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Originally Posted by Seden
a quote from it "Excitation of films with the 795 nm fundamental of a Ti:sapphire femtosecond laser produces a strong white luminescence." The films from the quote are gold films. Now when you read it you will notice that there was some tuning involved depending on the thickness I believe but pretty interesting none the less.
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Hmmmm...
I see the words "excitation", "gold" and "tuning" all came from the same article. This pretty much proves that gold has a frequency that can be tuned to, and that LRLs will locate the gold at distance. Doesn't it?
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Originally Posted by Seden
...a fellow claims to use a camera with an IR filter to photograph ions on the earths surface at close range where metal has been buried for some time,anyone try this? I went an bought a IR longpass filter and tried photographing an area on my lawn where for the past 11 years I have been dumping my concentrates from placer mining and nada darn thing appeared on the IR picture no matter how I adjusted the settings on the GOOGLE Picassa software.
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There is a much easier way to obtain instant results using an old digital camera. Digital cameras are sensitive to IR on their image sensors. In order to remove unwanted IR that spoils pictures, manufacturers put an IR filter over the image sensor. You can disassemble an old digital camera and remove the IR filter from the image sensor, then replace it with a visible light filter that passes IR. This has been done by hobbyists, using a visible light filter made from a piece of 35mm negative film that has been developed. They cut a piece of film from the opaque end of the negative roll of film, and use it to stop visible light, while passing IR.
You can see some details on how to do this online:
http://geektechnique.org/index.php?id=254
The advantage to using a modified digital camera is you get instant results, and save the cost of filters, developing and printing, This means the digital camera can be used as a view port to look for sources of IR in relation to buried treasures. No need to wait for prints to be made.
P.S. Gold or gold concentrates dumped on the surface of the ground will not generate ions as gold buried beneath the ground. Scientists have discovered that gold ions are formed below the surface where gold-digesting microorganisms live and attack the gold with chemicals. These ions migrate upward through the soil until they reach 10-30cm below the surface. At this point, the ions become bound with the constituents of the soil (gold compounds, as in metallic gold, gold tellurides, or possibly organic compounds in extremely small amounts). Since your tailings never spent much time in contact with soil at the ion-generating depths, I doubt it has any ions around it. In fact, your IR photos proved it does not show an IR anomaly.
Best wishes,
J_P