[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 B4^`Sw  
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1、光疏射向光密 hbfsHT  
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clear tt{`\1q  
h R~v  
close all "wINBya'M  
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n1=1,n2=1.45; rVcBl4&1*g  
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theta=0:0.1:90; ;`X~ k|7K  
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a=theta*pi/180; Wcn[gn<  
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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)); :".w{0l@  
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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)); :XYy7xz<  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); aq ki
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ="3,}qR  
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figure(1) R04J3D|  
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subplot(1,2,1); Q;w
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) f'_M0x  
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legend('r_p','r_s','|r_p|','|r_s|') ] D6|o5  
2yxi= XWZ  
xlabel('\theta_i') *Ru2:}?MpS  
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ylabel('Amplitude') "lrA%~3%[P  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) tl^m=(ZQ  
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axis([0 90 -1 1]) IT&i,`cJ~F  
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grid on j|(:I:]  
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subplot(1,2,2); ]| WA#8_|  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) uA%Ts*aN  
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legend('t_p','t_s','|t_p|','|t_s|') 50Ad,mn<  
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xlabel('\theta_i') JO}?.4B  
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ylabel('Amplitude') jCQho-1QN  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3+9 U1:1[.  
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axis([0 90 0 1]) s.rT]  
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grid on +nQ!4  
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Rp=abs(rp).^2; QptOQ3!  
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Rs=abs(rs).^2; M=[th  
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Rn=(Rp+Rs)/2; 9-93aC.|}  
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Tp=1-Rp;  i6 L  
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Ts=1-Rs; TvM24Orct  
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Tn=(Tp+Ts)/2; ,LZ(^u  
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figure(2) ]1}h8/  
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subplot(1,2,1); "kr,x3 =  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) -|[~sj-p  
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legend('R_p','R_s','R_n') 5~[N/Gl  
:H\&2/j  
xlabel('\theta_i') qHJ'1~?q  
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ylabel('Amplitude') [-58Ezyr  
HlRAD|]\  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ; 8E;  
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axis([0 90 0 1]) ZqP7@fO_%  
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grid on w+Vk3c5uI)  
Rf:<-C0T  
subplot(1,2,2); a2X h>{  
Mr.JLW  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) {XHk6w *-  
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legend('T_p','T_s','T_n') Cya5*U0=  
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xlabel('\theta_i') ~},~c:fF?  
A6i et~h[  
ylabel('Amplitude') |Ng"C`$oqv  
6ZOAmH fs  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) f?0D%pxc}&  
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axis([0 90 0 1]) ~<eVl l=  
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grid on B-dlm8gX  
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2、光密射向光疏 9t}J|09i  
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clear wI>h%y-%!  
?UJSxL  
close all hv{87`L'K(  
qg)qjBQwA  
n1=1.45,n2=1; d
r{1CP  
`[bJYZBc2  
theta=0:0.1:90; oR#my ^  
5y}BCY2=/  
a=theta*pi/180; Otxa<M+"  
P>fKX2eQ-  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); gg(k7e
 
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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)); Y-= /,   
(,U7 R^  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); wsI5F&R,  
S?2YJl8B  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); p>&S7M/9  
Tm\OYYyk  
figure(1) =R2l3-HA=  
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subplot(1,2,1); )6 k1 P  
%}ixgs7*c0  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Pr2;Kp  
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legend('r_p','r_s','|r_p|','|r_s|') V $>"f(  
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xlabel('\theta_i') 8 #Fh>  
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ylabel('Amplitude') ,0h3x$l)  
3AvcJ1  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) z 7@ 'CJ  
4ODX5If  
axis([0 90 -1.5 1.5]) j=\Mx6os  
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grid on ^1Yo-T(R  
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subplot(1,2,2); -aT=f9u  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) wM0E%6 P  
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legend('t_p','t_s','|t_p|','|t_s|') pKnIQa[c  
x.o3iN[=  
xlabel('\theta_i') 7G2vYKC'  

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ylabel('Amplitude') mgxz1d  
I0(8Z]x  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O[L\T  
/XN*)m  
axis([0 90 -0.5 3]) $M-NR||k  
RpjSTV8Tkm  
grid on  J(^ >?d'  
p#z;cjfSt  
Rp=abs(rp).^2; }pt-q[s>  
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Rs=abs(rs).^2; \3M1.Q4$Gr  
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Rn=(Rp+Rs)/2; tfsh!)u?  
98=XG1sQ@  
Tp=1-Rp; C_C$5[~-:  
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Ts=1-Rs; BJ"Ay@D*  
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Tn=(Tp+Ts)/2; f7S^yA[[  
nwhm[AaNs  
figure(2) Y5Ft96o))x  
u^!&{q  
subplot(1,2,1); >d'EInSF  
-}NAb^d  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ?F9hDLX  
[q w  
legend('R_p','R_s','R_n') k-io$  
s!NisF  
xlabel('\theta_i') "i}Z(_7yr  
Dxz5NW4  
ylabel('Amplitude') HK^a:BI  
zo/0b/lQ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) WT I'O  
 on6<l  
axis([0 90 0 1]) AUu5g  
|3aS17yL>  
grid on 3LT+9ad2d  
t7sUtmq  
subplot(1,2,2); ]j72P  
fp,1qzU[k  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) gD,A9a(3  
9UB??049z  
legend('T_p','T_s','T_n') $>nkGb%Kp  
M^Q&A R'F  
xlabel('\theta_i') [8xeQKp4  
nl.~^CP  
ylabel('Amplitude') zsHG=Ee*  
Hf!9`R[  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 2Zv,K-G  
zojuH8  
axis([0 90 0 1]) yp( ?1  
/QV [N  
grid on K]*g, s+  
YK(XS"Kl  
FZM ]o  
D!81(}p  

感谢楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

谢谢了楼主分享

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谢谢了楼主分享

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学习学习 E't G5,/m  

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