Title :
Terahertz-field-induced photoluminescence of nanostructured gold films
Author :
Iwaszczuk, K. ; Malureanu, Radu ; Zalkovskij, Maksim ; Strikwerda, Andrew C. ; Jepsen, Peter Uhd
Author_Institution :
DTU Fotonik - Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We experimentally demonstrate photoluminescence from nanostructured ultrathin gold films subjected to strong single-cycle terahertz transients with peak electric field over 300 kV/cm. We show that UV-Vis-NIR light is being generated and the efficiency of the process is strongly enhanced at the percolation threshold.
Keywords :
gold; infrared spectra; metallic thin films; nanostructured materials; percolation; photoluminescence; terahertz wave spectra; ultraviolet spectra; visible spectra; Au; UV-vis-NIR spectra; electric field; nanostructured ultrathin films; percolation threshold; single-cycle terahertz transients; terahertz-field-induced photoluminescence; Conductivity; Electron tubes; Films; Gold; Photoluminescence; Substrates; Transient analysis;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665901
