G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/87 (2006.01) B07C 5/342 (2006.01) G01N 21/65 (2006.01)
Patent
CA 2241470
The invention concerns a method and apparatus for detecting diamonds. In the method, particles (32) undergoing analysis are irradiated by a beam (30) of laser light formed by focusing multiple laser beams (12, 14). At least two of these beams have frequencies differing from one another by a value characteristic of diamond so that, in the focused beam, at least some components of the laser beams are coherently phase-matched. The scattered signal emitted by each particle is then collected and a determination is made as to whether such signal is a CARS signal characteristic of diamond.
Driver Harry Stephen Thackwray
Pityana Sisa Lesly
Van Der Horst Robertson Gerald Noel
Viranna Narendra Balaguru
de Beers Consolidated Mines Limited
Gowling Lafleur Henderson Llp
LandOfFree
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