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tanh(w/2 sqrt(β^2 −k^2εd) =−εd /εm sqrt((β^2−k^2εm)/(β^2−k^2εd))
其中 w 介于 50 到 250 之间。
β=phi/d d=500纳米 k^2=9.85*10^(-5) εd=1 εm=-17.2355+0.498i(复数)
β=phi/d
d=500纳米
k^2=9.85*10^(-5)
εd=1
εm=-17.2355+0.498i(复数)
请帮帮我。
w=50:0.0001:250; f= sin(w); plot(w,f);
现在也根据需要定义 f 。
也检查一下
http://www.mathworks.com/help/techdoc/ref/plot.html