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xiegangmai: ½ð±Ò+3, ¹ÄÀøÌÖÂÛ½»Á÷£¡ 2013-07-14 22:19:37
xiegangmai: ½ð±Ò+3, ¹ÄÀøÌÖÂÛ½»Á÷£¡ 2013-07-14 22:19:37
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format long e for i=1:81 n(i,1) = neff(i,1); [n_imag,n_pos] = max(imag(neff(i,2:11))); n(i,2) = real(neff(i,n_pos+1)); end lamda = n(:,1); pcfneff = n(:,2); P = polyfit(lamda,pcfneff,5); tx =linspace(1.3e-6,1.8e-6,10000); ty = polyval(P,tx); c=3e8; D1=-1*tx(1:end-2)./3e8.*(diff(diff(ty)./diff(tx))./diff(tx(1:end-1)))*40e6; plot(tx(1:end-2),D1,'linewidth',1.5) grid on; xlabel('\lambda(\mum)') ylabel('Didpersion(ps/(nm.m)') title('Dispersion of the PBG guiding PCF') hold off ÕâÊÇÎÒÃÇʦÃÅʦÐÖ±àµÄmatlab£¬ÄãÓÃcomsol with matlab£¬¾Í¿ÉÒÔËãɫɢ¡£É«É¢¹ØÏµ£¬dw/dk.¾Í¿ÉÒÔÁË£¬ºóÃæµÄÒ²ÊÇÎÒÒª×öµÄ£¬ÒÔºó¿ÉÒÔ½»Á÷¡£ |
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