A Collaborative National Center for Fusion & Plasma Research

Minimum Backreflection Laser Beam Dump

What is proposed in the present invention disclosure is an effective way to eliminate backwards scattered radiation from laser beam dumps. This scattered radiation, especially when in the line of sight of signal beams in optical setups can contribute significantly to the background noise, thus effectively decreasing the sensitivity in such setups. Therefore, a mechanism that allows for minimization of this backscattered radiation is needed and is not currently commercially available. The proposed method has been experimentally tested in PPPL labs and has given remarkable results in increasing the sensitivity of optical setups. The proposed scheme is not limited to laser beams, but could be used in the termination of any type of radiation, be it in free space or in a conductor. 


U.S. Department of Energy
Princeton Plasma Physics Laboratory is a U.S. Department of Energy national laboratory managed by Princeton University.

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