Surface enhanced anti-Stokes one-photon luminescence from single gold nanorods. Issue 2 (24th November 2014)

• Record Type: Journal Article
• Authors: He, Yingbo; Xia, Keyu; Lu, Guowei; Shen, Hongming; Cheng, Yuqing; Liu, Yong-chun; Shi, Kebin; Xiao, Yun-Feng; Gong, Qihuang
• Is Part Of: Nanoscale. Volume 7:Issue 2(2015)
• Page Start: 577
• Page End: 582
• Publication Date: 2014-11-24
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c4nr04879b
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Anti-Stokes one-photon luminescence from single gold nanorod was determined to be enhanced by surface plasmon resonance and strongly related with the distribution of electrons near the Fermi level. Abstract : Anti-Stokes one-photon luminescence from a single gold nanorod is experimentally investigated. The anti-Stokes emission of gold nanorods is enhanced and strongly modulated by localized surface plasmon resonance (LSPR). It is found that the polarization dependence of the anti-Stokes emission is in strong correlation with that of the Stokes emission. Further experiments provide evidence that LSPR significantly enhanced both excitation and emission processes. Moreover, the line shape of the anti-Stokes emission is dependent on the surface temperature, which is related to the distribution of free electrons near the Fermi level. This discovery provides an effective method in principle to probe localized temperature at nanoscale dimension. Here, the reported results about the anti-Stokes emission provide more understanding for the photoemission process from the plasmonic nanostructures.