Real -time_THz_spectrometer brochure - Ekspla - #1

Text version of the page

THz Spectrometer THz Features ƒÝ Wide spectral range up to 3.5 THz (116 cm-1) ƒÝ Excellent spectral resolution better than 5 GHz (0.17 cm-1) ƒÝ High power S/N ratio >106:1 @ 0.4 THz ƒÝ Real-time data acquisition up to 10 spectra/s ƒÝ “No bearing” design of fast delay line – virtually unlimited lifetime ƒÝ Transmission and reflection modes ƒÝ High spatial resolution THz imaging ƒÝ Complete PC control ƒÝ User-friendly software for transmission or/and absorption measurements, imaging Applications ƒÝ THz transmission, reflection spectroscopy ƒÝ Optical pump – THz probe spectroscopy ƒÝ Chemical material characterization ƒÝ Medical and biological nondestructive research ƒÝ Semiconductor wafer inspection ƒÝ Polymeric compounding ƒÝ Explosives detection ƒÝ Your application is welcome… Real-Time Terahertz Spectrometer Spectrometer Real-Time Terahertz Spectrometer offered by EKSPLA is a powerful tool for investigative applications of pulsed terahertz waves. With simple and robust design, it is easyto- use and adaptable to individual requirements. The unique design of microstrip photoconductive antenna fabricated on low-temperature grown GaAs (LT-GaAs) substrate ensures broadband spectral coverage and high dynamic range. The system is designed with two delay lines: fast and slow. Fast scan line allows real time data acquisition with 10 spectra/sec. speed. Averaging up to 1064 samples can increase signal to noise ratio to 106:1 @ 0.4. Additional slow delay line extends scan window from 110 ps to 220 ps; as a result system obtains excellent spectral resolution of Äf < 5 GHz. The fast scan line is designed without bearings and uses a magnetically coupled drive which makes it extremely reliable and significantly extends the lifetime. Our spectrometer is the perfect choice for broadband THz imaging. It allows scan of up to 25×25 mm sample with spatial resolution of approx. 1 mm. Measurements contain information about the target, revealing both structural and spectroscopic information.