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Terahertz Spectrometer

Photonics Spectra
Mar 2011
Toptica Photonics AGRequest Info
 
Toptica Photonics AG has introduced a fast, compact next-generation terahertz spectrometer system with continuous-wave 1.5-μm lasers. The frequency-domain spectrometer combines the company’s new TeraBeam, a highly integrated two-color diode laser, with newly developed InGaAs/InP emitter and detector technology from Fraunhofer Heinrich-Hertz Institute in Berlin. The system features a scan option that reduces acquisition times by more than two orders of magnitude and that can acquire a complete terahertz spectrum from 50 to 1200 GHz, with subgigahertz resolution in <1 min. Traditionally, research in the field of frequency-domain continuous-wave terahertz has largely been carried out with GaAs photomixers, requiring laser wavelengths below 870 nm, a suitable but costly technique.


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