| 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 I g-VSQ
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clear f:"es: Fb
i]hFiX
close all }#EiL
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fgn*3 pg
n1=1.45,n2=1; e#kPf 'gL
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theta=0:0.1:90; LL9Mt y,
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a=theta*pi/180; A{9Hm:)
go2:D#mf
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); YIgzFt[L
VC>KW{&J0
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); @WBy:gV"
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); G*ym[
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); q+gqa<kM
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arp=angle(rp); W.zA1S
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ars=angle(rs); V%e'H>EC
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atp=angle(tp); MfeW|
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ats=angle(ts); "-v9V7KCM
1/a*8 vuGh
figure(1) <MvFAuAT
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subplot(1,2,1); JguE# ob2
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plot(theta,arp,'-',theta,ars,'--','LineWidth',2) 4 "l(rg
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legend('arg(r_p)','arg(r_s)') x-y=Jor
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xlabel('\theta_i') ' 'Ui Q
eg?vYW
ylabel('\phi') 86IAAO`#
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /=m=i%& #
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axis([0 90 -3.5 3.5]) u@|G Q XC
=\: YNP/
grid on N1#*~/sXh
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subplot(1,2,2); q3s cz
y3;G<9K2c]
plot(theta,atp,'-',theta,ats,'--','LineWidth',2) P-^Z7^o-bX
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legend('arg(t_p)','arg(t_s)') 4~G9._
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xlabel('\theta_i') J, {sRb%
Gt6$@ji4u
ylabel('\phi') $ZQP f
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \8_&@uLm
dx Mz!
axis([0 90 -3.5 3.5]) ~(I\O?k>H
LAMTf"a
grid on 6wnfAli.
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[attachment=80482]
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