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.
2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (irmmw-thz), 2013
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38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2013)