Open AccessTerahertz spectral signatures :measurement and detection LDRD project 86361 final report.
Author(s) -
Michael C. Wanke,
Igal Brener,
Mark Lee
Publication year - 2005
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/876349
Subject(s) - terahertz radiation , spectrometer , optics , laser , upgrade , spectral resolution , photomixing , terahertz spectroscopy and technology , signal (programming language) , absorption (acoustics) , physics , materials science , spectral line , far infrared laser , computer science , terahertz metamaterials , programming language , astronomy , operating system
LDRD Project 86361 provided support to upgrade the chemical and material spectral signature measurement and detection capabilities of Sandia National Laboratories using the terahertz (THz) portion of the electromagnetic spectrum, which includes frequencies between 0.1 to 10 THz. Under this project, a THz time-domain spectrometer was completed. This instrument measures sample absorption spectra coherently, obtaining both magnitude and phase of the absorption signal, and has shown an operating signal-to-noise ratio of 10{sub 4}. Additionally, various gas cells and a reflectometer were added to an existing high-resolution THz Fourier transform spectrometer, which greatly extend the functionality of this spectrometer. Finally, preliminary efforts to design an integrated THz transceiver based on a quantum cascade laser were begun
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