Defense Advanced Research Projects AgencyTagged Content List

Spectroscopy

The study of the interaction between matter and electromagnetic radiation

Showing 3 results for Spectroscopy + Electronics RSS
04/25/2018
Only a few decades ago, finding a particular channel on the radio or television meant dialing a knob by hand, making small tweaks and adjustments to hone in on the right signal. Of course, we now take such fine tuning for granted, simply pressing a button to achieve the same effect. This convenience is enabled by radio frequency synthesis, the generation of accurate signal frequencies from a single reference oscillator.
The Direct On-Chip Digital Optical Synthesizer (DODOS) program seeks to create a technological revolution in optical frequency control analogous to the disruptive advances in microwave frequency control in the 1940s. That early development ushered in a new era for microwave technology, transformed modern warfare, and has since been enabling a multitude of Department of Defense (DoD) and civilian capabilities, including radar, navigation technologies, and satellite and terrestrial communications. Extending frequency control to the optical regime is anticipated to greatly extend the technology base for the next generation of warfighter and other capabilities.
The RadioBio program aims to establish whether functional signaling via electromagnetic waves between biological cells exists and, if it does, to determine what mechanisms are involved and what information is being transferred. The program seeks to determine the validity of electromagnetic biosignaling claims and, where evidence exists, understand how the structure and function of these natural “antennas” are capable of generating and receiving information in a noisy, cluttered electromagnetic environment.