Terahertz Laboratory

The Terahertz Laboratory is located in the Department of Electrical and Computer Engineering at The University of Massachusetts at Amherst. The laboratory is part of LAMMDA and dedicated to the development of low noise THz receivers and detectors. We carry on both theoretical and experimental work, emphasizing mixer receivers at terahertz frequencies.

The Laboratory uses two CO2-pumped submillimeter wave gas lasers. We also have various LO sources for millimeter waves. A wide range of diagnostic equipment such as automatic network analyzers, spectrum analyzers and a Bruker FTIR spectrometer, etc. is also available. Computers control many systems via LabView interfaces. Liquid helium dewars, with and without superconducting magnets, are available as well.

In the austral summer 2002-2003, our group successfully deployed a heterodyne terahertz receiver at the AST/RO Telescope at the U.S. South Pole Station, Antarctica. TREND (Terahertz Receiver with NbN Device)  had a double-sideband receiver noise temperature of 1200 K at 1.27 THz.

More recently, we have demonstrated the first terahertz heterodyne focal plane array (FPA) using HEB mixer elements and MMIC IF amplifiers; the first 3D integrated terahertz coherent down-converter; and the first 2D imaging system employing an integrated HEB/MMIC receiver as detector. We have also published the first experimental results on a heterodyne detector based on single walled carbon nano-tubes.

 


Marcus Hall Rm 9E
Department of Electrical and Computer Engineering
University of Massachusetts
Amherst, MA 01003