Diffractive optical elements have been proposed for many applications. One of the principal limitations of these lenses is abundant chromatic aberration that prohibits broadband use without design compensation. I am working on a novel configuration that exploits this typically unwanted effect to provide information into a third dimension of current 2D IR detection systems, meanwhile gaining additional information about the target. Possible parameters of interest are the target's direction and velocity vectors relative to the detector and its spectral signature, which will aid in target identification. This paper will focus on the design, fabrication techniques, and characterization of the DOE for this system.
Denise M. Lyons, Denise M. Lyons,
"Design and characterization of a diffractive lens for an IR application", Proc. SPIE 2216, Photonics at the Air Force Photonics Center, (3 June 1994); doi: 10.1117/12.177343; https://doi.org/10.1117/12.177343