| 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 qXkc~{W_
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clear OO] ~\j
OOGqt A ;
close all A{Z=[]r1`E
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n1=1.45,n2=1; :z56!qU
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theta=0:0.1:90; }L{en
-wy$ ?Ha
a=theta*pi/180; jmmm0,#D
Rgw\qOb
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [2gK^o&t
4iBp!k7
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); @H"~/ m_o
0"(5\T
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); z[ B*sbS
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); o> W H;EBL
q%w\U AqA
arp=angle(rp); $U<so{xn%
<- Q=h?D
ars=angle(rs); "D'A7DA
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atp=angle(tp); fmXA;^%
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ats=angle(ts); Ig t:M[
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figure(1) SEq_37
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subplot(1,2,1); d_BECx <\
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plot(theta,arp,'-',theta,ars,'--','LineWidth',2) Wjn1W;m&g
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legend('arg(r_p)','arg(r_s)') DnS#
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xlabel('\theta_i') X(U
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ylabel('\phi') Q<3=s6@T
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~^cx a%
9}Ud'#E
axis([0 90 -3.5 3.5]) m!3b.2/h
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grid on o7)< pfif
LF vKF .
subplot(1,2,2); Xp @8 v u
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) 3JV ENn9
[, Q(~Qb
legend('arg(t_p)','arg(t_s)') ?Y 7'OlO
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xlabel('\theta_i') #5-5N5-1
REUWK#>
ylabel('\phi') mr
dG- t(k
bwR_ uF
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4bLk+EY4A
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axis([0 90 -3.5 3.5]) ,ef"S
r
0g}+%5]yg
grid on kY*3)KCp
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