Eurekalert March 15, 2018 Chemical compounds all carry distinctive absorption “fingerprints” within the mid-infrared spectral region of 2 to 12 microns. A team of researchers in the US (NIST Colorado, University of Colorado, NIST Maryland) leveraged robust fabrication and geometrical dispersion engineering of nanophotonic waveguides for multi-band, coherent frequency combs spanning 70 THz in the midinfrared (2.5 µm–6.2 µm). Precise waveguide fabrication provides significant spectral broadening with engineered spectra targeted at specific mid-infrared bands. They have numerous applications — from transferring time standards and improving GPS signals to precision spectroscopy. These sensors can significantly increase the detection sensitivity of tools […]
Tag Archives: Terahertz technology
Taking terahertz data links around the bend
Science Daily February 6, 2018 Unlike microwaves, terahertz waves are entirely blocked by most solid objects. The assumption has been that it’s not possible to bounce a terahertz beam around — say, off a wall or two — to find a clear path around an object. A team of researchers in the US (Brown University, New Jersey Institute of Technology) bounced terahertz waves at four different frequencies off a variety of objects and showed that acceptable bit-error-rates were achievable with modest increases in signal power… read more. Open Access TECHNICAL ARTICLE