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Defense Intelligence Reference Document Invisibilty Cloaking Theory And Experiments

Defense Intelligence Agency · 29 pages · text from the file's own layer

This Defense Intelligence Reference Document, dated 2 March 2010 and produced by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) Program, is a technical survey of invisibility. It covers camouflage, including stealth aircraft and optical camouflage, then transparency, cloaking by coordinate transformation, metamaterials and non-Euclidean broadband cloaking. It concludes that perfect cloaking is impossible but imperfect microwave cloaks are within reach of present technology. Whether cloaking will work at visible wavelengths remains unclear.

  • p. 13 …The red circle in Figure 9B is reduced to the red dot in Figure 9A. As…
  • p. 15 …At the inner ring, the red curve reaches zero, defining the boundary of the cloaking device…
  • p. 16 …green missing appears red, which produces the cup's exquisite color. (Light is also scattered in…
  • p. 21 …To understand this, consider a light ray that just straddles the red point in the virtual…
  • p. 24 …Consider the fate of light rays in this two-dimensional virtual world. Light rays would either…
  • p. 25 …Alternatively (D), one could expand the red line that light never crosses to create a hidden…
UNCLASSIFIED/ ;<F&lil: 8FFI1il.t.k Wfili &,.kY
Invisibility Cloaking: Theory and Experiments
Prepared by:
l(b)(3):10 USC 424
Defense Intelligence Agency
Author:
(b)(6)
Administrative Note
COPYRIGHT WARNING: Further dissemination of the photographs in this publication is not authorized.
This product is one in a series of advanced technology reports produced in FY 2009
under the Defense Intelligence Agency, l(b)(3):10 usc 424 jAdvanced Aerospace
Weapon System Applications (AAWSA) Program. Comments or questions pertaining to
this document should be addressed to (b)(3):10 usc 424:(b)(6) , AAWSA Program
Manager, Defense Intelligence Agency, : (b)(3):10 usc 424 g 6000, Washington,
DC 20340-5100.
ii
UNCLASSIFIED/ ;CFQlil: 8FFI1il.«1k W&li 8Hk¥

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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 29 pages are in the text index: search them above, or from the library's search.