED PHYSICS LETTERS, 2012, 100 (25)

[5] MICROWAVE NEAR-FIELD IMAGING WITH OPEN-ENDED WAVE-GUIDE - COMPARISON WITH OTHER TECHNIQUES OF NONDESTRUCTIVE TESTING [J].

DIENER, L .

RESEARCH IN NONDESTRUCTIVE EVALUATION, 1995, 7 (2-3) :137-152

[6] Microwave phase detection with a magnetic tunnel junction [J].

Fan, Xin ;

Kim, Sangcheol ;

Kou, Xiaoming ;

Kolodzey, James ;

Zhang, Huaiwu ;

Xiao, John Q. .

APPLIED PHYSICS LETTERS, 2010, 97 (21)

[7] Enhancing BREAST TUMOR DETECTION with Near-Field Imaging [J].

Fear, Elise C. ;

Hagness, Susan C. ;

Meaney, Paul M. ;

Okoniewski, Michal ;

Stuchly, Maria A. .

IEEE MICROWAVE MAGAZINE, 2002, 3 (01) :48-56

[8] Portable Real-Time Microwave Camera at 24 GHz [J].

Ghasr, Mohammad Tayeb ;

Abou-Khousa, Mohamed A. ;

Kharkovsky, Sergey ;

Zoughi, R. ;

Pommerenke, David .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2012, 60 (02) :1114-1125

[9] Realization of a room-temperature spin dynamo: The spin rectification effect [J].

Gui, Y. S. ;

Mecking, N. ;

Zhou, X. ;

Williams, Gwyn ;

Hu, C. -M. .

PHYSICAL REVIEW LETTERS, 2007, 98 (10)

[10] Recycling ambient microwave energy with broad-band rectenna arrays [J].

Hagerty, JA ;

Helmbrecht, FB ;

McCalpin, WH ;

Zane, R ;

Popovic, ZB .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2004, 52 (03) :1014-1024

← 1 2 3 →