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How to set permittivity in the modulated region of a volume holographic grating?

Posted Dec 22, 2014, 4:38 a.m. EST 0 Replies

JIngjing Guo
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For a volume holographic grating, permittivity in the modulated region is composed of an average dielectric constant and a modulation, which is expressed as
ε(x, z)=ε0+△ε·cos[K(x·sinφ+z·cosφ)].
Does anybody kown how to set this fomulation in the Material interfere?
Thanks a lot!!
0 Replies Last Post Dec 22, 2014, 4:38 a.m. EST
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