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This Defense Intelligence Reference Document, DIA-08-1004-006, is dated 6 April 2010 and was prepared by the Defense Intelligence Agency's Defense Warning Office. It is one of a series of advanced technology reports produced in FY 2009 under the Advanced Aerospace Weapon System Applications Program. The report reviews electromagnetic and optical metamaterials and their uses in sub-diffraction imaging, component miniaturization, energy harvesting, optical isolators and tunable devices. It concludes that metamaterials remain academic but have great potential for aerospace applications.
From the source: Release of 2026-09-18 Incident: 4/6/10, Las Vegas, Nevada. Released with redactions. This document is a Defense Intelligence Reference Document (DIRD), a technical reference format used by the Defense Intelligence Agency (DIA) to capture baseline knowledge on a specific topic for later analytic use. DIRDs are best understood as reference and synthesis products rather than as original research. It is one of 38 DIRDs produced under the Advanced Aerospace Weapon System Applications Program (AAWSAP) between 2009 and 2011. Because AAWSAP’s scope permitted a broad range of supporting topics, not every DIRD in the series directly concerns aerospace systems or future threat assessment. The following summary reflects the DIRD’s scope and framing at the time of writing and should not be read as implying current validation of the concepts discussed. This DIRD surveys metamaterials, engineered structures designed to control electromagnetic waves in ways ordinary materials cannot, and argues that their main aerospace value lies in unusual optical and microwave properties together with significant component miniaturization. The report reviews possible applications including sub-wavelength imaging, compact waveguides and lasers, energy harvesting, tunable absorbers, nonreciprocal devices, and switchable materials, with particular emphasis on infrared and microwave uses for sensing, power management, and payload efficiency. It notes that many of the most ambitious applications depend on the practical output of a still-nascent field, especially in optical metamaterials, where only limited demonstrations had been achieved and fabrication remained a major constraint. The document presents metamaterials as a promising advanced materials field with credible niche applications and broader long-term potential.
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Contents
Definition of Metamaterials .................................................................................... 1
Applications to Sub-Diffraction Imaging: Super-Lens and Hyper-Lens .................. 6
Applications to Circuits and Waveguide Miniaturization: Slowing Down and
Manipulating Electromagnetic Pulses (EMP) Using Advanced Metamaterials ....... 16
Metamaterials for Energy Harvesting ................................................................... 20
Nonlinear Non-Reciprocal Chiral Metamaterials: For Developing Novel Optical
Isolators and "One-Way" Microwave Mirrors ....................................................... 27
Tunable Switchable Metamaterials ....................................................................... 30
Summary and Conclusions ................................................................................... 31
References ........................................................................................................... 31
Figures
Figure 1. Example of a Metamaterial Component: The Magnetic Split Ring
Resonator (SRR) Design .......................................................................... 2
Figure 2. Example of Another Metamaterial Component: Electric Ring Resonator
Figure 3. Geometry of Original Planar Metamaterial Unit Cells (OE1-OE6) and Their
Figure 4. Recent Optical Metamaterials for Telecommunication Wavelength and
Figure 6. Schematic of the SiC-based Super-lens Which is Imaging Sub-wavelength
(ERR) ......................................................................................................... 2
Complements (CE1-CE6) ......................................................................... 3
Mid-Infrared Indefinite Permittivity Material .......................................... 5
Figures. Schematic of The Super-lens With n=-1 Refractive Index Corresponding
to ( Surrounded by Vacuum ..................................................................... 7
Holes Buried Under the SiO2 Layer .......................................................... 8
Figure 7. Theoretical Concepts (left panel) and Experimental Implementation
(right panel) of an Optical Hyperlens Capable of Magnifying Sub-
Diffraction Objects to Observable (larger than Size................................. 9
Figure 8. Hyperlens Based on a Converging Array of Metal Wires ........................ 10
Figure 9. Far-Field Super-lens (FSL) Based on an Indefinite Permittivity
Metamaterial Placed Between the Object and the Image-Releasing
Grating .................................................................................................. 12
Figure 10. Tomographic Multi-Beam Multi-Detector Holography of Sub-Wavelength
Objects Using Indefinite Permittivity Medium (IPM) ........................... 12
Figure 11. First Experimental Demonstration of Propagating Sub-Diffraction Waves
Figure 12. Schematic for 2-Beams/2-Detectors Interferometric Measurement
Figure 13. Experimental Setup for 2-Beams/2-Detectors Interferometric
in the Indefinite Permittivity Medium (IPM) ....................................... 13
and Numerical Simulation................................................................... 14
Measurement in the Lab and Preliminary Experimental Results .......... 15
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 38 pages are in the text index: search them above, or from the library's search.