Introduction to Invisibility Cloaking Research
The Defense Intelligence Agency's reference Act efforts, as made available by The Black Vault, an online FOIA archive. While the author's name is redacted under exemption (b)(6), the preparation is attributed to the Defense Intelligence Agency, underscoring a formal, institutional review of the topic. The paper draws on a wide range of scientific literature, including foundational papers from 2006 that introduced transformation-based cloaking, and it discusses experimental demonstrations such as the first microwave cloak in October 2006.
By compiling this information, the DIA document serves as a technical reference that bridges scientific research and potential defense applications, without claiming that practical invisibility has been achieved. It highlights both the promise and the fundamental challenges, such as the need for materials with extreme properties and the difficulty of broadband operation. This introduction establishes the document's role as a comprehensive overview, setting the stage for a deeper examination of the scientific principles,…