Negative dispersion mirror and mode-locked solid-state laser apparatus including the mirror
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United States of America Patent
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Jun 12, 2012
Grant Date -
Apr 2, 2009
app pub date -
Sep 26, 2008
filing date -
Sep 28, 2007
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Abstract
In a mirror including a substrate and a dielectric multilayer coating structure formed on the substrate, the multilayer coating structure includes two mirror-function layer portions, each formed by a plurality of layers deposited one on another, and a cavity layer that is arranged between the two mirror-function layer portions, and which causes light having a predetermined wavelength to resonate between the two mirror-function layer portions. Further, a dispersion value with respect to the light having the predetermined wavelength is in the range of −600 fs2 to −3000 fs2 and a reflectance with respect to the light having the predetermined wavelength is in the range of 97% to 99.5%.
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