[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 TnrMR1Zx  
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1、光疏射向光密 *Bj G3Jc5  

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clear ~kga+H  
_e W*  
close all ? "gy`oCv  
!E8JpE|z#  
n1=1,n2=1.45; +y2*[  
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theta=0:0.1:90; _<8y^y
mo  
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a=theta*pi/180; aNz%vbh\  
YZ}gZQ.A0  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5y)kQ
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Us<lWEX;k  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); uE2Yn`Ha  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); {XAKf_Cg  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); hH\(>4l  
A,osrv  
figure(1) N=
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subplot(1,2,1); mMR[(  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) W$&Q.Z  
Oj2[(7mO/  
legend('r_p','r_s','|r_p|','|r_s|') Mo/
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xlabel('\theta_i') OCd[P1Y]  
9/{g%40B^  
ylabel('Amplitude') <:p&P  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) tf,_4_7#$  
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axis([0 90 -1 1]) HZm44y$/  
X!@Gv:TD  
grid on }K/[3X=B  
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subplot(1,2,2); ?E`J-ncP  
,W#y7t  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Djzb#M'm  
w-KtxG(  
legend('t_p','t_s','|t_p|','|t_s|') 6l=n&YO  
R'{V&H^Z  
xlabel('\theta_i') pD]Ry" ZG  
T]:5y_4?[  
ylabel('Amplitude') ?vhW`LXNB  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) E?;W@MJi  
6};Sn/8  
axis([0 90 0 1]) h'bxgIl'`  
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grid on T57S!CJ^$5  
W&"FejD  
Rp=abs(rp).^2; rnW i<Se  
d&fENnt?h  
Rs=abs(rs).^2; Pvtf_Qo^  
fhC=MJ @  
Rn=(Rp+Rs)/2; f_ ::?  
FnCHbPlb  
Tp=1-Rp; *33Zt+  
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Ts=1-Rs; CV`  I.  
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Tn=(Tp+Ts)/2; q3;HfZ  
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figure(2) ie_wJ=s  
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subplot(1,2,1); ''V:+@Toh  
9;@6iv  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Fv3fad@x  
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legend('R_p','R_s','R_n') ;xb:{?  
Q=+KnE=h  
xlabel('\theta_i') Tx!mW-Lt  
AttDD{Ta  
ylabel('Amplitude') ?(mlt"tPk  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <5nz:B
/  
ub-ZrC'  
axis([0 90 0 1]) KQEnC`Nz  
<)rol  
grid on $Q?<']|A  
P'g$F<~V  
subplot(1,2,2); ,fL*yn  
1X=}  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 1(m89C[  
?gTY!;$P  
legend('T_p','T_s','T_n') -qs9a}iL  
c(@)V.o2  
xlabel('\theta_i') GU_R6Wt+  
N5g!,
3  
ylabel('Amplitude') Q|;8\5  
t,&1~_9  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) IAg#YFI  
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axis([0 90 0 1]) ab6KK$s  
32dR`qb  
grid on G6L'RP  
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2、光密射向光疏 8eQ 4[wJY  
%i$]S`A}  
clear e0qU2  
66!cfpM  
close all n-0RA~5z  
]|'Mf;  
n1=1.45,n2=1; ?X~Keb  
^GHA,cSf  
theta=0:0.1:90; |cUTP!iy  
+O2T%  
a=theta*pi/180; J1KV?aR  
7:<co  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 9+_SG/@  
zq _*)V  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); E:!?A@Fy  
{ LZ` _1D  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); wgp{P>oBX  
^1nQDd*  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); [AA'Ko  
:*k  
figure(1) aOIE9wO  
$GB/}$fd&  
subplot(1,2,1); ~QQi{92  
\c(R#*0,  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) +O8rjVg)  
2= S;<J
 
legend('r_p','r_s','|r_p|','|r_s|') Y`.FSs  
"Y-_83  
xlabel('\theta_i') Y|stxeOC  
#0GvL=}k  
ylabel('Amplitude') w7+3?'L  
[Wf%iwB  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ER-X1fD  
+`'=K ;{U  
axis([0 90 -1.5 1.5]) {$5?[KD  
OTwIR<_B+  
grid on ^}8qPBz  
#6* j+SX^  
subplot(1,2,2); MROe"Xj  
XA PqRJ*Z  
plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 3g ep_aC  
wA$ JDf)Vg  
legend('t_p','t_s','|t_p|','|t_s|') G6@XRib3  
%s&l^&
ux  
xlabel('\theta_i') :rR)rj'  
6
N+]g/_a  
ylabel('Amplitude') F8Y_L\q  
Pr|BhX  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ^V,?n@c!  
 'ONCz  
axis([0 90 -0.5 3]) g4z*6L,u  
7\.{O$Q  
grid on ^6g^ Q*"  
J;8M._  
Rp=abs(rp).^2; :Q]P=-Y8  
pg0Sq9qCN  
Rs=abs(rs).^2; dA03,s  
IPHZ~'M  
Rn=(Rp+Rs)/2; xNAX)v3Z  
Q^trKw~XNy  
Tp=1-Rp;
'/O >#1  
L/*D5k%J  
Ts=1-Rs; /hF@Xh%hY  
w&F.LiX^  
Tn=(Tp+Ts)/2; ;8Qx~:c  

}%)]b*3  
figure(2) [8%R*}  
:LrB9Cf$n  
subplot(1,2,1); r{g8CIwGQ  
+PAb+E|,  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) "@ 1+l&  
sx1w5rj.Y0  
legend('R_p','R_s','R_n') @{V bu  
}+] l_!v*  
xlabel('\theta_i') FHOF6}if  
 4>R)2g  
ylabel('Amplitude')  2-$O$&s.  
*TyLB&<t  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) H6/n  
%r =9,IJ  
axis([0 90 0 1]) O n/q&h5  
'Bx"i  
grid on ^7l+ Ofb3  
~CX1WPMI:  
subplot(1,2,2); ?Z(xu~^/  
0+
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) }j`#s  
P!xN]or]u  
legend('T_p','T_s','T_n') $Cnv]1%  
y?P4EVknM3  
xlabel('\theta_i') 8{4SaT.-Rm  
)`5=6i  
ylabel('Amplitude') I
eN~E'~  
]iezwz`'  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) WJU[+|J  
328gTP1  
axis([0 90 0 1]) _=YHO.  
O&g$dK!Rad  
grid on T/$hN hQK  
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JRr'81\  
8[rZRc  

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 _NkbB"+L  

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