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200833 2017-11-26 22:33

利用MATLAB光学仿真（1）

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 A1T;9`E  
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1、光疏射向光密 B%;+8]  
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clear |<icx8hbr  
-bQvJ`iF  
close all $R36`wk  
c3-bn #  
n1=1,n2=1.45; m':m`,c!  
sM[c\Z]  
theta=0:0.1:90; ^@eCT}p{  
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a=theta*pi/180; +Q&@2 oY"  
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rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); U?yXTMD  
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rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); P~>nlm82]  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); k Er7,c  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); !OemS 7{  
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figure(1) UQr+\ u  
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subplot(1,2,1); Rv o<ISp  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) oaE3Aa  
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legend('r_p','r_s','|r_p|','|r_s|') "5bk82."  
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xlabel('\theta_i') ,pepr9Yd  
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ylabel('Amplitude') RzRLrfV  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) d~%Rnic6*  
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axis([0 90 -1 1]) -`o:W?V$u  
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grid on ) 'KHUa9  
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subplot(1,2,2); G<DUy^$i  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) 4mg&H0 !  
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legend('t_p','t_s','|t_p|','|t_s|') LA5rr}<K  
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xlabel('\theta_i') hBw~l?G  
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ylabel('Amplitude') @hv] [(<  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) x&wUPo{  
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axis([0 90 0 1]) 3 -FNd~%  
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grid on +Oa1FvoEA  
R_ }(p2  
Rp=abs(rp).^2; W` V  
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Rs=abs(rs).^2; &0`L;1R  
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Rn=(Rp+Rs)/2; %/y/,yd  
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Tp=1-Rp; t30V_`eQ  
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Ts=1-Rs; )_ uK(UNZ5  
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Tn=(Tp+Ts)/2; qeYr=%)c  
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figure(2) KqQrxi?f-  
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subplot(1,2,1); )m U)7@!  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) %lxo?s@GE  
$H}Q"^rs  
legend('R_p','R_s','R_n') li[g =A,  
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xlabel('\theta_i') ]iPdAwc.1  
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ylabel('Amplitude') 11u qs S2  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) sf LBi~*j  
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axis([0 90 0 1]) O_033&  
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grid on R[z6 c )  
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subplot(1,2,2); 0Z\fK>yw  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) 3yQ(,k#  
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legend('T_p','T_s','T_n') 0y(d|;':  
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xlabel('\theta_i') k$zDofdfp  
Uhf -}Jdw  
ylabel('Amplitude') 3,GSBiK3}  
iL(E`_I<  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) +VJl#sc/;  
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axis([0 90 0 1])  QS!b]a3  
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grid on C][`Dk\D{  
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200833 2017-11-26 22:36
2、光密射向光疏 ZnQnv@{8 l  
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clear 6ik6JL$AI  
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close all 8!1o,=I$  
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n1=1.45,n2=1; a+Q)~13  
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theta=0:0.1:90; v^e[`]u(  
c;j]/R$i  
a=theta*pi/180; fUa`Y ryQ  
(bXCc  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 5ewQjwW0  
?&?y-&.5-  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 2WKA] l;  
,7eN m>$  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); >~6 ;9{@  
1[!Idl?m  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); LG;xZQx'  
BKN]DxJ6  
figure(1) 2-8<uUy  
rt"\\sOlMB  
subplot(1,2,1); ,Qp58u2V  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ^b&aDm~(7  
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legend('r_p','r_s','|r_p|','|r_s|') 7bTs+C_;7  
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xlabel('\theta_i') 8,%y`tUn>u  
q+SDJ?v  
ylabel('Amplitude') %e3lb<sv6  
 Wkf)4!  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) y1P?A]v  
J)*y1   
axis([0 90 -1.5 1.5]) w^dB1Y7c(W  
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grid on MYLq2g\  
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subplot(1,2,2); rGx1>xd(k  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) $.v5G>- )3  
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legend('t_p','t_s','|t_p|','|t_s|') ~bg FU  
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xlabel('\theta_i') Dj?9 5Z,r  
,VbP$1t  
ylabel('Amplitude') Pf]L`haGN  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) @aI`ru+a  
he 9qWL&^G  
axis([0 90 -0.5 3]) I/fERnHM/+  
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grid on GQT|T0>Ro  
_bFX(~37z?  
Rp=abs(rp).^2; AuSL?kZ4|Y  
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Rs=abs(rs).^2; _^Rf*G!  
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Rn=(Rp+Rs)/2; u6|P)8?`  
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Tp=1-Rp; !i0:1{.  
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Ts=1-Rs; e>X&[\T  
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Tn=(Tp+Ts)/2; Zn&X Uvdl  
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figure(2) J$@3,=L6V  
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subplot(1,2,1); XP~4jOL]  
n`;=^^B  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) |G!-FmIK  
mam|aRzd  
legend('R_p','R_s','R_n') 3/P2&m  
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xlabel('\theta_i') t d-EB&i\  
k oZqoP  
ylabel('Amplitude') 8.F]&D0p8  
m'@NF--#Oq  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) u0Irf"Ab  
S"V|BU  
axis([0 90 0 1]) %Gh!h4Pv  
(khjP ,  
grid on c2-NXSjsW  
Sycs u_je  
subplot(1,2,2); Z[[ @O  
>Y!5c 2~`;  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) [C.Pzo  
>a5CW~Z]  
legend('T_p','T_s','T_n') +)dQd T0Fq  
s^)wh v`C  
xlabel('\theta_i') ZQZ>{K  
]|@RWzA  
ylabel('Amplitude') {?$-p%CF`8  
XSkx<"U*  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) UW8 8JA0  
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axis([0 90 0 1]) c>,|[zP{  
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grid on \J.PrE'(}  
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大博归来 2017-11-27 08:03
感谢楼主分享
hit2011 2017-12-02 14:58
这个在《MATLAB在光学中的应用》这本书里都有
direwolf100 2017-12-05 22:34
谢谢了楼主分享
jabil 2022-03-07 13:54
thanks
cici2015 2022-08-03 07:32
谢谢了楼主分享
13428299720 2023-07-21 20:02
学习学习
lalallaal 2025-02-28 10:13
学习学习 n#8N{ya5x1  
jabil 2025-03-07 09:40
Thanks
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