Thz-Near-Field Micro-Spectroscopy With Backward-Wave Oscillators And A Photo-Induced Aperture

B. Gompf,M. Dressel, H. Heer,S. Martens

CONFERENCE DIGEST OF THE 2006 JOINT 31ST INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 14TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS（2006）

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摘要

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-fleld 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.

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关键词

backward wave oscillator,continuous wave,near field

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