[分享]利用MATLAB光学仿真（1） [复制链接]

利用菲涅尔公式计算光波在两种介质表面折反射率及折反射能流密度 1jmhh!,  
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1、光疏射向光密 w& RpQcV  
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clear {yyg=AMz  
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close all <O$'3_S"D  
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n1=1,n2=1.45; q){]fp.,@  
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theta=0:0.1:90; l^`!:BOtR  
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a=theta*pi/180; .M>u:,v  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 3UC8iq*  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); `ss]\46>  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); n^Z?u9VR  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); A94VSUDA:  
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ND'c(5  
figure(1) r.ajw&J2  
%aw/Y5  
subplot(1,2,1); WgPL4D9=  
n;rOH[P  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) _ux6SIyp`  
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legend('r_p','r_s','|r_p|','|r_s|') R&xD|w8UjM  
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xlabel('\theta_i') +}+hTY$a  
zx'`'t4~  
ylabel('Amplitude') Olxb`x  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }= <!j5:  
t1Jz?Ix6%  
axis([0 90 -1 1]) J"83S*2(j  
0>e>G(4(8  
grid on d'3'{C|kk  
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subplot(1,2,2); :m$%D]WY  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) O_iX1@SW  
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legend('t_p','t_s','|t_p|','|t_s|') uk'<9g^  
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xlabel('\theta_i') '6WDs]\  
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ylabel('Amplitude') +?@qux!  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) '\_)\`a|  
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axis([0 90 0 1]) AT9SD vJ  
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grid on cEQa 6  
VmT5?i   
Rp=abs(rp).^2; & {/u>,  
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Rs=abs(rs).^2; &GZR-/  
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Rn=(Rp+Rs)/2; Q
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Tp=1-Rp; hBqu,A  
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Ts=1-Rs; O71rLk;  

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Tn=(Tp+Ts)/2; S8cFD):q  
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figure(2) e^an` </{  
VsMNi#?  
subplot(1,2,1); ZT8j9zs  
A3$b_i@P  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 1e+?O7/  
lKwcT!Q4  
legend('R_p','R_s','R_n') b>(lF%M  
;7A,'y4f  
xlabel('\theta_i') P3|<K-dFAK  
[eN{
Ft0x  
ylabel('Amplitude') `->k7a0<b1  
y
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Yt'o#"R)  
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axis([0 90 0 1]) x M[#Ah)  
.0ZvCv:>  
grid on $g^;*>yr  
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subplot(1,2,2); ]>,|v,i =  
KAzRFX),  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ZSSgc0u^?  
]]ZBG<#  
legend('T_p','T_s','T_n') F{+`F<r  
BkeP?X  
xlabel('\theta_i') jdp:G  
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ylabel('Amplitude') A%O#S<sa  
iy"Kg]  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) e-CW4x  
iD`XD\.?  
axis([0 90 0 1]) Sx"I]N
  
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grid on 9 JtG&^*  
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2、光密射向光疏 4vS!99v)  
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clear sQs5z~#51*  
CK</2w+  
close all $O8V!R*  
y9hZ2iT  
n1=1.45,n2=1; u'1=W5$rK  
{eEWfMKIn  
theta=0:0.1:90; uek3Y[n  
\[EWxu  
a=theta*pi/180; dCTpO  
!ei20@  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); :t^})%  
5I,X#}K[  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 55b |zf  
-Wk"o?}q  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); HPKyAcS\  
MA#!<b('  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); vP?S0>gh  
Yj\yO(o/  
figure(1) vh8Kd' y  
Xy<f_  
subplot(1,2,1); ! hr@{CD  
_|:bac8
pL  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) {{%8|+B  
|7x^@i9w  
legend('r_p','r_s','|r_p|','|r_s|') R}9jgB  
3uG5b8?  
xlabel('\theta_i') R7c)C8/~  
$yFuaqG`Wo  
ylabel('Amplitude') 5yi q#  
z.HNb$;  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ibs"Iv34  
>C&<dO#i  
axis([0 90 -1.5 1.5]) G3^]Wwu  
mm<iT59  
grid on 4(GgaQFO?  
Q8cPKDB  
subplot(1,2,2); an[~%vxw}  
D@W3;T^  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) !BuJC$  
fZ:rz;tM  
legend('t_p','t_s','|t_p|','|t_s|') 8z8SwWS?  
=S8>  
xlabel('\theta_i') :vyf-K74M  
Sc3M#qm_  
ylabel('Amplitude') .hNw1~Fj  
B2qq C-hw?  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 6x,=SW@4  
W(lKR_pF  
axis([0 90 -0.5 3]) DK_v{R  
x0$:"68PW  
grid on i=H>D  
Le:mMd= G  
Rp=abs(rp).^2; L9?/ -@M  
SH$cn,3F8  
Rs=abs(rs).^2; 0+y~RTAVB  
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Rn=(Rp+Rs)/2; ^_h
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Tp=1-Rp;
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Ts=1-Rs; Q<-%jBP  
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Tn=(Tp+Ts)/2; aa%&&  
=,8Eo"~\  
figure(2) VD&3%G!  
lF"(|n"R  
subplot(1,2,1); }cK~=@7tK  
p't:bR  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) q;0&idYC  
!v4j`A;%  
legend('R_p','R_s','R_n') ^pV>b(?qw  
RHl=$Hm.%  
xlabel('\theta_i') zpr@!76  
jo3}]KC !  
ylabel('Amplitude') mS~
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dtnet_j  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /j69NEl  
j484b2uj1  
axis([0 90 0 1]) U;
Ll.BFP  
D<3V#Opw  
grid on V]kGcS}  
BS,5W]ervE  
subplot(1,2,2); hB}h-i(u  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) xgT~b9  
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legend('T_p','T_s','T_n') zPh\3B  
{+6D-rDw  
xlabel('\theta_i') "3i80R\w`F  
$n#Bi.A j  
ylabel('Amplitude') $FusDdCv3  
YyJ{  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) MjXE|3&  
jy(+ 0F  
axis([0 90 0 1]) *zVLy^L_8  
vuo'"^ =p0  
grid on M|({ 4C  
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这个在《MATLAB在光学中的应用》这本书里都有

谢谢了楼主分享

thanks

谢谢了楼主分享

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学习学习 N/K=Ygv.  

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