[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 s<b7/;w'  
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1、光疏射向光密 0=B5 =qyw  
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clear ;j=1 oW  
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close all 9x!y.gx  
keOW{:^i  
n1=1,n2=1.45; Vd4osBu{fY  
%*OJRL`  
theta=0:0.1:90; i"xDQ$0G6  
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a=theta*pi/180; }b`*%141  
H[ q{R  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); I>aa'em  
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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)); /3]|B%W9  
pZxL?N!  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); $ *A3p  
d}_c(  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); lQ"i]};<D  
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figure(1) Hea<!zPH  
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subplot(1,2,1); T*yveo&j  
[<QWTMjR  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) GwBQ pNjy  
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legend('r_p','r_s','|r_p|','|r_s|') S!_?# ^t  
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xlabel('\theta_i') sfE8b/Z8  
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ylabel('Amplitude') JB@VP{  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) o"[bIXf-h  
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axis([0 90 -1 1]) mC92J@m/L!  
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grid on J_|x^  
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subplot(1,2,2); C&kl*nO  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) "b4iOp&:=  
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legend('t_p','t_s','|t_p|','|t_s|') T0%TeFY  
lVtn$frp  
xlabel('\theta_i') /g'-*:a  
r:4IKuTR  
ylabel('Amplitude') ;bX ~4O&v+  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) N'P,QiR,z<  
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axis([0 90 0 1]) f*{;\n(.t  
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grid on c0q)  
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Rp=abs(rp).^2; @;D}=
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Rs=abs(rs).^2; -Jo :+

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Rn=(Rp+Rs)/2; 9Pk3}f)a  
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Tp=1-Rp; ZM`P~N1?)g  
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Ts=1-Rs; h^kNM8  
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Tn=(Tp+Ts)/2;
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figure(2) 5|G3t`$pa  
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subplot(1,2,1); #r)1<}_e#  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) XqS*;Zj0  
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legend('R_p','R_s','R_n') *M<BPxh0w]  
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xlabel('\theta_i') a& aPBv1  
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ylabel('Amplitude') tr9Y1vxo{  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) RG r'<o)  
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axis([0 90 0 1]) pUMB)(<k  
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grid on ZHD0u)ri=J  
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subplot(1,2,2); ^Xy$is3  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) =>}.W:=  
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legend('T_p','T_s','T_n') Rk jKIa  
KR+BuL+L  
xlabel('\theta_i') JRjMt-7H_  
9#T%bB"J  
ylabel('Amplitude') &#PBww  
Ms'TC;&PS  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) P[I*%  
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axis([0 90 0 1]) @S"pJeP/f  
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grid on %f_OP$;fc  
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2、光密射向光疏 or%gTVZ  
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clear 3r-VxP 5n  
Cb )=n6  
close all x?f0Hk+  
jW1YTQ  
n1=1.45,n2=1; 0/SC  
cbh#E)['  
theta=0:0.1:90; 9QOr,~~s  
dI_r:xN  
a=theta*pi/180; t(j_eq}J  
8_<&f%
/  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); uP(B<NfL:'  
cVB|sYdf  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 4j. |Y  
$#G6m`V  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); |B%BwE  
)RA\kZ"  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); K9C@dvFH  
dXhCyr%"6  
figure(1) 1#>&p%P!  
tKG;k"wk  
subplot(1,2,1); Q/QQ:t<XUi  
|{7e#ww]  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) MK-a$~<  
RRS~ xOg  
legend('r_p','r_s','|r_p|','|r_s|') Dm|gSv8d,  
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xlabel('\theta_i') ` $.X[\*U  
%z-dM` i  
ylabel('Amplitude') ZRXI?Jr%  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) qE#&)  
wGOMUWAt  
axis([0 90 -1.5 1.5]) & %N(kyp  
*=$[}!YG  
grid on IwTr'}XIw  
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subplot(1,2,2); 6P%<[Z  
lFiq<3Nk  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;f".'9 l^
 
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legend('t_p','t_s','|t_p|','|t_s|') x1 ;rb8  
%PQldPL8  
xlabel('\theta_i') JdaFY+f:  
/e.FY9  
ylabel('Amplitude') 
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o5N]((9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) \3t,|%v  
@DfkGm[%  
axis([0 90 -0.5 3]) ; @
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grid on 2UU2Vm_6  
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Rp=abs(rp).^2;
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Rs=abs(rs).^2; YHETI~'j.  
lp:_H-sG  
Rn=(Rp+Rs)/2; ((-aC`  
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Tp=1-Rp; KH>Sc3p  
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Ts=1-Rs; 9Tzc(yCY  
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Tn=(Tp+Ts)/2; pGY [f@_x-  
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figure(2) E=;BI">.  
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subplot(1,2,1); rumAo'T/%  
!(B_EM  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) =RQ )$ %  
aN>U. SB  
legend('R_p','R_s','R_n') 8BHL  
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xlabel('\theta_i') NOF?LV  
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ylabel('Amplitude') I") H~  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) C}Rs[  
jz %;4e
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axis([0 90 0 1]) ?O!]8k`1$  
W=~id"XtJ  
grid on <Cu'!h_nL  
:0B |<~lX  
subplot(1,2,2); La\Q'0  
Mx^y>\X)v  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) j?=VtVP  
$=\d1%_R|  
legend('T_p','T_s','T_n') .JNcY]V#  
'n>K^rA  
xlabel('\theta_i') vB Sm=M  
9Kc0&?q@D  
ylabel('Amplitude') {V.Wk  
vZ:G8K)o(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +z+F-  
7Aqn[1{_O  
axis([0 90 0 1]) XxhsPFv  
=\M)6"}y}  
grid on :b"=KQ  
I9;xzES  
VxNXd?  
V:(y*tFA  

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

thanks

谢谢了楼主分享

学习学习

学习学习 ~b6GrY"vB  

Thanks