Some people hate to revisit projects that are done and dusted. We get that; it’s a little like reading a book you’ve already read when there are so many others to choose from. But rereading a book ...
Defining laser-beam power density. 2. Power spectral density is simply the Fourier transform of the signal. When we have a discrete case, as in Figure 2, the PSD can be calculated by using the fast ...
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