Title :
THz-Near-Field Micro-Spectroscopy with Backward-Wave Oscillators and a Photo-Induced Aperture
Author :
Gompf, B. ; Dressel, M. ; Heer, H. ; Martens, S.
Author_Institution :
Stuttgart Univ., Stuttgart
Abstract :
We have developed a near-field spectrometer operating in the THz-range between 30 GHz and 1.4 THz, where we use backward-wave oscillators (BWO) as continues wave sources and a photo-induced aperture as near-field probe. This instrument allows performing THz-imaging and spectroscopy with sub-wavelength resolution without a complicated probe-sample distance control and with a continuously adjustable aperture.
Keywords :
backward wave oscillators; millimetre wave imaging; millimetre wave spectroscopy; submillimetre wave imaging; submillimetre wave spectroscopy; BWO; THz-imaging; THz-near-field micro-spectroscopy; backward-wave oscillators; frequency 30 GHz to 1400 GHz; near-field probe; photo-induced aperture; sub-wavelength resolution; submillimetre waves; Apertures; Biomedical optical imaging; Focusing; Laser beams; Lenses; Mirrors; Optical scattering; Oscillators; Signal resolution; Spectroscopy;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368226
