[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 sBNqg~HwB?  
ZR8y9mx2"  
1、光疏射向光密 t{Ks}9
B  
SXV2Y-  
clear C\ 34R  
e|^.N[W  
close all oMNBK/X_  
cq/@ng*o  
n1=1,n2=1.45; A>*#Nw5L  
<W*6=HZ'  
theta=0:0.1:90; eGWwPSIp  
iZ(JwY  
a=theta*pi/180; \8k4v#wH  
NYR:dH]N~d  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); "DRiJ.|APs  
Bo0T}P~  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); }x_:v!G  
w~n+hhMF  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); %xC}#RDf  
%V(U]sbV  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); G420o}q  
HLqDI
lL  
figure(1) <co:z<^lqu  
|WgFLF~k  
subplot(1,2,1); yEVnG` 1  
GMpg+rK  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) s|R`$+'{  
k7 Ne(4P  
legend('r_p','r_s','|r_p|','|r_s|') U:|:Y=O?Q  
ayN[y  
xlabel('\theta_i') t*-_MG  
04a@  
ylabel('Amplitude') Z[kVVE9b?  
i1Y<[s  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) O44Fj)  
|"}rC >+  
axis([0 90 -1 1]) 
r4]hcoU  
k?Njge6@  
grid on |#B)`r8  
V7k!;0u v  
subplot(1,2,2); (7X^z&2  
P R_| 8H|  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ;Ji3|=4u  
$-39O3  
legend('t_p','t_s','|t_p|','|t_s|') :6Gf@Z&+  
z%$
M IC  
xlabel('\theta_i') $Ut1vp1$  
Gw
mYhG<{  
ylabel('Amplitude') %KR2Vlh0  
Bey9P)_Of  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [MeFj!(  
~Vc`AcWP  
axis([0 90 0 1]) =ibKdPtTh^  
d;).| .}P  
grid on Yb'%
J@T}  
'Ojxzz*tT  
Rp=abs(rp).^2; -hGLGF??  
fD2 N}  
Rs=abs(rs).^2; Qgq VbJP"  
+y 48.5  
Rn=(Rp+Rs)/2; 9o
l&p>  
1\/^X>@W{  
Tp=1-Rp; y`pgJO  
N\fj[?f[  
Ts=1-Rs; 5W09>C>OC  
es\Fn#?O  
Tn=(Tp+Ts)/2; zTw<9Nf  
2 yRUw  
figure(2) VD+v\X_  
p }3$7CR/  
subplot(1,2,1); )1!0'j99.  
+rka5ts  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) BfDC[(n`  

<4-g2.\  
legend('R_p','R_s','R_n') )vGxF}I3  
lXutZ<S[  
xlabel('\theta_i') h~ehZJys  
eo&G@zwN  
ylabel('Amplitude') +*wo iSD  
q( %)^C  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4UMOC_  
$Q=S`z=  
axis([0 90 0 1]) Y,-!QFS#  
Xj<xen(  
grid on <ti,Wn.  
 4Gj  
subplot(1,2,2); :,.HJ[Vg&  
FMT_X  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) yL23Nqe  
EU'P U  
legend('T_p','T_s','T_n') =Nr?
F'<  
oW6b3Q/B  
xlabel('\theta_i') B_"PFWwg  
hwSxdT6  
ylabel('Amplitude') 43*;"w=  
b.cBg.a  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4 i`FSO  
k8,s<m  
axis([0 90 0 1]) 9T<k|b[6  
pV$A?b"?*  
grid on RG_
6& A  
LKg9{0Y:  
Z OqD.=O(  
!j9(%,PR  
N({-&A.N  

Thanks

学习学习 DN;$->>  

学习学习

谢谢了楼主分享

thanks

谢谢了楼主分享

这个在《MATLAB在光学中的应用》这本书里都有

感谢楼主分享

2、光密射向光疏 kH4m6p  
;

Pvnhy  
clear LdnTdh?  
W3n[qVZIC  
close all ..=lM:13|  
_WI~b  
n1=1.45,n2=1; Y\F4  
n2Q?sV;m  
theta=0:0.1:90; Bk5ft4v-  
F1p|^hYDW  
a=theta*pi/180; y(=0  
,_K:DSiB  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); zbfe=J4c  
\\35} 9  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); /bmkt@$-0  
S(0JBGC  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ^}lL@Bd|  
u\km_e
  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); rw?wlBEG%  
.ZM0cwF  
figure(1) ?"@SxM~\  
845\u&  
subplot(1,2,1); LN9.Q'@r?  
Pd~z%VoO  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) !. :b}t  
Bo ??1y  
legend('r_p','r_s','|r_p|','|r_s|') C}\kp0mz  
JC}T*h>Ee  
xlabel('\theta_i') %h v-3L#V  
[5Zi\'~UH)  
ylabel('Amplitude') kqGydGh*"  
0\+$j5;  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^tVIPH.R  
l>)+HoD  
axis([0 90 -1.5 1.5]) 7r pTk&`  
=.,XJIw&  
grid on }{v0}-~@  
6L2Wv5C  
subplot(1,2,2); A[f`xE  
w<I
q:3  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) r$%,k*X^ k  
5"D\n B%  
legend('t_p','t_s','|t_p|','|t_s|') <<H'Z  
iu{QHjZK(  
xlabel('\theta_i') <XzRRCYQ  
.L^F4  
ylabel('Amplitude') " pL5j  
/}s#   
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5'EoB^`8N~  
pWKI^S  
axis([0 90 -0.5 3]) zF&_9VNk=c  
T? ,Q=.  
grid on zhU^~4F  
ppO!v?  
Rp=abs(rp).^2; Ex{;&UWm  
U)1hC^[!   
Rs=abs(rs).^2; )XYCr<s2"  
ZV[-$  
Rn=(Rp+Rs)/2; axv-UdE;  
H)K.2Q  
Tp=1-Rp; /q^_ 'Lp  
Ua+Us"M3}  
Ts=1-Rs; TaZlfe5z  
I2?
g'tz  
Tn=(Tp+Ts)/2; Dj w#{WR  
DMT2~mh  
figure(2) RI]x=  
Hlj3z3  
subplot(1,2,1); P}-S[[b73s  
'@#l/9
 
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) M\kct7Y  
PH!rWR  
legend('R_p','R_s','R_n') x8&~  
W}
k)5<C4v  
xlabel('\theta_i') 6Q`7>l.|?  
g]._J  
ylabel('Amplitude') &tw{d DD6  
;5}"2hU>  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ak(P<OC-  
ts=+k/Z  
axis([0 90 0 1]) NaeG)u#+  
>n>gX/S<C  
grid on )lVplAhZD  
$"Nqto~  
subplot(1,2,2); q?#w%0}  
-J++b2R\%  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) U?ZxQj66}  
kk aS&r>  
legend('T_p','T_s','T_n') I0sw/,J/Z  
gR k+KGKn<  
xlabel('\theta_i') 1VG7[#Zy  
o[nr)  
ylabel('Amplitude') *)i+c{~  
C6:; T%  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) "R-Pe\W  
TzsNhrU{  
axis([0 90 0 1]) xQ8?"K;iX  
M\=/i\-  
grid on xx,|n  
1$uO%  
PL*kjrLu7  
1Gk'f?dw