[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 zN}1Qh  
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1、光疏射向光密 /^_~NF#  
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clear /.PjHTM<  
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close all f#4,2Xf  
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n1=1,n2=1.45; SN w3xO!;&  
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theta=0:0.1:90; F3BWi[Xh  
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a=theta*pi/180; E=N44[`.G  
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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)); :r5DR`Rfm  
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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#e1?  
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tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); p)_v.D3i  
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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) pPI'0x  
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subplot(1,2,1); oWCy%76@  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) ]IX6>p,  
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legend('r_p','r_s','|r_p|','|r_s|') \}CQo0v  
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xlabel('\theta_i') W lDcKY  
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ylabel('Amplitude') 82w;}(!  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) vTrjhTa\  
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axis([0 90 -1 1]) [VvTR#^  
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grid on NO(^P+s  
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subplot(1,2,2); '.Ww*N  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) Cxn<#Kf\-<  
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legend('t_p','t_s','|t_p|','|t_s|') @UbH;m  
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xlabel('\theta_i') JCL+uEX4S  

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ylabel('Amplitude') {VBn@^'s  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) pKSn 3-A  
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axis([0 90 0 1]) 4r'QP .h  
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grid on i=m5M
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Rp=abs(rp).^2; ;m/h?Y~  
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Rs=abs(rs).^2; <>gX'te  
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Rn=(Rp+Rs)/2; bn$('  
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Tp=1-Rp; x,CTB  
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Ts=1-Rs; o'oA.'ul  
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Tn=(Tp+Ts)/2; |E%i t?3M  
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figure(2) I:~KF/q  
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subplot(1,2,1); \a_75^2  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) ^M:Y$9r_s  
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legend('R_p','R_s','R_n') iy<|<*s2D  
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xlabel('\theta_i') Y/%(4q*'  
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ylabel('Amplitude') ^{Vt  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) Ofx]  
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axis([0 90 0 1]) \ F\ /<  
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grid on 2HNAB4E  
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subplot(1,2,2); :V9%R~h/  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) b7^Db6qu  
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legend('T_p','T_s','T_n') KQf=t0Z=Ce  
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xlabel('\theta_i') Bf21u9  
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ylabel('Amplitude') y[D8rFw  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) <:n!qQS6  
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axis([0 90 0 1]) gNWTzz<[f>  
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grid on r_x|2 AoO  
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2、光密射向光疏 Wik8V0(  
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clear !U"?vSl  
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close all Z1y=L$t8  
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n1=1.45,n2=1; TPF5?  
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theta=0:0.1:90; CX}==0od  
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a=theta*pi/180; c gOkm}h  
Ncr*F^J4  
rp=(n2*cos(a)-n1*sqrt(1-(n1/n2*sin(a)).^2))./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); u85dG7  
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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)); q2e=(]rKE{  
P?o|N<46  
tp=2*n1*cos(a)./(n2*cos(a)+n1*sqrt(1-(n1/n2*sin(a)).^2)); i",7<01  
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ts=2*n1*cos(a)./(n1*cos(a)+n2*sqrt(1-(n1/n2*sin(a)).^2)); P#l"`C /  
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figure(1) TY`t3  
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subplot(1,2,1); J=t@2
  
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plot(theta,rp,'-',theta,rs,'--',theta,abs(rp),':',theta,abs(rs),'-.','LineWidth',2) Tl!}Rw~Pg  
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legend('r_p','r_s','|r_p|','|r_s|') .Y5o&at6s  
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xlabel('\theta_i') KL\hV .6  
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ylabel('Amplitude')  va[r~  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) {fI"p;|  
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axis([0 90 -1.5 1.5]) ^oMdx2Ow#  
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grid on e|d~&Bk0  
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subplot(1,2,2); a797'{j#PI  
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plot(theta,tp,'-',theta,ts,'--',theta,abs(tp),':',theta,abs(ts),'-.','LineWidth',2) dqgH"g  
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legend('t_p','t_s','|t_p|','|t_s|') eL_Il.:  
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xlabel('\theta_i') Dnp><%  
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ylabel('Amplitude') 3_ ZlZ_Tq  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) LUzn7FZk  
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axis([0 90 -0.5 3]) WXQ+`OH7  
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grid on P?h
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Rp=abs(rp).^2; oV'G67W  
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Rs=abs(rs).^2; ^Rb*m
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Rn=(Rp+Rs)/2; 7hhv/9L1  
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Tp=1-Rp; l\WN  
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Ts=1-Rs; %.WW-S3  
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Tn=(Tp+Ts)/2; j@R"AP}  
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figure(2) f0{j/+F_o  
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subplot(1,2,1);  Dn#^-,H  
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plot(theta,Rp,'-',theta,Rs,'--',theta,Rn,':','LineWidth',2) p$}/~5b}4  
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legend('R_p','R_s','R_n') _%u t#  
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xlabel('\theta_i') n.XgGT=L  
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ylabel('Amplitude') c{j)beaS  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) av bup  
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axis([0 90 0 1]) T037|k a{  
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grid on ^% L;FGaA  
gwbV$[.X  
subplot(1,2,2); YjiMUi\V  
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plot(theta,Tp,'-',theta,Ts,'--',theta,Tn,':','LineWidth',2) sB5@6[VDI  
Sd/7#  
legend('T_p','T_s','T_n') v]#[bqB.b  
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xlabel('\theta_i') ]&s@5<S[  
niyI$OC  
ylabel('Amplitude') VRTJKi  
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title(['n_1=',num2str(n1),',n_2=',num2str(n2)]) ??f,(om  
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axis([0 90 0 1]) b&6lu4D  
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grid on PZVH=dagq  
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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 7[uN;B#V  

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