[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 1)P<cNj  
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1、光疏射向光密 pQ[o3p!&9  
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clear Q5`+eQ?_\  
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close all 6,V.j>z  
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n1=1,n2=1.45; gr[ "A  
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theta=0:0.1:90; ,\m;DR1  
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a=theta*pi/180; c*M)DO`y;h  
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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)); /`j K  
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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)); YQB]t=Ha  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Qn'r+X5t  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); '^.=gTk  
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figure(1) J4'!  
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subplot(1,2,1); oRvm*"8B  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ./BP+\)lO  
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legend('r_p','r_s','|r_p|','|r_s|') 3MBz  
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xlabel('\theta_i') v^lm8/}NO  
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ylabel('Amplitude') 6_`eTL=G  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |qudJucV  
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axis([0 90 -1 1]) A0N ;VYv  
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grid on $nD k mKl  
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subplot(1,2,2); |)P;%Fy9  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) gQ+_&'C  
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legend('t_p','t_s','|t_p|','|t_s|') .n|3A3:  
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xlabel('\theta_i') 0?4^.N n3  
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ylabel('Amplitude') ~pBxFA  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) GL0':LsZ  
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axis([0 90 0 1]) ~zOU/8n ,F  
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grid on pcxl2I  
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Rp=abs(rp).^2; E6&uZr  
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Rs=abs(rs).^2; v_F?x!  
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Rn=(Rp+Rs)/2; w7ABnX  
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Tp=1-Rp; [`nyq)  
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Ts=1-Rs; HBkQ`T  
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Tn=(Tp+Ts)/2; !m.')\4<  
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figure(2) n#AH@`&i  
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subplot(1,2,1); #2t\>7]  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) |8?{JKsg  
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legend('R_p','R_s','R_n') '`VO@a  
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xlabel('\theta_i') L7'X7WYf&  
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ylabel('Amplitude') 4>eg@sN  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |"&4"nwa  
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axis([0 90 0 1]) E$fy*enON  
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grid on \DdVMn  
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subplot(1,2,2); b<MMli  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) b8Ad*f\  
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legend('T_p','T_s','T_n') *J-jr8&  
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xlabel('\theta_i') TV2:5@33  
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ylabel('Amplitude') V#FLxITk  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) T
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axis([0 90 0 1]) "A$Y)j<#G  
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grid on [IW7]Fv<F  
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2、光密射向光疏 Lr&tpB<  
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clear ' ga2C\)  
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close all '%4,!  
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n1=1.45,n2=1; |F`'m":$m  
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theta=0:0.1:90; %Z|*!A+wN5  
c9'b`#'  
a=theta*pi/180; 9p<l}h7g  
ySZ)yT  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); I1jF`xQ&0  
04TV./uA  
rs=(n1*cos(a)-n2*sqrt(1-(n1/n2*sin(a)).^2))./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); C09@2M'  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); #e[5O|V~  
rjzRH  
ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); n_j[hA  
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figure(1) N 2\,6<  
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subplot(1,2,1); MtljI6  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) d!cx%[  
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legend('r_p','r_s','|r_p|','|r_s|') M*Xzr .6  
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xlabel('\theta_i') =:DNb(  
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ylabel('Amplitude') QQcJUOxT9  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 4I$#R  
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axis([0 90 -1.5 1.5]) !#QD;,SE+  
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grid on G|V ^C_:  
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subplot(1,2,2); >i'3\  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Rh39x-`Z  
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legend('t_p','t_s','|t_p|','|t_s|') O1QHG'00  
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xlabel('\theta_i') `ainJs:B  
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ylabel('Amplitude') }wn GOr  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) /%~`B[4F  
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axis([0 90 -0.5 3]) xZ .:H&0G  
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grid on b8O:@j2  
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Rp=abs(rp).^2; w\
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Rs=abs(rs).^2; qk
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Rn=(Rp+Rs)/2; % 30&6"  
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Tp=1-Rp; }pA0mW9  
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Ts=1-Rs; /Z-|E  
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Tn=(Tp+Ts)/2; U<Ag=vsZE  
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figure(2) T<
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subplot(1,2,1); N"T+. r  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) !s
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legend('R_p','R_s','R_n') R9k Z#  
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xlabel('\theta_i') =ayl~"bW  
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ylabel('Amplitude') [Qr#JJ  

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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) h ~v8Q_6  
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axis([0 90 0 1]) kowBB0  
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grid on #TXgV0\F  
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subplot(1,2,2); #Mrof9  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) }mz@oEB#vF  
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legend('T_p','T_s','T_n') xbsp[0I,  
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xlabel('\theta_i') .liVlo@  
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ylabel('Amplitude') 67?O}~jbG  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) yp9vgUs  
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axis([0 90 0 1]) C/_Z9LL?F  
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grid on E
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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

学习学习

学习学习 )q'~<QxI\  

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