[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_}6#;  
]kXWeY<  
1、光疏射向光密 98)C 7N'  
2X[oge0@  
clear ]v0Z[l>yf  
q2r$j\L%  
close all &XdTY +  
Kj
"X!-  
n1=1,n2=1.45; >_xuXEslUz  
H] g=( %ok  
theta=0:0.1:90; NjT*5 .  
,[T/O\k  
a=theta*pi/180; O_ZYm{T[7  
r{t6Vv2J  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); zd)QCq  
K,JK9)T  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); \gkhSL
q  
6D[
]Jf,9  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); <5mv8'{L  
 BdiV  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); lz::6}  
^a`3)WBv8  
figure(1) Ue60Mf
  
(hdu+^Qj=  
subplot(1,2,1); dCS f$5  
j}B86oX  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) }IZw6KiN  
-|^)8  
legend('r_p','r_s','|r_p|','|r_s|') b1cVAfUP  
Ncsh{.
  
xlabel('\theta_i') 4xq|  
i9De+3VqKK  
ylabel('Amplitude') Z~QLjv&$/r  
@{q<"hT  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 0}qlZFB  
<K<#)mcv  
axis([0 90 -1 1]) 09anQHa  
\lm]G7h  
grid on fqY'Uq$=  
,c^nW  
subplot(1,2,2); qljsoDG  
$,
]U~7S  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 9(q(;|;Hp  
d23=
WNn  
legend('t_p','t_s','|t_p|','|t_s|') nDXEm6|e  
TwI s_r:  
xlabel('\theta_i') YI;iG[T,&  
TEY~E*=}$  
ylabel('Amplitude') _K!.TM+9  
 U-4F  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) (YYg-@IO  
7L6L{~8 W  
axis([0 90 0 1]) mICEJ\`x  
5\XD/Q M  
grid on ;5.&TQT  
,!@MLn  
Rp=abs(rp).^2; #"rK1Z  
ZK'46lh  
Rs=abs(rs).^2; ~gff{Nzk  
r *6S1bW  
Rn=(Rp+Rs)/2; Ze8.+Ee  
}.E^_`  
Tp=1-Rp; e%L[bGW'  
YfB)TK\W9/  
Ts=1-Rs; 1S!}su,uH  
1n!:L!,`  
Tn=(Tp+Ts)/2; '!`\!=j-`  
[bP^RY:  
figure(2) V0_
tk"  
@WS77d~S  
subplot(1,2,1); _Iav2=0Wi  
gee~>l  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ?..BA&zRk  
th[v"qD9G  
legend('R_p','R_s','R_n') t~j6wsx;  
UAhWJ$(C  
xlabel('\theta_i') 6{]F#ig=  
@}g3\xLiK  
ylabel('Amplitude') fxPg"R!1i  
3MNM<Ih  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4xmJQ>/  
8I
/3T  
axis([0 90 0 1]) ,P`NtTN-  
Fy Ih\  
grid on 0t^FM<7G  
5kTs7zJ^  
subplot(1,2,2); G/Sp/I<d  
M=uT8JB  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2)
eN,9N]K  
}8
Y! -qX  
legend('T_p','T_s','T_n') ,GYQ,9:  
.
waw=C  
xlabel('\theta_i') SK'h!Ye5Z  
.6C/,rQ?c  
ylabel('Amplitude') +`k30-<P  
ftxL-7y%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ,.QJS6Yv  
&=kv69v  
axis([0 90 0 1]) F6[F~^9D  
<z,)4z++  
grid on oc( '!c  
dz([GP'-*  
vnvpb! @Q  
>pfeP"[(3  
K9k!P8Rd  

2、光密射向光疏 "frZ%mv  
0AQ4:K
V(Y  
clear [_)`G*X(N  
hD ~/ywS&  
close all xO )c23Z)]  
O0#[hY,  
n1=1.45,n2=1; vzg^tJ  
2L4[~>  
theta=0:0.1:90; N^rpPq  
p<r<Y%  
a=theta*pi/180; ISpV={$Zd  
,_kw}_n=  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 'lZlfS:Z8  
_C/|<Ot:  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); .A< HM}   
3k)xzv%r`  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); QAV6{QShj  
aA|{r/.10K  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); OCx'cSs-=  
;\0|1Eem`  
figure(1) HqWWWCWal  
<\^o
  
subplot(1,2,1); VxN#\Di&  
hH1Q:}a  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Z5q%L!4G  
l[T
-Ak  
legend('r_p','r_s','|r_p|','|r_s|') E'f7=
ChNF  
U7x  
xlabel('\theta_i') @GKDSS4jv  
1$T`j2s  
ylabel('Amplitude') 2X2Ax~d@  
%]LoR$|Y  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |URfw5Hm  
M +OVqTsFU  
axis([0 90 -1.5 1.5]) /+92DV  
daKZ*B|  
grid on #'&-S@/nQs  
` 7iA?;  
subplot(1,2,2); QlGK+I>y;  
fYP,V0P  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) B9"o Ru^}  
v)du]  
legend('t_p','t_s','|t_p|','|t_s|') u<:uL  
(sKg*G2  
xlabel('\theta_i') V4Rs  
Sn-#Y(>]o0  
ylabel('Amplitude') "QOQ  
gV@xu)l  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) pqO3(2F9
 
5>9Q<*  
axis([0 90 -0.5 3]) }SSg>.48w  
i 7]o[  
grid on nr]=O`Mvh  
Ms6;iW9  
Rp=abs(rp).^2; %h ;oi/pe  
uN<=v&]q  
Rs=abs(rs).^2; c/K#W$ l  
z#Jw?K_  
Rn=(Rp+Rs)/2; D/=05E%[81  
P[
o"%NZ'  
Tp=1-Rp; !6|_`l>G,  
2*D2jw  
Ts=1-Rs; {O _X/y~  
k
H65k (  
Tn=(Tp+Ts)/2; -4QZ/*  
co\?SgE35  
figure(2) 28^/By:J  
h:pgN,W}  
subplot(1,2,1); z\tY A  
IA0vSF:  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) 4}N+o+  
BPkMw'a:  
legend('R_p','R_s','R_n') ;*qXjv& K  
uO1^Q;F  
xlabel('\theta_i') ? /!Fv/  
R,D/:k'~k  
ylabel('Amplitude') {($mLfC4  
Qf0P"s`  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ]rGd!"q  
lJAzG,f  
axis([0 90 0 1]) %. ((4 6)  
nycJZ}f:wP  
grid on ~*EipxhstJ  
bP$e1I3`  
subplot(1,2,2); EUw4$Jt^p  
Aa1#Ew<r  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) S3x^#83  
xqk(id\&  
legend('T_p','T_s','T_n') /TbJCZ  
!"phz&E5ah  
xlabel('\theta_i') 6p;Pf9 f  

'(r?($s  
ylabel('Amplitude') h(q4 B~  
;,Vdj[W$>  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) f|~'(~Sr  
d3EN0e+^  
axis([0 90 0 1]) WuVs
W3@  
C|H`.|Q  
grid on KUX6n(u  
 @B{  
R5MN;xG^  
&z3_N  

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 WG*S:_?  

Thanks