Defense Advanced Research Projects AgencyTagged Content List

Electromagnetic Spectrum and Bandwidth

Novel concepts and technologies for maximizing use of the electromagnetic spectrum

Showing 18 results for Spectrum + Photonics RSS
Since its inception in 1991, DARPA’s Microsystems Technology Office (MTO) has been working to create and prevent strategic surprise through investments in compact microelectronic components such as microprocessors, microelectromechanical systems (MEMS), and photonic devices. MTO-derived innovations and advanced capabilities in areas such as wide-band gap materials, phased-array radars, high-energy lasers, and infrared imaging have helped the United States establish and maintain technological superiority for more than two decades.
05/18/2015
Since its inception in 1991, DARPA’s Microsystems Technology Office (MTO) has been working to create and prevent strategic surprise through investments in compact microelectronic components such as microprocessors, microelectromechanical systems (MEMS), and photonic devices. MTO-derived innovations and advanced capabilities in areas such as wide-band gap materials, phased-array radars, high-energy lasers, and infrared imaging have helped the United States establish and maintain technological superiority for more than two decades.
03/06/2014
High-energy lasers (HEL) have the potential to benefit a variety of military missions, particularly as weapons or as high-bandwidth communications devices. However, the massive size, weight and power requirements (SWaP) of legacy laser systems limit their use on many military platforms. Even if SWaP limitations can be overcome, turbulence manifested as density fluctuations in the atmosphere increase laser beam size at the target, further limiting laser target irradiance and effectiveness over long distances.
04/22/2014
In the 1940s, researchers learned how to precisely control the frequency of microwaves, which enabled radio transmission to transition from relatively low-fidelity amplitude modulation (AM) to high-fidelity frequency modulation (FM). This accomplishment, called microwave frequency synthesis, brought about many advanced technologies now critical to the military, such as wireless communications, radar, electronic warfare, atomic sensors and precise timing.
10/08/2014
DARPA yesterday issued a solicitation for proposals responsive to its Spectral Combs from UV to THz (SCOUT) program, which seeks new capabilities for highly sensitive remote detection of multiple biological or chemical agents in liquid or gaseous forms. A proposers day is set for Oct. 15 via webcast.