Defense Advanced Research Projects AgencyTagged Content List

Fundamental Physical Science

Pushing the boundaries of knowledge of the physical sciences

Showing 109 results for Fundamentals RSS
Scientific imagination is critical to our economy as well as our national security and defense. Research and development, as an expression of scientific imagination, is now a global and intensely competitive enterprise. This competition is heightened by digital and network disruptors that increase the speed and extend the borders of idea exchange affecting the nature and spread of threats and opportunities. Organizations fundamentally based on shaping the future need to leverage every possible advantage to succeed in this environment.
The social sciences can play important roles in assisting military planners and decision-makers who are trying to understand complex human social behaviors and systems, potentially facilitating a wide range of missions including humanitarian, stability, and counter-insurgency operations. Current social science approaches to studying behavior rely on a variety of modeling methods—both qualitative and quantitative—which seek to make inferences about the causes of social phenomena on the basis of observations in the real-world. Yet little is known about how accurate these methods and models really are, let alone whether the connections they observe and predict are truly matters of cause and effect or mere correlations.
ITA3 will determine the practical and fundamental limits to imaging using low frequency electromagnetic waves.
The photon is a fundamental carrier of information, possessing numerous information carrying degrees of freedom including frequency, phase, arrival time, polarization, orbital angular momentum, linear momentum, entanglement, etc. Because optical photons are approximately a million times more costly (i.e., energetic) than their radio frequency counterparts, photons are a valuable resource for many military applications ranging from communications systems to visible and infrared sensing platforms.
Coatings, thin films and advanced surfaces are important aspects of systems, devices and technologies critical to the mission of the Department of Defense. Despite decades of work, methods that enable atomic through millimeter-scale control over structure and properties of materials deposited on surfaces are still underdeveloped. For example, structural organization of high-value thin films is typically controlled by high-temperature deposition or annealing, but the temperatures employed during thin-film synthesis and deposition exceed the limits of many DoD-relevant substrates, restricting application opportunities.