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Calculating grad(|E|^2)

Posted 13 mars 2014, 03:21 UTC−4 RF & Microwave Engineering Version 4.4 0 Replies

Soonwoo Hong
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I have tried to calculate the gradient force on a gold nano particle exerted by a 785-nm laser, and the equation of the gradient force has grad(|E|^2). However, I have known that grad() mean to differentiate something like a vector, not a scalar, |E|^2 must be scalar, isn't it?

IN SHORT, How can I calculate grad(|E|^2)?
0 Replies Last Post 13 mars 2014, 03:21 UTC−4
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