By applying an extremely large magnetic field to break a semiconductor’s energy bands into discrete levels, researchers have shown that it is possible for terahertz quantum cascade lasers to operate at unprecedented temperatures and wavelengths.
Using a new technique based on terahertz (THz) spectroscopy, scientists at the National Institute of Standards and Technology have recently taken the first step toward revealing the hidden machinations of biomolecules in water.
Published on January 8 in the journal Nature, a French-English collaboration used photonic crystals to control the laser beam and considerably restrict its divergence. This finding opens the way to a large number of promising applications, for instance in the field of terahertz medical imaging.
GREAT, the “German REceiver for Astronomy at Terahertz Frequencies”, is a receiver developed in Germany for the airborne observatory SOFIA (“Stratospheric Observatory For Infrared Astronomy”). In December 2008, GREAT successfully managed its pre-shipment review after extensive laboratory tests and will now be shipped to its first observing mission on board of SOFIA.
Chassagneux et al. fabricate photonic-crystal terahertz semiconductor lasers, where the photonic-crystal pattern is defined in the device top metallization.
The 2nd European Topical Meeting on Nanophotonics and Metamaterials
5 – 8 January, 2009, Seefeld ski resort, Tirol, Austria
Menlo Systems Inc. 69 Stickles Pond Rd. Newton, NJ 07860 United States Telephone: 973-300-4490 Fax: 973-300-3600 E-mail: ussales@menlosystems.com Web site: http://www.MenloSystems.com/ Description Menlo Systems began life as the sole commercial provider of Nobel Prize winning optical frequency comb technology. As the optical engine for our THz antennas, Menlo Systems fiber lasers run in optical clocks [...]
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