Direct imaging of the near field and dynamics of surface plasmon resonance on gold nanostructures using photoemission electron microscopy

作     者：Quan Sun Kosei Ueno Han Yu Atsushi Kubo Yasutaka Matsuo Hiroaki Misawa 

作者机构：Research Institute for Electronic ScienceHokkaido UniversitySapporo 001-0021Japan Creative Research InstitutionHokkaido UniversitySapporo 001-0021Japan PRESTOJapan Science and Technology AgencyKawaguchi 332-0012Japan Institute of PhysicsUniversity of TsukubaTsukuba 305-8571Japan 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2013年第2卷第1期

页      面：1-8页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：This study was supported by funding from the Ministry of Education Culture Sports Science and Technology of Japan:KAKENHI Grant-in-Aid for Scientific Research No.23225006 Nanotechnology Platform(Hokkaido University)and the Low-Carbon Research Network of Japan 

主　　题：femtosecond laser local field enhancement near-field imaging photoemission electron microscopy surface plasmon resonance 

摘      要：Localized surface plasmon resonance(LSPR)can be supported by metallic nanoparticles and engineered *** understanding of the spatially resolved near-field properties and dynamics of LSPR is important,but remains experimentally *** report experimental studies toward this aim using photoemission electron microscopy(PEEM)with high spatial resolution of sub-10 *** engineered gold nanostructure arrays(such as rods,nanodisk-like particles and dimers)are investigated via PEEM using near-infrared(NIR)femtosecond laser pulses as the excitation *** the LSPR wavelengths overlap the spectrum of the femtosecond pulses,the LSPR is efficiently excited and promotes multiphoton photoemission,which is correlated with the local intensity of the metallic nanoparticles in the near ***,the local field distribution of the LSPR on different Au nanostructures can be directly explored and discussed using the PEEM *** addition,the dynamics of the LSPR is studied by combining interferometric time-resolved pump-probe technique and *** information on the oscillation and dephasing of the LSPR field can be *** results identify PEEM as a powerful tool for accessing the near-field mapping and dynamic properties of plasmonic nanostructures.