THz generation from graphite

• Published in: 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves pp. 1 - 2
• Main Authors: Ramakrishnan, G., Chakkittakandy, R., Planken, P.C.M.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.09.2009
• Subjects: Laser excitation; Optical pulse generation; Optical pulses; Optical surface waves; Polarization; Power generation; Radiation detectors; Surface emitting lasers; Ultrafast electronics; Ultrafast optics

Subpicosecond terahertz pulses are generated from the surfaces of graphite samples, when illuminated with femtosecond near-infrared laser pulses. Our experiments with highly oriented pyrolytic graphite samples suggest that the emission of THz radiation is caused by photoinduced transient charge carr...