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This Defense Intelligence Reference Document from the Defense Intelligence Agency, dated 6 April 2010, reviews electromagnetic and optical metamaterials for aerospace use. It was produced in FY 2009 under the Advanced Aerospace Weapon System Applications (AAWSA) Program. The report covers super-lenses and hyper-lenses for imaging objects smaller than the diffraction limit, slowing light to shrink components, energy-harvesting absorbers, and one-way chiral devices. It concludes that metamaterials matter for aerospace because they allow smaller, lighter components.
“Nature”8 pages
UNCLASSIFIED/;'tQa QFFl6i#1L Y61i OHLJ/ a ... --- Figure 6. Schematic of the SiC-Based Super-Lens Which is Imaging Sub-Wavelength Holes Buried Under the SiO2 Layer. The imaged objects are A/20 holes milled in gold using FIB. The scattered signal is picked up by the tip of an NSOM and directed towards the IR detector. Depending on the imaging wavelength, efther amplitude (e) or the phase (f,g) of the signal are prominent. As the laser beam scatters off the sub-wavelength holes, its electric field is picked up by the tip of a Near-Field Scattering Optical Microscope (NSOM) and re-scattered into the far-field. There it is interfered with the reference pulse and picked up by an infrared detector. Note that this interferometric technique enables one to extract both the phase and amplitude of the field, as shown in Figure 6. This significantly broadens the spectral range over which the super-lens yields meaningful information. For example, the amplitude contrast is highest at>-.. =:!10.85 μm shown in panel (e) while the phase contrasts are the highest at J\ =11.03 μm and J\ =10.65 μm. 8 UNCLASSIFIED//EOR QFFl&l?d: WOil 8HLi
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 27 pages are in the text index: search them above, or from the library's search.