[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 5O"wPsl  
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1、光疏射向光密 !B&1{  
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clear [oS.B\Vc  
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close all Jm}zit:o  
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n1=1,n2=1.45; Gp))1
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theta=0:0.1:90; mQt?d?6  
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a=theta*pi/180; ,6a }l;lv  
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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)); "O{:jfq  
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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)); Hy
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); 6b#J!:?  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); zXg/.
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figure(1) Gnmxp%&}P|  
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subplot(1,2,1);
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lr@H4EJ{  
plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) y-CVyl  
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legend('r_p','r_s','|r_p|','|r_s|') s&*s9F  
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xlabel('\theta_i') %O3 r>o=  
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ylabel('Amplitude') qbe9 CF'@_  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) TJp0^&Q  
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axis([0 90 -1 1]) kzLtI w&.  
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grid on Y+I`XeY  
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subplot(1,2,2); Sud5F4S  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) U0W- X9>y  
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legend('t_p','t_s','|t_p|','|t_s|') {CR'Z0  
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xlabel('\theta_i') Ju7nvxC  
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ylabel('Amplitude') D;al(q  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)])  !(<Yc5  
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axis([0 90 0 1]) i;$'haK<  
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grid on *xOrt)D=  
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Rp=abs(rp).^2;
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Rs=abs(rs).^2; =NzA2td  
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Rn=(Rp+Rs)/2; O5Xu(q5+  
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Tp=1-Rp; \ oIVE+L/P  
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Ts=1-Rs; qe:,%a-9  
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Tn=(Tp+Ts)/2; rE bC_<  
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figure(2) pU*dE   
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subplot(1,2,1); j[h4F"`-  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) [a*m9F\ ,  
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legend('R_p','R_s','R_n') \S@;>A<J  
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xlabel('\theta_i') \gL H_$}  
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ylabel('Amplitude') u9FXZK7  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |Y!#`  
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axis([0 90 0 1]) XX,iT~+-  
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grid on z1ltc{~Z  
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subplot(1,2,2); )dJaF#6j  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) ++
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legend('T_p','T_s','T_n') yk9|H)-z  
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xlabel('\theta_i') dm&F1NkT  
qDO4&NO  
ylabel('Amplitude') A:EF#2)g  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 0sRby!  
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axis([0 90 0 1]) J56+eC(  
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grid on !=#E/il,  
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2、光密射向光疏 r^&{0c&o  
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clear Lm9y!>1"O  
*~M=2Fj;i  
close all ` &|
Rs  
yyrCO"eh  
n1=1.45,n2=1; +M (\R?@gr  
Nc[>CgX"@  
theta=0:0.1:90; &Hc8u,|  
5SK{^hw  
a=theta*pi/180; ,Z#t-?  
Vy{=Y(cpF2  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); U n2xZ[4  
}.4`zK&SB  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); |v}"UW(y  
0[xum  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); xzy7I6X  
];^A8?  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 0kpRvdEr-  
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figure(1) abW
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on(F8%]zE  
subplot(1,2,1); 9C$b^wHd  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) WO)rJr!C  
r`i<XGPJ%  
legend('r_p','r_s','|r_p|','|r_s|') ss%ahs  
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xlabel('\theta_i') J+[&:]=P  
vd SV6p.d  
ylabel('Amplitude') A(W%G|+  
sZPPS&KoP3  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) A"\kdxC  
3otia;&B  
axis([0 90 -1.5 1.5]) #wNksh/J^  
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grid on `z-4OJ8~  
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subplot(1,2,2); y^pk)`y8  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) @ ILG3"  
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legend('t_p','t_s','|t_p|','|t_s|') nu}$wLM  
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xlabel('\theta_i') ['sj'3cW-  
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ylabel('Amplitude') _$NFeqLww  

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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) .rD@Q{e50  
x<"1T w5e  
axis([0 90 -0.5 3]) 05LVfgJ'q  
9loWh5_1Z  
grid on d47b&.v8e  
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Rp=abs(rp).^2; m7zen530  
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Rs=abs(rs).^2; @T._   
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Rn=(Rp+Rs)/2; ANc)igo  
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Tp=1-Rp; 0_}OKn)J  
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Ts=1-Rs; 2#kR1rJP  
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Tn=(Tp+Ts)/2; Ha1E /b]K  
A9Q!V01_  
figure(2) '+?AaR&p?  
v98=#k!F  
subplot(1,2,1); U,LW(wueT  
<h4"^9hL  
plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) f'0n^mSP  
sHyhR:  
legend('R_p','R_s','R_n') Ah;2\0|t  
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xlabel('\theta_i') )y\^5>p[  
gYA|JFi  
ylabel('Amplitude') +J} wYind  
n`2d  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) d=o|)kV  
jA$g0>  
axis([0 90 0 1]) 9JBPE  
;o8C(5xE|  
grid on 2qo=ud  
K}tl,MMU  
subplot(1,2,2); &M,a+|yuY  
G+stt(k:  
plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) l_hM,]T0  
T1m"1Q  
legend('T_p','T_s','T_n') K]Q#B|_T  
"XT7;!  
xlabel('\theta_i')
L{jJDd  
;&q}G1  
ylabel('Amplitude') SUINV_>7  
S_/9eI~X  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) KtchKpv  
QG*=N {%5  
axis([0 90 0 1]) -=iGl5P?  
MP(R2y  
grid on XE* @*  
z6ISJb  
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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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