Title :
Development of optical-fiber-probe-coupled laser terahertz-emission microscope
Author :
Inoue, R. ; Morimune, K. ; Uchida, N. ; Tonouchi, M.
Author_Institution :
Inst. of Laser, Osaka Univ., Suita, Japan
Abstract :
We developed the optical-fiber-probe-coupled laser-terahertz emission microscope system. One focuses femtosecond laser pulses on a sample surface through the optical fiber-probe with a beam diameter of 5 μm, detects terahertz emission from the photo-excited area, and obtains images by scanning the laser beam. The gold line and space patterns are evaporated on a semi-insulating gallium arsenide substrate, and measured in order to investigate the spatial resolution of the system.
Keywords :
gallium arsenide; measurement by laser beam; optical fibres; optical microscopes; photoexcitation; probes; submillimetre wave devices; submillimetre wave measurement; substrates; 5 micron; femtosecond laser pulses; laser beam scanning; optical-fiber-probe-coupled lasers; photoexcitation area; semi-insulating gallium arsenide substrate; terahertz emission detection; terahertz emission microscope; Fiber lasers; Focusing; Gold; Laser beams; Optical fibers; Optical microscopy; Optical pulses; Stimulated emission; Surface emitting lasers; Ultrafast optics;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572580
