[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 p6=L
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1、光疏射向光密 .Pz( 0Y  
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clear 3=r#=u5z  
WO=X*One  
close all GTvp)^h  
$F> #1:=v<  
n1=1,n2=1.45; s{IXth6  
;%u'w;sgq  
theta=0:0.1:90; hEG-,   
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a=theta*pi/180;  U~%V;*|4  
879x(JII  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5v1f?btc  
lHg&|S&J  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); )C \ %R  
cM9z b6m  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); !Db0r/_:G  
J$Huzs#  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); JPeZZ13sS  
)TYrb:M'm  
figure(1) HTfHAc?W  
aD5jy  
subplot(1,2,1); :`FL95  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) RL0#WBR  
m|tE3UBNv  
legend('r_p','r_s','|r_p|','|r_s|') m53XN  
Q@M>DA!d^V  
xlabel('\theta_i') al
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=P* YwLb  
ylabel('Amplitude') \tL9`RKpg  
@y)'h]d  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) #g)$m}tv?  
< 0S+[7S"  
axis([0 90 -1 1]) PQ}q5?N  
K|Q|v39{b  
grid on gY)NPi}!`  
wI\ n%#  
subplot(1,2,2); Z^Y_+)
=s  
XaFu(Xu7  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) QfLDyJv`e  
L;wfTZa  
legend('t_p','t_s','|t_p|','|t_s|') -!X,MDO  
ZS\jbii8  
xlabel('\theta_i')  bnll-G|  
B.zRDB}i=  
ylabel('Amplitude') cmw2EHTT<  
O\=U'6@  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >U.)?>G/dt  
P)h
ZFX  
axis([0 90 0 1]) y.KFz9Qv  
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grid on )v1y P  

7/p&]0w  
Rp=abs(rp).^2; ^|h5*Tb  
}3G`f> s  
Rs=abs(rs).^2; HM'P<<  
y)`f$Hl@1  
Rn=(Rp+Rs)/2; MMyVm"w  
}Mh@%2$  
Tp=1-Rp; u`%Kh_  
(}$pf6s  
Ts=1-Rs; *2K/)(  
7=$@bHEF#*  
Tn=(Tp+Ts)/2; (k{rn3,  
OxGS{zs  
figure(2) iL^bf*  
z_)`='&n  
subplot(1,2,1); XkG:1H;Q%  
O'<5PwhG  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) oCl $ 0x  
3J^"$qfSn  
legend('R_p','R_s','R_n') -k$
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L4fM?{Ic:s  
xlabel('\theta_i') [M:ag_rm+f  
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.:](  
ylabel('Amplitude') S4r-s;U-v/  
\Lp|S:u  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) >8I?YT.  
~EYsUC#B_  
axis([0 90 0 1]) !B&OK&*  
7Wd}H Z  
grid on QD<GXPu?N  
*]L(,_:"  
subplot(1,2,2); ;WF3w  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) j. @CB`  
Ya%-/u  
legend('T_p','T_s','T_n') [Pn(d[$z  
/7s^OkQ  
xlabel('\theta_i') +#|| w9p  
v;S_7#  
ylabel('Amplitude') OGDCC/  
O{4G'CgN(  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /(iq^  
=Nyq1~   
axis([0 90 0 1]) P^wDt14>  
~,*=j~#h  
grid on 'Y6x!i2  
KdBE[A-1^M  
cO&(&*J r  
scXY~l]I*  
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2、光密射向光疏 W7\s=t\  
T5:p^;?g  
clear q6A"+w,N  
C0RnBu  
close all <WWn1k_  
V2v}F=  
n1=1.45,n2=1; \dB)G<_  
li4"|T&  
theta=0:0.1:90; a 8(mU%  
`oPUf!  
a=theta*pi/180; _J N$zZ{  
s<GR ?  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); AW\#)Em  
v`G[6Z  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); i_[nW  
dTATJ)NH  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); y)Y0SY1\j  
A9D vU)1  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); lDK<gd  
9i8 ~  
figure(1) *(w#*,lv  
bvR0?xnq  
subplot(1,2,1); Z(~v{c %<  
[k<w'n*  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) q]^Q?r<g::  
f@)GiLC'"  
legend('r_p','r_s','|r_p|','|r_s|') ]:K[{3iM  
+|iJQF  
xlabel('\theta_i') <$:Hf@tpMo  
-9X#+-  
ylabel('Amplitude') zCuN8  
&_Vd  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Ok*aP+Wq  
u A=x~-I  
axis([0 90 -1.5 1.5]) C7hJE-  
;oT!\$Mu  
grid on 5 `Mos  
)W0zu\fL =  
subplot(1,2,2); ;_TPJy  
kJfMTfl,  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) kX1#+X  
av; ~e<  
legend('t_p','t_s','|t_p|','|t_s|') Y6R+i0guz  
U6sPJc<  
xlabel('\theta_i') 5@3hb]J  
$={^':Uh  
ylabel('Amplitude') =D}]
|ie  
l`V^d  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) eGEeWJ}[$  
BQ /0z^A  
axis([0 90 -0.5 3]) wq6.:8Or-]  
%s(Ri6R&  
grid on %1jlXa  
Q"Ur*/-U  
Rp=abs(rp).^2; exfJm'R?n  
P&2/J%@zG  
Rs=abs(rs).^2; &1(PS)s  
! ,v!7I  
Rn=(Rp+Rs)/2; D(YNa  
!=t.AgmL  
Tp=1-Rp;  0+P[
0  
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Ts=1-Rs; jeLC)lQ*  
Xv2u7T\  
Tn=(Tp+Ts)/2; S(Ej: H  
fcLVE  
figure(2) O.+02C_*  
l^WPv/}?  
subplot(1,2,1); t(sQw '>  
7L"Pe'Hw  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) NMCMY<o  
\'}? j-8  
legend('R_p','R_s','R_n') d7)EzW|I;  
#sg^l>/*  
xlabel('\theta_i') Y7L1`
<SC  
@4ECz>Q  
ylabel('Amplitude') ^|+;~3<J  
)K"7=TvY  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) sfuA {c'v  
gb,X"ODq  
axis([0 90 0 1]) omEnIf
QSO  
F~O}@e{  
grid on ~ v21b?   
^7zXi xp  
subplot(1,2,2); Jd
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*|F ;An.N^  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) {;0+N -U  
]!=,8d
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legend('T_p','T_s','T_n') s<;kTReA  
N*CcJp{Q  
xlabel('\theta_i') #y4+O;{  
/A{/  
ylabel('Amplitude') XFx p^  
'GJ'Vli  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) fZ6"DJZ  

PRyZ; @  
axis([0 90 0 1]) 8F#z)>q~  
P+j5_V{\b  
grid on b+rn:R  
,^#{k!uaC{  
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=SEgv;#KZ~  

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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