[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 ,`ju(ac!  
[
Ru( H  
1、光疏射向光密 6U%F mE@  
:KBy(}V  
clear Sv[$.^mb  
]TSzT"_r~~  
close all |/~ISB  
xs$.EY:k  
n1=1,n2=1.45; QR h %S{  
YguY5z  
theta=0:0.1:90; `f\+aD'u  
@_Es|(4  
a=theta*pi/180; UiH5iZ<r;  
-E-e!  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); zI.:1(,  
-k,?cEjCs  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); F tay8m@f  
?T_bjALW  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Y>I9o)KR  
Nuc2CB)J  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); l`?4O  
z?.XVk-  
figure(1) -\V;Gw8mD  
p9j2jb,qy  
subplot(1,2,1); $fQ'q3  
M nDaag  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) YL9Tsw  
A4f;ftB  
legend('r_p','r_s','|r_p|','|r_s|') o5<w2(  
*DPKV$  
xlabel('\theta_i') `{'h+v`  
h3z9}'  
ylabel('Amplitude') D<(VP{,G  
Rj~y#m  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) qz.WF8Sy2  
!&5B&w{u~!  
axis([0 90 -1 1]) &ej|DM6  
$QJ,V~  
grid on b0yNc:  
>^Y)@J
 
subplot(1,2,2); s Vg89I&  
9RJFj?^"
 
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;  8u5  
d?>pcT)G_  
legend('t_p','t_s','|t_p|','|t_s|') q.v_?X<_  
o`7B@]  
xlabel('\theta_i') {z7kW@c  
=xRxr@  
ylabel('Amplitude') [OQ+&\  
R1C2d+L  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) -SKcS#IF  
A:,R.P>`C  
axis([0 90 0 1]) 8|-064i>  
Y$N D  
grid on `d!~)D  
k~pbXA*u  
Rp=abs(rp).^2; 4Q^
i"jT  
0j2M< W#  
Rs=abs(rs).^2; :hUt7/3c  
JbW!V
 Y  
Rn=(Rp+Rs)/2; psB9~EU&Q  
b"&1l2\ A  
Tp=1-Rp; u
U#e54^  
~+Ows  
Ts=1-Rs; {iq)[)n  
%y R~dt'  
Tn=(Tp+Ts)/2; @-Ln* 3n  
7A46?kfu  
figure(2) `zMR?F`  
#(d/A<  
subplot(1,2,1); ZIvP?:=!  
1iIag}?p  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) LJmRa  
Ub<^;Du5  
legend('R_p','R_s','R_n') ~
6Df~uN  
I=o/1:[-  
xlabel('\theta_i') Dv-ubki  
b'TkYa^  
ylabel('Amplitude') +u'y!@VV  
~OOD#/  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =Btmi  
6;hZHe'W  
axis([0 90 0 1]) _-bEnF+/0  
9$e6?<`(Y  
grid on J)a^3>  
n%}Vd `c  
subplot(1,2,2); qjVhBu7A  
&Un^ _M  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) qlIbnyP<  
bAm ,gP  
legend('T_p','T_s','T_n') yB,{:kq7D  
IL N0/eH  
xlabel('\theta_i') Ikj_ 0/%F  
y/yg-\/XF  
ylabel('Amplitude') wNhtw'E8  
5sK1rDN  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Y#aHGZ$i  
!:w&eFC6  
axis([0 90 0 1]) 'Z ,T,zW  
&P3ep[]j  
grid on !L\P.FP7b  
sH{4.tw  
6qp' _?  
yZDS>7H  
V( bU=;Qo  

2、光密射向光疏 "
I`g(q#Uo  
zQhc V  
clear _|%l) KO  
N J_#;t#j  
close all (S4[,Sx6E  
C.}Vm};M  
n1=1.45,n2=1; qD/X
%`>Q  
E3<~C(APW  
theta=0:0.1:90; S&`iEwG  
4x%R4tk  
a=theta*pi/180; K{#1O=Gi  
#:6gFfk0<  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); i4 Vv6Sx1  
/WX 0}mWu  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); L-\o zp  
*)4`"D  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); :k*3?*'K  
&XE eJ  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 5EqC.g.  
Q
N$Ac.F  
figure(1) /,cyp.  
Udbz;^(  
subplot(1,2,1); Kgw_c:/'  
%SSBXWP  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) q VcZF7  
~GZpAPg*  
legend('r_p','r_s','|r_p|','|r_s|') loPBHoE3@H  
tQ > IJ  
xlabel('\theta_i') ;YK{[$F  
Zc Y* TGx  
ylabel('Amplitude') |?KdQeL  
ka$oUB)iQ  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) tf+5@Zf]4  
!W ,pjW%Y  
axis([0 90 -1.5 1.5]) iig ({b  
V\(p6:1(6K  
grid on f<T"# G$5  
sF=8E8qa  
subplot(1,2,2); OG&X7>'3I{  
UPI'O %  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) |Q _]+[  
yA#-}Y|]b  
legend('t_p','t_s','|t_p|','|t_s|') l~v BA$,  
RU' WHk  
xlabel('\theta_i') %ut7T!Jp
 
~wdKO7fs  
ylabel('Amplitude') ;:)?@IuSy  
PN&;3z Z  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $_P*Bk)  
j;+!BKWy4  
axis([0 90 -0.5 3]) |{8eoF  
EhBYmc"&  
grid on d^Jf(NE0Yo  
AX= 4{b'  
Rp=abs(rp).^2; `vijd(a?v  
w[
V71Iej  
Rs=abs(rs).^2; TnvX&Y'  
\?X'U:  
Rn=(Rp+Rs)/2; ,Q5Z<\  
%`~?w'  
Tp=1-Rp; HYkZMVH{  
uWSfr(loX  
Ts=1-Rs; =!RlU)w  
=
h{jF7  
Tn=(Tp+Ts)/2; cG`R\$  
FojsI<  
figure(2) v^;%Fz_Dr  
G2{.Ew  
subplot(1,2,1); ?l3PDorR  
@]EJbiGv  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) iB:](Md'r  
3]X~bQAw  
legend('R_p','R_s','R_n') :&/b}b!)AX  
%z_PEqRj  
xlabel('\theta_i') h xCt[G@  
#!WD1a?L  
ylabel('Amplitude') a_pNFe  
!M[a/7x,p  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5V^+;
eO  
PJCRvs|X  
axis([0 90 0 1]) f[bx|6  
.<!Jhf$  
grid on ;DkX"X+  
mR3km1T  
subplot(1,2,2); )$Erfu
  
f~LM-7!zf}  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) XSu9C zx&I  
wd/"! A4(  
legend('T_p','T_s','T_n') +])St3h  
k3/V$*i,1b  
xlabel('\theta_i') "t{|e6   
jNIZ!/K  
ylabel('Amplitude') )i;o\UU  
/kAu&}  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 3+%c*}KC~  
.!\NM&E  
axis([0 90 0 1]) jM E==)Y  
rdFeDZo&Z)  
grid on Qo!/n`19  
~[por  
4;*o}E  

+{$NN  

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 W/U&w.$  

Thanks