[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 V}9wx%v  
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1、光疏射向光密 6Om-[^  
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clear Ks X@e)8u  
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close all w^`n  
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n1=1,n2=1.45; s/sH",  
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theta=0:0.1:90; _E'M(.B<  
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a=theta*pi/180; Q:-H UbB  
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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)); A2rr>  
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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)); '`[nt25N  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); Ju+@ROZ  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); s|,gn5  
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figure(1) sSD(mO<(  
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subplot(1,2,1); LDPo}ogs  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) V!},a@>p  
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legend('r_p','r_s','|r_p|','|r_s|') Uut,cQ". d  
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xlabel('\theta_i') YuPgsJ[m  
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ylabel('Amplitude') ZklidHL');  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 2s6Vy  
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axis([0 90 -1 1]) UBC[5E$  
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grid on /;.M$}Z>`  
g_n=vO('X  
subplot(1,2,2); L</"m[  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) ~}ewna/2  
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legend('t_p','t_s','|t_p|','|t_s|') :K8T\  
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xlabel('\theta_i') 8d$~wh  
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ylabel('Amplitude') O]2h=M@q.  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) '!f5|l9SC  
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axis([0 90 0 1]) -OkKLub  
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grid on i:[B#|%  
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Rp=abs(rp).^2; `L;I/Hp  
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Rs=abs(rs).^2; f%@Y XGf  
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Rn=(Rp+Rs)/2; 6Jj)[ R\5=  
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Tp=1-Rp; | c8u  
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Ts=1-Rs; 3(PU=  
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Tn=(Tp+Ts)/2; $x2<D :  
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figure(2)  UNhD  
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subplot(1,2,1); <B``/EX^  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) =8J\
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legend('R_p','R_s','R_n') 94lmsE  
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xlabel('\theta_i') u>? VD%  
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ylabel('Amplitude') \+>b W(  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) `/|=eQ")o@  
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axis([0 90 0 1]) .g|pgFM?  
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grid on Aw|3W ]  
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subplot(1,2,2); }3i@5ctQ  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) y-Ol1R3:c#  
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legend('T_p','T_s','T_n') TZ*ib~  
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xlabel('\theta_i') /JfXK$`  
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ylabel('Amplitude')
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) 8t
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axis([0 90 0 1]) 4u&l@BUr  
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grid on ;x7SY;0*  
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2、光密射向光疏 -WYJ1B0v  
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clear +Rvj]vd}&  
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close all (sl~n_<ds8  
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n1=1.45,n2=1; fXqe7[  
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theta=0:0.1:90; Jv?e?U  
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a=theta*pi/180; 8[Qw8z5-  
`BvcIn4do  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); xtnB:3  
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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)); m$ JQ[vgh  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); y^XwJX-f  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); FJ!>3V;}  
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figure(1) wx1uduT)  
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subplot(1,2,1); >i.+v[)
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) [sad}@R7  
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legend('r_p','r_s','|r_p|','|r_s|') W,<Vr2J[  
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xlabel('\theta_i') t (1z+  
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ylabel('Amplitude') UO&S6M]v7  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) j` x9z_  
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axis([0 90 -1.5 1.5]) v|"{x&I.  
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grid on <E^:{J95  
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subplot(1,2,2); Uarb [4OZ  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) f;b(W  
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legend('t_p','t_s','|t_p|','|t_s|') _A,m@BCz  
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xlabel('\theta_i') &x;nP6mV  
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ylabel('Amplitude') NBeGmC|  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) =thgNMDm"  
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axis([0 90 -0.5 3]) $a-~ozr`C  
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grid on b+C>p2%  
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Rp=abs(rp).^2; ^GbyAYEp  
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Rs=abs(rs).^2; a"v D+r7Ol  
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Rn=(Rp+Rs)/2; /0r2v/0  
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Tp=1-Rp; C*KRu`t  
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Ts=1-Rs; & .#0jb1r  
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Tn=(Tp+Ts)/2; ja:%j&:  
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figure(2) +(<CE#bb[  
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subplot(1,2,1); 8@r+)2  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) Q!"Li  
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legend('R_p','R_s','R_n') bc&:v$EGy  
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xlabel('\theta_i') $;@s  
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ylabel('Amplitude') >2wjV"W?  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) xLGAP-mx]  
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axis([0 90 0 1]) Qn<<&i~  
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grid on 7?A}qmv  
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subplot(1,2,2); O<+C$J|  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) C ]#R7G  
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legend('T_p','T_s','T_n') ckTnb  
beq)Frn^  
xlabel('\theta_i') doe[f_\  
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ylabel('Amplitude') N),Zb^~nw  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ucMl>G'!gX  
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axis([0 90 0 1]) 5-+Y2tp}  
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grid on nVYh1@yLy  
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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 #y2="$V  

Thanks