[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 \kzxt/Ow  

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1、光疏射向光密 W`eYd|+C  
'hVOK(o0  
clear <gZC78}E  
Fng":28o  
close all I:]s/r7  
b&*^\hY9b  
n1=1,n2=1.45; A0oC*/  
JXftQOn  
theta=0:0.1:90; :&2RV_$>=  
.<u<!fL2  
a=theta*pi/180; gpHI)1i'H  
MGX,JW>L  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); [uc;M6o}?  
=Q.2:*d.  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); }f^K}*sK$5  
;T"}dJel#  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); fF_1ZKx+#!  
X~P0Q  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); |I^\|5  
dB<BEe\$g.  
figure(1) n4>
 
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subplot(1,2,1); Mq[;:  
=XQ3sk6U  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) wx}\0(]Gl  
C(}9  
legend('r_p','r_s','|r_p|','|r_s|') ^^jF*)DT@  
H3QAIsGS  
xlabel('\theta_i') @K4} cP  
MZn7gT0  
ylabel('Amplitude') '
RQZU*8  
O*H:CW  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <H}"xp)j0  
RW,ew!Z  
axis([0 90 -1 1]) ;?=nr5;q  
<C+:hsS=  
grid on Tx/  
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subplot(1,2,2); 3hO`GM  
]pB0bJAt  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) v^[tK2&v  
`Wn0v2@a(~  
legend('t_p','t_s','|t_p|','|t_s|') p
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asQ pVP  
xlabel('\theta_i') [53@'@26  
C(?>l.QGw  
ylabel('Amplitude') }YU#}Ip@  
hB P]^~(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^T(l3r  
H",yVD  
axis([0 90 0 1]) VG&|fekF  
?7^('  
grid on eff6=DP  
/y@$|DI1  
Rp=abs(rp).^2; U+@yx>!  
Mr2dhSQ!  
Rs=abs(rs).^2; e>nRJH8pK  
mC>7l7%  
Rn=(Rp+Rs)/2; >p\IC  
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Tp=1-Rp; r.-NfK4  
CyzvQfpZr  
Ts=1-Rs; [%P_ Y/  
y"e'Gg2  
Tn=(Tp+Ts)/2; .A\9|sRZ5  
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figure(2) hAG++
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subplot(1,2,1); (W=z0Lqu  
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c`W  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) j
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Ulj2Py}  
legend('R_p','R_s','R_n') Xa[gDdbL  
W>wE8? _,  
xlabel('\theta_i') ;]Y.2 J  
Ywr^uy1V,/  
ylabel('Amplitude') UgSSZ05Lq  
b]4yFwb  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) R/ l1$}  
ll[U-v{  
axis([0 90 0 1]) TL]2{rf~  
wbd>By(T1  
grid on 7k+UCiu>  
qFe|$rVVIl  
subplot(1,2,2); q6H90Zb  
+s1+;VUs3  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) -$dnUXFsj[  
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legend('T_p','T_s','T_n') eoTOccb!  
3|9)A+,#  
xlabel('\theta_i') Q&`$:h.~  
A3$ rPb8  
ylabel('Amplitude') )l[ +7  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^4B6IF*  
j#-ZL-N  
axis([0 90 0 1]) D~NH 4
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grid on +r4US or  

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2、光密射向光疏 uW Q`  
gqZ7Pro.  
clear FE/&<g0,:  
F[RhuNa&'W  
close all 5A~w_p*}  
\ {"8(ELX  
n1=1.45,n2=1; 7D9R^\K  
GlQ=M)E  
theta=0:0.1:90; :T%,.sH  
J +<|8D  
a=theta*pi/180; Lm,io\z  
F3';oyy  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 0S/
&^  
>4LX!^V"  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 1;.}u=8  
/~gM,*  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 6Oo'&3@  
/xrt,M@  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); iLv"ZqGrw  
,2&'8:B  
figure(1) ^C<dr}8  
^]E| >~\  
subplot(1,2,1); >s[}f6*2@  
[h%_`8z  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 
Wd~}O<"  
GN=F-*2  
legend('r_p','r_s','|r_p|','|r_s|') Srol0D I  
'Nfg%)-N  
xlabel('\theta_i') F^A1'J  
~X`vRSrH  
ylabel('Amplitude') D=9x/ ) *G  
ELY$ ]^T  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) P5] cEZ n  
\f /<#'  
axis([0 90 -1.5 1.5]) r'xa'6&  
^B1vvb  
grid on nqiy)ZN#R  
&S3szhe  
subplot(1,2,2); -VRu^l#  
JhB{aW>  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) R8":1 #&  
Z!LzyCVl  
legend('t_p','t_s','|t_p|','|t_s|') Pw$'TE}  
hDmVv;M:  
xlabel('\theta_i') aASnk2DFd  
&^&k]JBaV  
ylabel('Amplitude') _ogT(uYyr  
CZwZ#WV6  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) x%cKTpDh!  
M{O2O(  
axis([0 90 -0.5 3]) :Tj,;0#/  
;YK^&!N  
grid on e^Jy-?E  
/SN.M6~  
Rp=abs(rp).^2; r"5]U`+  
w :^b3@gd  
Rs=abs(rs).^2; fFSW\4JD=  
!H?#~{ W}  
Rn=(Rp+Rs)/2; #;?z<  
Z)6bqU<LQE  
Tp=1-Rp; `@Kh>K  
9J2%9,^  
Ts=1-Rs; G=~T)e  
;'=!Fv  
Tn=(Tp+Ts)/2; p(f)u]1`  
m;Sw`nw?  
figure(2) dzbzZ@y  
0m*0I>  
subplot(1,2,1); J5|Dduv  
d/R:-{J)c  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) eDTEy;^o  
0 w@~ynW[  
legend('R_p','R_s','R_n') kw=+"U  
QdDdrR^&  
xlabel('\theta_i') m[Zz(tL  
Ev$?c9*>  
ylabel('Amplitude') L$(W* PG}  
IybMO5Mwn  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) n:k~\-&WJ  
OmKT}D~ 4  
axis([0 90 0 1]) ~!)_3o  
%li'j|  
grid on Q&n
  
/i^b;?/1  
subplot(1,2,2); Y\9uR
!0  
7NJ1cQ-}t  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) f}XUxIQ-<  
G]q6Ika  
legend('T_p','T_s','T_n')
E;-R<X5n  
W0gaOew(^  
xlabel('\theta_i') eeB^c/k(P  
NGS/lKz  
ylabel('Amplitude') 0YIvE\-  
U_M> Q_r(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) xj%
h-@o6  
a*%>H(x  
axis([0 90 0 1]) $ n 7dIE  
;QgJw2G  
grid on gX6'!}G
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trgj]|?M  
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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 Nb(se*Y#  

Thanks