Figure 1
From: Terahertz emission from gold nanorods irradiated by ultrashort laser pulses of different wavelengths

(a) Photograph and (b) SEM image of the Au nanorod sample. (c) Absorbance spectra of the sample for the incident angles of 0° and 45° for p- and s-polarizations (normalized to the absorbance of the Au-coated glass substrate without nanorods). (d) Schematic of the terahertz generation and detection setup.