Documents / Official release
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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than the zeroth one. This confirms the recently predicted effect that for IPMs one can
indeed observe a very counterintuitive effect: sub-diffraction waves can indeed
propagate with less loss than the diffraction-limited ones.
The second milestone involves demonstrating the possibility of observing the
interference of sub-diffraction electromagnetic waves inside the IPM using the two
beam/two-detector technique. Figure 10 demonstrates this interference pattern which
reveals the phase advance of the sub-diffraction waves inside the IPM. While we have
so far demonstrated the interference between the first Fourier component of the grating
(sub-diffraction) and the zeroth Fourier component, we see the possibility of interfering
even more sub-diffraction waves (2 nd and 3rd).
Interference scan , 10.800 micro11s
• • 10 12
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I°' +-t---+--- ----1-1,__,__ _ +f-_,___ l-f--t-i
lnst-t-l---l-+--l-l--,f+--1- -1--t- l--l-i
I DA ,__,,_,__ .,._1--,.-1--1-,
Figure 13. (Left): Experimental Setup for 2-Beams/2-Detectors Interferometric Measurement in Our
Lab. (Right): Preliminary Experimental Results : infrared intensity on two detectors (red and black lines) are
(i) different from each other; (ii) have a sinusoidal dependence on the delay line position (in microns), which is
equivalent to the phase delay between the two beams; (iii) are shifted in phase by the amount equal to twice the
phase difference between the pt order (sub-diffraction) and 0th order (radiation zone) Fourier components of the
bottom grating . Measurements taken at J..= 10.8 μm and J..= 11.3 μm .
With these two milestones established, it is now possible to conduct true sub
wavelength imaging experiments using two (or more) far-field detectors and jointly
processing their inputs.
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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.