| 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 Kh4rl)L*+%
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clear :4[>]&:u3
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close all o% Q7 el$f
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n1=1.45,n2=1; 4_ >;|2
M*n94L=Sg&
theta=0:0.1:90; OU` !c[O
vG6*[c 8
a=theta*pi/180; v(0ujfSR0
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); "
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.= ~2"P
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); aC' 6
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); v B~ VJKD
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); Iu0GOy*[
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arp=angle(rp); _l]
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ars=angle(rs); bZUw^{~)D
d]K8*a%[-
atp=angle(tp); ~Fo2M wE2~
\s)$[pAF
ats=angle(ts); #k/T\PQ0s
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figure(1) vv) O+xt
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subplot(1,2,1); f'"PQr^9
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plot(theta,arp,'-',theta,ars,'--','LineWidth',2) pk'd& .
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legend('arg(r_p)','arg(r_s)') +8 "8s
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xlabel('\theta_i') P()n=&XO6
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ylabel('\phi') y+$vHnS/jC
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) OXZK|C;M}
x]hG2on!
axis([0 90 -3.5 3.5]) Q ~ N q 5[
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grid on [vuikJP>1k
rFt +Y})
subplot(1,2,2); D|$0~1y
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) ^; U }HAY
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legend('arg(t_p)','arg(t_s)') ;D-k\kv
Hr]
xlabel('\theta_i') ]X7_ji(l,
Q$: ,N=%
ylabel('\phi') iu{;| E
q~iEw#0-L
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $z)egh(z
3qu?qD
axis([0 90 -3.5 3.5]) 2YQBw,gG
xrY >Or
grid on ettBque
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[attachment=80482]
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