Simultaneous Green And Infrared Pdv
SHOCK COMPRESSION OF CONDENSED MATTER - 2019(2020)
摘要
We have developed a fiber photon Doppler velocimetry (PDV) system that operates at 532nm, i.e., Green PDV. The fringe constant, or # fringes/change in position, is three times higher than in traditional PDV, which is implemented with 1550 nm lasers. Because of that, we expect approximately three times better velocity resolution in the new system. By using a bare fiber probe, we are able to test Green PDV side-by-side with the traditional 1550 nm infrared PDV. We present our design and results. Our results show that indeed we find about three times the velocity resolution with this new system compared to the 1550 nm PDV. LA-UR-19-26782
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关键词
simultaneous green
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