Tetrahertz spectrometer delivered to UC
Optical and infrared methods can be used to investigate the characteristic energies and physics of strongly correlated electron systems, magnetic semiconductors, superconductivity and other novel electromagnetic materials. With its long and substantive track record in the use of terahertz, infrared and optical methods applied to fundamental studies in condensed matter physics, the Infrared Laboratory for Novel Infrared and Magnetic Materials at the University of California, San Diego, founded and led by Professor Dimitri Basovhas, has just taken delivery of a TeraView TPS Spectra 3000 system.
The laboratory will use the system for both routine characterisation of material systems at low temperatures, as well as a new project to develop a near-field microscopy system utilising terahertz time-domain techniques for spectroscopic measurements in ultrahigh vacuum. TeraView has supplied a special breadboard version of its TPS Spectra 3000 time-domain terahertz spectrometer for the project.
Terahertz waves sit in the spectrum between infrared and microwave, and as such have unique properties which enable them to pass through/into objects. They provide images and spectra which contain unique information in a safe, fast and non-destructive manner.
The TPS spectra 3000 is the world’s first commercial terahertz spectrometer capable of performing both transmission and attenuated total reflection (ATR) measurements. Its modular sample compartment also accepts reflectance imaging modules, variable temperature samples holders and cryostat accessories.
Until now, Fourier transform infrared (FTIR) spectroscopy with cooled Si bolometer (1.7 K) has provided the only means to access the terahertz spectral region. TeraView’s terahertz spectrometers use powerful, ultrafast Ti-Sapphire laser sources and semiconductor-based detection systems to supply full access to the 0.06 to 4 THz spectral region. Furthermore, TeraView’s spectrometers do not require liquid helium cooling or any vacuum systems for operation, enabling results to be obtained in a minute or less, all while operating under ambient temperature conditions.
UV broadband spectrometer enhances air pollutant analysis
The laser-based technology developed at TU Graz enables the continual real-time analysis of air...
Physicists produce signals with attosecond duration
A team of physicists has used paired laser pulses to compress a series of electron pulses to a...
New microchip developed using two Nobel Prize-winning techniques
Researchers have developed on-chip technology to measure distances in materials at high...
