| 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 ;4dFL\KU
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clear s;Bh 69
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close all @=z.^I30
h+Lpj^<2a
n1=1.45,n2=1; byP< !p*
yQ^, >eh
theta=0:0.1:90; $XcH.z
WnGi;AGH=1
a=theta*pi/180; #|+4 `Gf^
CN` ~DD{
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 3S#p4{3
U<F|A!Fg
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); GwX hn2
'+l"zK ]L-
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 2 Y9u9;ah
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); C}uzzG6s
zC:Pg4=w]
arp=angle(rp); X'\h^\yOo
r"K! ]Vw
ars=angle(rs); ;:oX e*d
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atp=angle(tp); }oiNgs/N
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ats=angle(ts); qGhg?u"n:
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figure(1) [%yj'
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subplot(1,2,1); PPFt p3C
# X1a v
plot(theta,arp,'-',theta,ars,'--','LineWidth',2) S8kzAT
<-'
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legend('arg(r_p)','arg(r_s)') F#L1~\7
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xlabel('\theta_i') T(Yp90'6
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ylabel('\phi') 6`6 / 2C$%
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) qAd=i0{N
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axis([0 90 -3.5 3.5]) S"?fa)~
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grid on Y+),c14#
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subplot(1,2,2); |.m)UFV
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) Gt?l 2s
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legend('arg(t_p)','arg(t_s)') A15Kj#Oy
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xlabel('\theta_i') |/xx**?
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ylabel('\phi') iFI+W<QR
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) opm _|0
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axis([0 90 -3.5 3.5]) ^$%
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grid on 1|w@f&W"
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