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Defense Intelligence Reference Document High-Frequency Gravitational Wave Communications
Defense Intelligence Agency · 57 pages · text from the file's own layer
This Defense Intelligence Reference Document was prepared by the Defense Intelligence Agency under its Advanced Aerospace Weapon System Applications (AAWSA) program, is dated 6 April 2010 and is part of a series of advanced technology reports produced in FY 2009. It reviews proposed laboratory generators and detectors of high-frequency gravitational waves for communications. It favors an infrared-excited molecules transmitter and the Li-Baker detector, estimating about 1.9 million bits per second over 7,000 km through the Earth. It also discusses timing standards and interplanetary navigation uses.
“BEAMS”17 pages
- p. 5 …communications are carried on an extremely narrow beam
directly through the Earth, there is a very…
- p. 9 …Alternatively, a pulsed particle
beam, which could include antimatter, could trigger nuclear reactions and build up…
- p. 15 …Thus a HFGW total flux of l .29x 108 wm· 2 in a very narrow
beam…
- p. 16 …With this configuration, the width of the needle-like, narrow HFGW beam at the receive
end…
- p. 17 …The Birmingham University HFGW detector measures changes in the polarization state
of a microwave beam (indicating…
- p. 19 …The result of the intersection of the parallel and superimposed EM and GW beams,
according to…
- p. 20 …However, with the Li-Effect, there is an additional
focused microwave beam ("Gaussian beam") at the…
- p. 21 …The signal (the PPF) and the noise, or background photon flux (BPF) from the Gaussian
beam…
- p. 23 …Assuming a "best
efforts" value of 1000 W for the power of the Gaussian beam in…
- p. 24 UNCLASSIFIED/ ,'l"e" Cl"l"!e!•t tl9E CHE I
beam is much greater than the…
- p. 25 …A Gaussian (focused, with minimal side lobes) microwave beam (GB) is aimed along
the +z-axis…
- p. 30 …With this configuration, the width of the needle-like, narrow HFGW beam at the receive
end…
- p. 38 …with stronger magnetic fields, more intense Gaussian beams, and
better baffles as well as new detector…
- p. 46 …and Zhao P. (1992), "Interaction Between Narrow Wave Beam-Type
High Frequency Gravitational Radiation and Electromagnetic…
- p. 47 …M Land Fang Z. (2007), "Coupling of an open cavity to a microwave
beam: a possible…
- p. 52 …D01.3 Microwave Transmitter {Gaussian beam)
Design of the microwave transmitter for the Gaussian beam, directed…
- p. 53 …of the interior baffles around the Gaussian beam, and a "tunnel" between
fractal-membrane reflectors and…
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Mirrors
Position of
focused GW
generated
IR monomode waveguide
formed by active material
High power IR source
Figure 3. Circular Resonator Geometry Using Infrared Excitation
Analogous to Figure 2, we see in Figure 4 the radiation pattern for a pair of orbiting
masses.
GW
l
I
T
GW
Figure 4. Radiation Pattern Calculated by Landau and Lifshitz (1975)
Next consider a number N of such orbit planes stacked one on top of another with the
gravitational-wave (GW) radiation growing flux (Wm·2) proportional to N2 as the GW
moves up the axis of the N orbit planes as in Figure 5.
8
UNCLASSIFIED/ ,'F811. 8FFll!l*L 1!1!11! 811L¥
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 57 pages are in the text index: search them above, or from the library's search.