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"Hearing" terahertz electromagnetic radiation
“Hearing” terahertz electromagnetic radiation
Figure (a) Experimental schematic for the TEA (THz-enhanced acoustics) using single-color or dual-color femtosecond laser excitation. Figure (b) Single photoacoustic waveforms measured at a 5 mm distance with (red dashed curve) and without (black solid curve) a 100 kV/cm THz field. The inset shows acoustic spectra.
Credits: Ben Clough
