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Meadowlark Optics - Wave Plates 6/24 LB 2024

Opening the Terahertz Window

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A T-ray laser system combines fiber-pigtailed modules and computer control for terahertz time-domain spectroscopy and imaging.

David Zimdars and J.V. Rudd, Picometrix Inc., Ann Arbor, Mich.

Exploration of the far-infrared region of the electromagnetic spectrum has been frustrated by the difficulty of generating and detecting radiation at terahertz frequencies (0.1 to 10 THz). Researchers had to contend with low-brightness thermal sources or narrow-bandwidth molecular lasers to produce radiant energy in this region, and with low-sensitivity cryogenic bolometers for detection. Conditions began to change in the early 1990s with the advent of ultrafast optoelectronic techniques for producing and detecting terahertz radiation, or T-rays. One promising method, terahertz...Read full article

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    Published: May 2000
    FeaturesSensors & Detectors

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