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How to express the time-averaged extinction Poynting vectors ?

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Extinction spectra are calculated by integrating the time-averaged extinction Poynting vectors Sext (i.e. electromagnetic power flow) over an auxiliary surface enclosing the Au NP dimer or the isoalted NP. But I don't konw how to express Sext and formula(1)and (2)in comsol? The formula is attached.



0 Replies Last Post 30 lug 2019, 22:36 GMT-4
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Hello John Zhu

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