[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 aO(iKlZ$  
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1、光疏射向光密 /s+I
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clear }kItVx  
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close all 9c*B%A8J  
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n1=1,n2=1.45;
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theta=0:0.1:90; y3j"vKG  
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a=theta*pi/180; 6ce-92n  
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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)); .}Xf<G&  
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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)); 7{w}0PMx  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); /J!:_Nq  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); 7hu7rWY`E  
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figure(1) :?y Ma$  
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subplot(1,2,1); j`$$BVZ  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) uifVSf*  
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legend('r_p','r_s','|r_p|','|r_s|') n{etDO  
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xlabel('\theta_i') h7T),UL  
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ylabel('Amplitude') bX:h"6{=R  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 96#]P  
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axis([0 90 -1 1]) $)8,dS  
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grid on Yc_(g0NK  
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subplot(1,2,2); -}h^'#  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) F
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legend('t_p','t_s','|t_p|','|t_s|') W-&V:S{<  
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xlabel('\theta_i') Vq{3:QBR  
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ylabel('Amplitude') 6'@{ * u  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ez*QP|F*9  
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axis([0 90 0 1]) >{:hadUH  
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grid on kL0K[O
 
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Rp=abs(rp).^2;
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Rs=abs(rs).^2; :|niFK4  
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Rn=(Rp+Rs)/2; ]Zc|<f;  
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Tp=1-Rp; !8cV."~  
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Ts=1-Rs; j4!O,.!T  
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Tn=(Tp+Ts)/2; p:Lmf8EI  
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figure(2) aVc{ aP  
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subplot(1,2,1); Z 
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) A0k?$ko  
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legend('R_p','R_s','R_n') {A
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xlabel('\theta_i') 5h6o}  
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ylabel('Amplitude') lNa+NtQu  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) GjHR.p?-  
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axis([0 90 0 1])  G7al@  
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grid on ~qGW94  
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subplot(1,2,2); FC,=g`Q!  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) Hy[: _E  
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legend('T_p','T_s','T_n') <L#d<lx  
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xlabel('\theta_i')
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ylabel('Amplitude') uy3<2L#.  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) &.*UVc2+Y  
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axis([0 90 0 1]) K=v:qY4Z  
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grid on =ZIT!B?4  
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2、光密射向光疏 d7X&3L%Oq  
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clear .Q*X5Fc  
uPA (1  
close all G:1'}RC :  
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n1=1.45,n2=1; @dDeOnF  
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theta=0:0.1:90; YZBh}l6t  
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a=theta*pi/180; WKEb '^  
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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)); %T{]l;5  
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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)); o|(5Sr&H  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); B )r-,M  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2));
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figure(1) $RaN@& Wm  
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subplot(1,2,1); 6Dq4Q|C  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Z',!LK!  
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legend('r_p','r_s','|r_p|','|r_s|') _/s"VYFZ  
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xlabel('\theta_i') 9oWU]A\k>  
x<NPp&GE  
ylabel('Amplitude') IU
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Wy}I"q[~So  
title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) |^pev2g  
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axis([0 90 -1.5 1.5]) @X2*O9  
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grid on }{o!  
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subplot(1,2,2); ETe4I`d{  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Ey46JO"  
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legend('t_p','t_s','|t_p|','|t_s|') xP9(J 0y  
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xlabel('\theta_i') ~Iu!B Y  
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ylabel('Amplitude') gE-y`2SU  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) _u`YjzK  
j2Zp#E!  
axis([0 90 -0.5 3]) ~GaGDS\V  
ly[LF1t  
grid on 4q$~3C[  
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Rp=abs(rp).^2; D6sw"V#  
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Rs=abs(rs).^2; N%y i4  
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Rn=(Rp+Rs)/2; H"C'<(4*\  
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Tp=1-Rp; mP(3[a_Q  
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Ts=1-Rs; ^NW[)Dq1<  
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Tn=(Tp+Ts)/2; Qw5nfg3T  
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figure(2) R$awgSE  
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subplot(1,2,1); )xGAe#E~j  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) L+%"ew  
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legend('R_p','R_s','R_n') WeI+|V$  
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xlabel('\theta_i') qfkHGW?1/j  
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ylabel('Amplitude') VSj!Gm0LB  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 5sD,gZ7  
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axis([0 90 0 1]) Y4T")  
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grid on g|=_@ pL  
R#(0C(FI^  
subplot(1,2,2); .=_p6_G  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) xS1
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legend('T_p','T_s','T_n')
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xlabel('\theta_i') .u`[|:K  
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ylabel('Amplitude') ?I.9?cQXZ  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) r;cDYg  
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axis([0 90 0 1]) (iIw}f)w  
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grid on .{Y;6]9[  
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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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学习学习 |:)Bo<8  

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