| 200833 |
2017-11-26 22:37 |
利用MATLAB光学仿真（2）
计算光波由光密入射到光疏介质时相位变化 n'rq
h ! B{7J
clear qMaO1cE\
v9T 3=
close all ~HY)$Yp;
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n1=1.45,n2=1; 6@aH2+4+
Eu |/pH=:
theta=0:0.1:90; U" @5R[=F-
g.\b@0Uy'
a=theta*pi/180; :7@[=n
CW;zviH5
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ( w4XqVT
<B%wq>4S
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); THl: >s
a zZ|T{S
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ImQ -kz?b
m R.j8pi
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); [KUkv
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arp=angle(rp); gvVy0nJI~
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ars=angle(rs); "]^ U(m>f
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atp=angle(tp); do`'K3a"
8y<mHJ[B
ats=angle(ts); %n]jsdE^|
D ~inR3(}
figure(1) Gb2|e.z
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subplot(1,2,1); QM!UMqdj
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plot(theta,arp,'-',theta,ars,'--','LineWidth',2) \*PE#RB#6
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legend('arg(r_p)','arg(r_s)') [6@bsXiw
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xlabel('\theta_i') )fXxkOd
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ylabel('\phi') vkLt#yj~
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,! SbH
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axis([0 90 -3.5 3.5]) Z=hn }QY.(
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grid on [p\xk{7Y
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subplot(1,2,2); x1
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) Z$0mK w
qZQm*q(jM
legend('arg(t_p)','arg(t_s)') 7d{xXJ-
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xlabel('\theta_i') h*4w i.-
5 Bcmz'?!
ylabel('\phi') 9U9ghWH8
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r?`nc6$0|
a"+ VP> 4
axis([0 90 -3.5 3.5]) q q^[(n
WnQ'I=E#~
grid on : Q,O:
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[attachment=80482]
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