FY 2008 Miniature Spherical Retroreflectors – Final Report

Anheier, Norman C. ; Bernacki, Bruce E. ; Klymyshyn, Nicholas A. ; Krishnaswami, Kannan ; Rodriguez, Carmen P.

关键词: CAPACITY;    CROSS SECTIONS;    DESIGN;    FABRICATION;    METRICS;    OPTICS;    PERFORMANCE;    PROLIFERATION;    REMOTE SENSING;    SIMULATION Retroreflectors;    remote sensing;    optical design;   

DOI  :  10.2172/951859
RP-ID  :  PNNL-18344
PID  :  OSTI ID: 951859
Others  :  Other: NN2001000
Others  :  TRN: US200913%%239

美国|英语

来源: SciTech Connect

【 摘 要 】

Through the duration of the NNSA Office of Nuclear Nonproliferation Research and Development (NA-22) Miniature Spherical Retroreflectors lifecycle project, our research team focused on developing solutions to the fabrication bottleneck that has inhibited development and deployment of wide-angle optically interrogated chemical and radiological remote sensing technology. Our team advanced the concept of step-index clad retroreflectors to approximate an optimized, but yet unrealized spherical gradient index design. An intensive numerical simulation effort was undertaken that resulted in optimized step-index optical designs for mid-infrared applications. Geometric optics ray trace modeling was performed to better understand the geometrical dependencies of the miniature spherical retroreflector application. We adopted and advanced the concept of optical cross section, a metric that provides relative performance comparisons between different retroreflector designs and our cross-section analysis demonstrated that our step-index design provided 90% of the range capacity of the ideal spherical index design.