TY - RPRT TI - Micro-Fresnel Zone Plate Optical Devices Using Densely Accumulated Ray Points AU - Choi, Sang H. AU - Park, Yeonjoon AU - King, Glen C. AU - Elliott, James R. PY - 2011 UR - https://ntrs.nasa.gov/citations/20110015901 ID - 20110015901 ER -