[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 _ Vo35kA  
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1、光疏射向光密 'zUWO_(  
ab@1JAgs  
clear +[lv `tr  
A0A]#
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close all }w|a^=HAp  
S.! n35  
n1=1,n2=1.45; 5Z<y
||=  
>[qoNy;  
theta=0:0.1:90; Zr#\>h'c  
?c6`p3p3L  
a=theta*pi/180; zHg1K,t:  
gK#G8V-,  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); a49xf^{1"i  
IE0hC\C}  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); cvk$ I"q+  
?]]7PEee*  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 2zlBrjk;  
p_:bt7 B  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 6|@\\\l  
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figure(1) MRb6O
!$`C  
wj$WE3Y  
subplot(1,2,1); `%<^$Ng
;  
_Z0O]>KH  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) 2t3DQ  
C_rA'Hy  
legend('r_p','r_s','|r_p|','|r_s|') >&?k^nI}J  
6^#@y|.  
xlabel('\theta_i') \ 0J&^C  
RbN# dI'  
ylabel('Amplitude') S uo  
YacLYo#  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [R%Pf/[Fr  
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axis([0 90 -1 1]) ^
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T~G~M/  
grid on /s|4aro  
o"Mhwh  
subplot(1,2,2); Uf`~0=w  
]R%+  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2)
-8pQI  
grbUR)f<?-  
legend('t_p','t_s','|t_p|','|t_s|') p`mNy o'  
tO8<N'TD  
xlabel('\theta_i') fKQq]&~ H  
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ylabel('Amplitude') tv\_& ({  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r{ }&* Y  
|x$2-RUP  
axis([0 90 0 1]) ]zUvs6ksLG  
w^N3Ma  
grid on p)y'a+|7  
Lju)q6  
Rp=abs(rp).^2; p0bMgP  
fXfO9{E  
Rs=abs(rs).^2; {wy#HYhv  
QsC6\Gt#  
Rn=(Rp+Rs)/2; r?:xD(}Q  
Bq*aP*jv  
Tp=1-Rp; p&Ev"xhs  
x!^u$5c  
Ts=1-Rs; n"dYN3dE  
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Tn=(Tp+Ts)/2; r.#"he_6!.  
YfZ96C[a  
figure(2) /M@6r<2`i  
dWDM{t\}\  
subplot(1,2,1); wD|I^y;  
{(j1#9+9  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) HI%#S&d  
^Z`?mNq9  
legend('R_p','R_s','R_n') Kh,zp{  
D5gDVulsh  
xlabel('\theta_i') ,p7W4;?4  
rUOl+p_47  
ylabel('Amplitude') MlmdfO%Y  
| l
|7[  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) }<KQ+  
9?L,DThQ  
axis([0 90 0 1]) hH])0C  
22_%u=p-|  
grid on m\xlSNW'q  
?@LqrKj11  
subplot(1,2,2); zEN3Nn.8  
7v{s?h->$  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) qr|v|Ejd~  
KCc7u8   
legend('T_p','T_s','T_n') !,z==Qp|v  
d@aPhzLu  
xlabel('\theta_i') @?E|]H!S]  
T**v!Ls  
ylabel('Amplitude') K|^'`FpPO  
^p}|""\j  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) N:nhS3N<L  
LzE$z,  
axis([0 90 0 1]) rwh,RI) )g  
2T >K!jS  
grid on 'En|-M5  
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2、光密射向光疏 su\iUi  
RM|2PG1m  
clear R q |,@  
ta+MH
,  
close all !9p;%Ny`  
0s'h2={iI  
n1=1.45,n2=1; z}z 6Vg  
8Z[YcLy"({  
theta=0:0.1:90; o!@}&DE|*L  
{i#z<ttu  
a=theta*pi/180; rZ#ZY  
iKM!>Fi
 
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 0(|Yy/Yq  
BL[N  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 9,c_(%C  
fPBJ%SZ  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); euiP<[|h=  
r?2EJE2{V  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); z)Gd3C  
-\[H>)z]RB  
figure(1) <{P`A
%g@  
YG_|L[/#  
subplot(1,2,1); -qqI@+u+  
sXaudT  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) l9t|@9  
B&L-Lc2  
legend('r_p','r_s','|r_p|','|r_s|') s3sPj2e{  
%EH{p@nM&-  
xlabel('\theta_i') ?Gqq]ozm  
38#Zlcf  
ylabel('Amplitude') \@B'f  
_)kTlX:,  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 10d.&vNw  
z_8lf_N  
axis([0 90 -1.5 1.5]) +3F%soum95  
\2))c@@%  
grid on RJ1@a  
]?%S0DO*  
subplot(1,2,2); ,GF]+nI89  
t>!O
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) i_(6}Y&  
H
tV8=.^  
legend('t_p','t_s','|t_p|','|t_s|') +"1fr  
MfZamu5+F  
xlabel('\theta_i') ^Na3VP  
A<_{7F9  
ylabel('Amplitude') o~7D=d?R  
kvG.?^ v  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @jCMQYR  
3i1TBhs6  
axis([0 90 -0.5 3]) 8]mRX~  
Z!-V&H.
 
grid on y* :C~  
UD=[::##  
Rp=abs(rp).^2; D"gv:RojD  
xXlx}C  
Rs=abs(rs).^2; $zM \Jd  
RN&6z"|jR  
Rn=(Rp+Rs)/2; ,xg-H6Xfa{  
%l?*w~x  
Tp=1-Rp; Id1de>:;  
9k\M<jA  
Ts=1-Rs; M@JW/~p'  
}@"v7X $  
Tn=(Tp+Ts)/2; ep4?;Qmho  
Vqcw2  
figure(2) r KYQ 8T  
O`$\Plt|v  
subplot(1,2,1); Lr9E02  
\x:} |   
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) B2Rpd &[  
p2U6B  
legend('R_p','R_s','R_n') R13V}yL  
J:J/AgJuH  
xlabel('\theta_i') ii&ckg>]z  
[+8*}03  
ylabel('Amplitude') ]TJ258P}  
EI)2c.A  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) nBLb1T  
ej7L-~lxQ  
axis([0 90 0 1]) d,o*{sM5d  
)?I*zc  
grid on .4l cES~  
EG|_YW7  
subplot(1,2,2); o^'QGs"  
pFV~1W:  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) |Qb@.  
\%9QE  
legend('T_p','T_s','T_n') E^A!k=>  
+~*e B  
xlabel('\theta_i') 17`-eDd  
hd,O/-m#  
ylabel('Amplitude') cnRg
zj<ek  
L4ct2|w}ul  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) kem(U{m  
<:&{c-
f/  
axis([0 90 0 1]) R,BINp  
aL&9.L|1g  
grid on xZM4CR9]*C  
CJDNS21m  
GctV  
4@Z!?QzW  

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 L/5th}m  

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