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unispec[w_,n_,d_,min_,max_,epsi10_,epsi1e_,epsi20_,epsi2e_]:=Module[{},
dkx=(max-min)/n;
kx=Table[0,{i,1,n+1}];
swkx=Table[0,{i,1,n+1}];
k0=w/c0;
Table[{
kx[[ind]]=min+(ind-1)*dkx;
kz10=If[Im[Sqrt[epsi10 k0^2-kx[[ind]]^2]]>=0,Sqrt[epsi10 k0^2-kx[[ind]]^2],-Sqrt[epsi10 k0^2-kx[[ind]]^2]];
kz20=If[Im[Sqrt[epsi20 k0^2-kx[[ind]]^2]]>=0,Sqrt[epsi20 k0^2-kx[[ind]]^2],-Sqrt[epsi20 k0^2-kx[[ind]]^2]];
kz1e=If[Im[Sqrt[epsi10 k0^2-kx[[ind]]^2 epsi10/epsi1e]]>=0,Sqrt[epsi10 k0^2-kx[[ind]]^2 epsi10/epsi1e],
-Sqrt[epsi10 k0^2-kx[[ind]]^2 epsi10/epsi1e]];
kz2e=If[Im[Sqrt[epsi20 k0^2-kx[[ind]]^2 epsi20/epsi2e]]>=0,Sqrt[epsi20 k0^2-kx[[ind]]^2 epsi20/epsi2e],
-Sqrt[epsi20 k0^2-kx[[ind]]^2 epsi20/epsi2e]];
kz3=Sqrt[k0^2-kx[[ind]]^2];
rs31=(kz3-kz10)/(kz3+kz10);
rp31=(epsi10 kz3-kz1e)/(epsi10 kz3+kz1e);
rs32=(kz3-kz20)/(kz3+kz20);
rp32=(epsi20 kz3-kz2e)/(epsi20 kz3+kz2e);
tpstemp=Abs[1-rs31 rs32 Exp[2 I kz3 d]];
tpptemp=Abs[1-rp31 rp32 Exp[2I kz3 d]];
etemp=Exp[-2Im[kz3]d];
If[kx[[ind]]<=k0,{trans=(1-Abs[rs31]^2)(1-Abs[rs32]^2)/tpstemp^2+(1-Abs[rp31]^2)(1-Abs[rp32]^2)/tpptemp^2;
swkx[[ind]]=kx[[ind]]trans/(4Pi^2);},
{trans=4 etemp Im[rs31]Im[rs32]/Abs[1-rs31 rs32 etemp]^2+4 etemp Im[rp31]Im[rp32]/Abs[1-rp31 rp32 etemp]^2;
swkx[[ind]]=kx[[ind]] trans/(4Pi^2)}];}
,{ind,1,n+1}];
swtot=(swkx[[1]]+4Sum[swkx[[k]],{k,2,n,2}]+2 Sum[swkx[[k]],{k,3,n-1,2}]+swkx[[n+1]])*dkx/3]

Qtd={};
For[i=1,i<=3,i=i+0.2,
d=10^i nm;
Print[10^i];
Print[DateString[]];
Table[{
wi=wstart+(ii-1)dw;
a1=(wi-10)/c0;
ae1=(wi+10)/c0;
ae2=Max[0.6/d,const1 wi/c0];
ae3=Max[5/d,const2 wi/c0];
Q1[[ii]]=h wi/(Exp[h wi/(kb T1)]-1);
Q2[[ii]]=h wi/(Exp[h wi/(kb T2)]-1);
twp[[ii]]=unispec[wi,nk,d,a0,a1,epsi01[wi],epsie1[wi],epsi02[wi],epsie2[wi]];
twe1[[ii]]=unispec[wi,nk,d,ae1,ae2,epsi01[wi],epsie1[wi],epsi02[wi],epsie2[wi]];
twe2[[ii]]=unispec[wi,nk,d,ae2,ae3,epsi01[wi],epsie1[wi],epsi02[wi],epsie2[wi]];
sw[[ii]]=(twp[[ii]]+twe1[[ii]]+twe2[[ii]])(Q1[[ii]]-Q2[[ii]])}
,{ii,1,nw}];
Qt=(sw[[1]]+4 Sum[sw[[k]],{k,2,nw-1,2}]+2Sum[sw[[k]],{k,3,nw-1,2}]+sw[[nw]])dw/3;
AppendTo[Qtd,Qt];
Print[DateString[]];
]
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