[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  :7]Sa`  
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1、光疏射向光密 kr9*,E9cv  
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clear r\-uJ~8N  
:fZ}o|t7  
close all 8h*Icf  
tnN.:%mZ  
n1=1,n2=1.45; O @j} K4  
"AsKlKz{B  
theta=0:0.1:90; SBfT20z[  
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sPi  
a=theta*pi/180; ?IqQ-C)6D  
R\G0'?h >  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 1Vrh4g.l  
v50bdj9}k  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 26I_YL,S  
2db3I:;E  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); *U,@q4  
xy/`ZS2WPq  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); V)~.~2$  
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figure(1)
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subplot(1,2,1);  #~2%)  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) NV72  
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legend('r_p','r_s','|r_p|','|r_s|') ~=6xyc/c  
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xlabel('\theta_i') Q  Nh|Wz  
t^R][Ay&  
ylabel('Amplitude') 8*#R]9  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Zw5Ni Xj  
:8=ikwQ  
axis([0 90 -1 1]) VM GS[qrG  
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grid on 6}[I2F_^  
cl[BF'.H  
subplot(1,2,2); hV8[@&Sx3  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) AS'R?aX|C  
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legend('t_p','t_s','|t_p|','|t_s|') 7~^GA.92  
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xlabel('\theta_i') 9ifDcYl  
vj'wm}/  
ylabel('Amplitude') ]'!f28Ng-  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) [R(`W#W  
y~AVei&  
axis([0 90 0 1]) fi-WZ  
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grid on Q('r<v96  
m[?E  
Rp=abs(rp).^2; $2oTkOA   
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Rs=abs(rs).^2; &zl|87M  
twL3\ }N/B  
Rn=(Rp+Rs)/2; AK,J7
 
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Tp=1-Rp; 8;b(0^  
gn8R[5:!V  
Ts=1-Rs; aktU$Wbwl  
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Tn=(Tp+Ts)/2; B8.P
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figure(2) l4D+Y  
ocqU=^ta  
subplot(1,2,1); \f]k 
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) _X^1IaL  
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legend('R_p','R_s','R_n') @K\~O__  
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xlabel('\theta_i') O,+1<.;+  
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ylabel('Amplitude') ^1S!F-H4\  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) s1MErd  
yCd-9zb=  
axis([0 90 0 1]) _(_a*ml  
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grid on :#LLo}LKp  
!POl;%\  
subplot(1,2,2); u!!Y=!y*<  
hEA<o67  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) JmF l|n/H  
s[M
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legend('T_p','T_s','T_n') eV2W{vuI  
|jQ:~2U|  
xlabel('\theta_i') v6=RY<l"m  
8qk?E6  
ylabel('Amplitude') WQ~;;.v#  
:=}US}H$  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) eK6hS_E  
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axis([0 90 0 1]) )bS~1n_0  
V@B__`y7  
grid on  |XT)QK1  
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RTvqCp  

Thanks

学习学习 z8jk[5z  

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 p[<Dk$7K  
f@8>HCI  
clear |AcRIq  
vJ\pR~?  
close all /rq VB|M  
ox:[f9.5  
n1=1.45,n2=1; Y|8:
;u'  
j'%$XvI  
theta=0:0.1:90; g)s{IAVx  
PH?#)lD  
a=theta*pi/180; ?sh
Ij;c[  
`!Ds6  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); LEW'G"+  
}e2(T  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 2WtRJi?b|  
uHAT#\m:  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); ?*?RP)V  
A,\6nO67  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); dDm):Z*`b  
][W_[0v  
figure(1) OH5>vV'i  
h3*Zfl<]  
subplot(1,2,1); UNPezHaz  
w"SoeU  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Z9575CI<  
X@k`3X  
legend('r_p','r_s','|r_p|','|r_s|') DA2}{  
.C2TQ:B,.  
xlabel('\theta_i') =+-Yxh|*  
3 n'V\Hvz  
ylabel('Amplitude') EI
_  
UJfEC0  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Mk=mT3=#  
io#&o;M<  
axis([0 90 -1.5 1.5]) -RS7h  
n|b5? 3  
grid on z)z{3rR|PW  
5B&;uY   
subplot(1,2,2); F)
+{AQL  
Pu"R,a  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) &^}6 9  
vG;zJ#c  
legend('t_p','t_s','|t_p|','|t_s|') &Y 4F!Rb  
_)]+hUwY  
xlabel('\theta_i') \MjJ9u `8  
1Wm)rXW[x  
ylabel('Amplitude') AJSx%?h:6  
cs1l~bl  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +T=(6dr  
~=KJzOS,S  
axis([0 90 -0.5 3]) *^RmjW1I  
n>A98NQ  
grid on [5uRS}!  
Q%wY  
Rp=abs(rp).^2; vfl5Mx4  
m;D- u>o  
Rs=abs(rs).^2; {}QB|IH`  
:=8t"rO=W  
Rn=(Rp+Rs)/2; J?Dq>%+^  
m=:4`_0Q  
Tp=1-Rp; a)S+8uU  
oyNSh8c7c  
Ts=1-Rs; nK$X[KrV'  
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tjM|  
Tn=(Tp+Ts)/2; FL8g5I  
!2z?YZhu  
figure(2) 0TmR/uUT  
-0_d/'d  
subplot(1,2,1); >[Ye  
63.wL0~  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) F:D orE  
{5d9$v7k4  
legend('R_p','R_s','R_n') cuK,X!O  
m!W3Cwz\&  
xlabel('\theta_i') NTS#sgP  
cwm_nQKk  
ylabel('Amplitude') !^v5-xO?rP  
~}!3G  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +8v9flh  
2MATpV#BT  
axis([0 90 0 1]) 8ZCoc5  
$8p7D?Y  
grid on m$9w"8R  
v3GwD00  
subplot(1,2,2); Qb!PRCHQ  
!q-f9E4`  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) HLBkR>e  
01T`Flz  
legend('T_p','T_s','T_n') t=*@yQ nB  
/s-A?lw^2  
xlabel('\theta_i') ,^gyH \  
<H
0R&l\  
ylabel('Amplitude') 3SSm5{197  
rU;RGz6}  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Qfky_5R\  
<,AS8^$X[  
axis([0 90 0 1]) }hYZ" A~  
ATy*^sc&"  
grid on /'Pd`Nxl.  
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