| 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 y.LJ 5K$&a
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clear fnUR ]5\tc
2`o}neF{
close all Jhyb{i8RR
SseMTw:
n1=1.45,n2=1; w K7wu.
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theta=0:0.1:90; wlh V!a0>
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a=theta*pi/180; S!< 1C Fh
kJ JUu
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); KXgC]IO~
Z(8'ki
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 9 pGND]tIi
+ !I7(gL
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); g* NKY`,
e*Gm()Vu,
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); b,U3b})(
1 D0_k
arp=angle(rp); 6!,Am^uXM
C^ hHt,&
ars=angle(rs); `FP)-^A8
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atp=angle(tp); vFK&63
uF!3a$4]
ats=angle(ts); [\ M=w7
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figure(1) ;JcOm&d/hk
z|Hc=AU8y
subplot(1,2,1); LWB"}#vt
1GnT^u y/
plot(theta,arp,'-',theta,ars,'--','LineWidth',2) N
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legend('arg(r_p)','arg(r_s)') n.{+\M6k
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xlabel('\theta_i') ?Jlz{ms I
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ylabel('\phi') wp!< u
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) S^@I 4Z
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axis([0 90 -3.5 3.5]) _jw A_
8+&] q#W3
grid on ^N!l$&=
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subplot(1,2,2); OXC7
m
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) =?`5n|A*
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legend('arg(t_p)','arg(t_s)') y)W.x R
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xlabel('\theta_i') <} RU37,W
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ylabel('\phi') <qzHMy Ai
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) / ;M0tP
TxhTK5#f
axis([0 90 -3.5 3.5]) ?-,v0#
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grid on A/W-'%+`
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