Ghost spintronic THz-emitter-array microscope
作者机构:Institute of Fluid PhysicsChina Academy of Engineering PhysicsMianyang 621900 SichuanChina Department of Optics and Optical EngineeringUniversity of Science and Technology of ChinaHefei 230026 AnhuiChina Microsystem&Terahertz Research CenterChina Academy of Engineering PhysicsChengdu 610200 SichuanChina Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of Sciences100190 BeijingChina National Laboratory of Solid-State Microstructures and Department of PhysicsNanjing UniversityNanjing 210093 JiangsuChina Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore 117583Singapore The Institute of OpticsUniversity of RochesterRochesterNY 14627USA
出 版 物:《Light(Science & Applications)》 (光(科学与应用)(英文版))
年 卷 期:2020年第9卷第1期
页 面:1057-1065页
核心收录:
学科分类:0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学] 0803[工学-光学工程]
基 金:supported by the National Key Research and Development Program(No.2017YFC1200400) the Science Challenge Project(No.TZ2018003) the Distinguished Young Scholars of Sichuan Province(No.2020JDJQ0008) the National Natural Science Foundation of China(NSFC)(Nos.U1730246 and 11704358) the Foundation of President of China Academy of Engineering Physics(No.201501033)
摘 要:Terahertz(THz)waves show great potential in nondestructive testing,biodetection and cancer *** recent progress in THz wave near-field probes/apertures enabling raster scanning of an object’s surface,an efficient,nonscanning,noninvasive,deep subdiffraction imaging technique remains ***,we demonstrate THz near-field microscopy using a reconfigurable spintronic THz emitter array(STEA)based on the computational ghost imaging *** illuminating an object with the reconfigurable STEA followed by computing the correlation,we can reconstruct an image of the object with deep subdiffraction *** applying an external magnetic field,inline polarization rotation of the THz wave is realized,making the fused image contrast ***-of-flight(TOF)measurements of coherent THz pulses further enable objects at different distances or depths to be *** demonstrated ghost spintronic THz-emitter-array microscope(GHOSTEAM)is a radically novel imaging tool for THz near-field imaging,opening paradigm-shifting opportunities for nonintrusive label-free bioimaging in a broadband frequency range from 0.1 to 30 THz(namely,3.3-1000 cm^(−1)).