This talk will cover DARPA research programs that have made important strides in metasurfaces for imaging applications. The EXTREME program developed broadband achromatic metasurfaces and hybrid meta-optics for visible imaging applications, as well as actively tunable and hemispherical FOV metalenses in the infrared. The Enabling Night Vision in Eyeglass form factors (ENVision) program is leveraging these advances to develop planar night vision goggle systems based on meta-optics that are achromatic across two full IR bands and have enhanced FOV compared to state-of-the-art devices, all through a single common aperture.
Photonic integrated circuits (PICs), the optical counterpart of traditional electronic integrated circuits, are paving the way toward truly portable and highly accurate biochemical sensors for Department of Defense (DoD)-relevant applications. We introduce the fundamentals of PIC-based biochemical sensing and describe common PIC sensor architectures developed to-date for single-identification and spectroscopic sensor classes. We discuss DoD investments in PIC research and summarize current challenges. We also provide future research directions likely required to realize widespread application of PIC-based biochemical sensors. These research directions include materials research to optimize sensor components for multiplexed sensing; engineering improvements to enhance the practicality of PIC-based devices for field use; and the use of synthetic biology techniques to design new selective receptors for chemical and biological agents.
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