| 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 [q z6_WOo
#% 5>}$
clear 3 R m$
M3'' xrpC
close all -} (W=r\
IO+ z:D{
n1=1.45,n2=1; #df43_u
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theta=0:0.1:90; !\m.&lk'^
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a=theta*pi/180; 5IepVS(>?v
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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)); 3"".kf,O5e
}LRAe3N%8
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); n s3k{l#
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); v6GWD}HH,
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); kxP6#8*:
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arp=angle(rp); Zwc b 5\Q
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ars=angle(rs); S$#Awen"@
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atp=angle(tp); rEViw ?^KT
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ats=angle(ts); pxN'E;P-
gp}S 1
figure(1) (X8N?tJ
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subplot(1,2,1); _ k}b
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plot(theta,arp,'-',theta,ars,'--','LineWidth',2) su VS!}
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legend('arg(r_p)','arg(r_s)') Z`
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xlabel('\theta_i') [`&cA#C9Yp
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ylabel('\phi') QK72 F
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) lRrO oON
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axis([0 90 -3.5 3.5]) ~5|a9HV:
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grid on >ko;CQR
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subplot(1,2,2); ?]})Xf.A
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plot(theta,atp,'-',theta,ats,'--','LineWidth',2) YONg1.^!(
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legend('arg(t_p)','arg(t_s)') Y}Ov`ZM!r
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xlabel('\theta_i') JvG t= v
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ylabel('\phi') &O'yhAP] j
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) c(~M<nL0
\!% 3giD5!
axis([0 90 -3.5 3.5]) d<whb2l
o;O_N^ _W
grid on %jkd}D
X@cV']#V
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