[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 ,*
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1、光疏射向光密 fj"S|]e  
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clear t qER;L  
*/qv}  
close all zU}0AVlIL:  
CBF>157B  
n1=1,n2=1.45; 3Zbvf^  
$B(B  
theta=0:0.1:90; >M +!i+  
Fs=nAn#  
a=theta*pi/180; JY_' d,O  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 00$W>G
r  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); \@80Z5?n  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); !G8SEWP  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); =6%0pu]0  
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figure(1) LOOv8'%O8  
@ 8SYV}0H  
subplot(1,2,1); Karyipn}  
IYrO;GQ  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) O!|:
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legend('r_p','r_s','|r_p|','|r_s|') "%sW/ph  
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xlabel('\theta_i') x JepDCUJ>  
/]vg_&)=  
ylabel('Amplitude') mH8"k+k  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) uL1-@D,  
xo]|m\#k5E  
axis([0 90 -1 1]) W"~G]a+  
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grid on YoahqXR`  
gsZCWT
 
subplot(1,2,2); 'g$|:bw/  
KBOxr5w  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ")8wu1V-  
x0 j$]$  
legend('t_p','t_s','|t_p|','|t_s|') V%3K")  
K.1#cf ^'  
xlabel('\theta_i') bhFzu[B  
-\r*D#aHBN  
ylabel('Amplitude') Dzp9BRS 2f  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 44cyD _(  
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axis([0 90 0 1]) xKIm2% U9  
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grid on 7$/ O{GBJ  
[P"#?7 N  
Rp=abs(rp).^2; }7UE  
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Rs=abs(rs).^2; *)"`v]  
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Rn=(Rp+Rs)/2; |>d56  
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Tp=1-Rp; l0]zZcpt  
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Ts=1-Rs; rrmr#a  
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Tn=(Tp+Ts)/2; RW%e%  
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figure(2) F2lTDuk>C  
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subplot(1,2,1); A L

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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) F~&bg
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legend('R_p','R_s','R_n') ;}1*M !  
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xlabel('\theta_i') h_fA  
#M%-q8  
ylabel('Amplitude') : 3*(kb1)&  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ~ /]u72?rP  
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axis([0 90 0 1]) = gOq >`  
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grid on x2(
hp  
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subplot(1,2,2); #r>  
r+d%*Dx  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) <4D.P2ct  
c?>@P  
legend('T_p','T_s','T_n') 6|~N5E~SX  
l/#;GYB]  
xlabel('\theta_i') gT?
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L>Y%$|4  
ylabel('Amplitude') !S$LRm\'  
Jvgx+{Xu  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) DTH;d-Z  
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axis([0 90 0 1]) *FmY4w  
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grid on -Uh3A\#(  
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2、光密射向光疏 # 3UrGom  
d< j+a1&  
clear "MM)AY*b  
g3B%}!|  
close all RrA9@95+  
w#0/&\b=  
n1=1.45,n2=1; |Y"nZK,  
5 6w6=Is  
theta=0:0.1:90; $`;1][OD  
(qo ?e2K  
a=theta*pi/180; %dn!$[D@  
r9sq3z|%  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); wo>7^ZA  
f"9aL= 3  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); /;E{(%U)t  
-j& A;G  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5NGQWg  
6,Z.RT{5  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); ,! b9  
V?t56n Y}  
figure(1) )IBvm1  
<<WqL?8W  
subplot(1,2,1); ?$$Xg3w_#  
)@(IhU)
  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) W=G8l%  
}jdMo83  
legend('r_p','r_s','|r_p|','|r_s|') W?TvdeBx  
1#tFO  
xlabel('\theta_i') 88uoA6Y8h  
fbg:rH\_  
ylabel('Amplitude') kLE("I:7  
"~2SHM@q  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |-l9Z  
e92,@  
axis([0 90 -1.5 1.5]) &s^t~>Gpr  
MZd
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grid on aoUz_7  
+,xluwv$9  
subplot(1,2,2); .D3k(zZ  
[b:0j-  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2)
)gVz?-u+D  
p!/!
ZIo  
legend('t_p','t_s','|t_p|','|t_s|') >Py:9~g,  
0?,<7}"<X  
xlabel('\theta_i') 9ERyr1-u v  
Se}&2 R  
ylabel('Amplitude') %p;;aZG  
MX7Y1  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) l6T^e@*  
J.(mg D  
axis([0 90 -0.5 3]) LK|1[y^h  
)k[{re  
grid on Suo%uD  
7u`:e,'  
Rp=abs(rp).^2; H
#H[8#  
VX:Kq<XwQ  
Rs=abs(rs).^2; sa?s[  
@rP#ktz]  
Rn=(Rp+Rs)/2; ,K15KN.'  
@6kkt~>:  
Tp=1-Rp; J?Bj=b  
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Ts=1-Rs; IOd
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K%.t%)A_3  
Tn=(Tp+Ts)/2; gq~K(Q<O<  
qTz5P  
figure(2) yZ-Ql11
 
%RX!Pi}5+g  
subplot(1,2,1);
z2iWr  
T@xaa\bzg  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) eRm*+l|?  
=F% <W7  
legend('R_p','R_s','R_n') OIs!,G|  
r ?<?0j  
xlabel('\theta_i') R8>17w.  
l0PXU)>C  
ylabel('Amplitude') *|OUd7P:hU  
]E|E4K6g  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) $\#wsI(  
,f~)CXNT?  
axis([0 90 0 1]) hAJ^(|  
A;TNR  
grid on ]u.)
6{  
5Mp$u756  
subplot(1,2,2); TB_OFbI2  
)TcD-Jr  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) [dy0aR$>d  
~zoZ{YqP  
legend('T_p','T_s','T_n') &8dj*!4H  
qFp]jbU  
xlabel('\theta_i') 734H{,~  
)`#SMLMy~  
ylabel('Amplitude') mUfANlQ:  
IN@ =UAc&  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) XzW\p8D^u  
%<>|cO  
axis([0 90 0 1]) &x3R+(H {  
"`V:4uz  
grid on ~X-v@a  
3 jghV?I{T  
LYuMR,7E  
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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

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学习学习 6dq*ncNin  

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