| 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 zZd.U\"2
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clear QUkP& sz
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close all 9y[U\[H
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n1=1.45,n2=1; ;pL!cG@
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theta=0:0.1:90; IPTFx
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a=theta*pi/180; ]?V:+>t=
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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)); M]%dFQ
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); X lX t,
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); AP`1hz4].-
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); X
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arp=angle(rp); UFZO u%Y
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ars=angle(rs); yFd .tQs
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atp=angle(tp); tYgHJ~1L*
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ats=angle(ts); Z0M,YSn z
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figure(1) CL`+\
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subplot(1,2,1); n2 _;:=
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plot(theta,arp,'-',theta,ars,'--','LineWidth',2) }Z\S__\9
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legend('arg(r_p)','arg(r_s)') O46 v
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xlabel('\theta_i') { 2Ew^Li
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ylabel('\phi') _B ^X3EOc
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Z0v?3v}9^
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axis([0 90 -3.5 3.5]) ] ZP!y
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grid on 3mopTzs)
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subplot(1,2,2); Y~!A"$
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) RX_f[
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legend('arg(t_p)','arg(t_s)') j[mII5e7g
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xlabel('\theta_i') t_16icF9U
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ylabel('\phi') )}"`$6:k`
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r| ]YS6
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axis([0 90 -3.5 3.5]) FG!hb ?_1
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grid on
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