In[]:=
Clear["`*"]
In[]:=
γn= 17600000;​​Η0 = 1000;​​Μ0 = 140;​​μ0 =4*π*10^-7;​​ω=3.1*10^10;​​k0=150*10^2;​​v0=0;​​(* σ=2*10^4; *)​​d=10*10^-6;
In[]:=
Y0=*
1+*
μ0*σ
k0^2
(ω-k0*v0)
​​Y1=*
1+*
μ0*σ
k0^2
(ω-k0*v0)
Out[]=

1+(0.+0.000173137)σ
Out[]=

1+(0.+0.000173137)σ
In[]:=
ωh = γn*Η0​​ωm = 4*π*γn*Μ0//N​​ω1=
ωh(ωh+ωm)
//N
Out[]=
17600000000
Out[]=
3.09635×
10
10
Out[]=
2.92356×
10
10
In[]:=
θ0=
1
1-*Y0
(-*ωm ^2*Y0+ωm *(1+*Y0)(ωh+ω))​​θ1=
1
1-*Y1
(-*ωm ^2*Y1+ωm *(1+*Y1)(ωh-ω))
Out[]=
1.50483×
21
10
1-
1+(0.+0.000173137)σ
+(9.58741×
20
10
+0.)
1+(0.+0.000173137)σ
1+
1+(0.+0.000173137)σ

Out[]=
-4.14911×
20
10
1-
1+(0.+0.000173137)σ
+(9.58741×
20
10
+0.)
1+(0.+0.000173137)σ
1+
1+(0.+0.000173137)σ

In[]:=
V0=
θ0*d
2ω
​​V1=
θ1*d
2ω
Out[]=
1.6129×
-16
10
1.50483×
21
10
1-
1+(0.+0.000173137)σ
+(9.58741×
20
10
+0.)
1+(0.+0.000173137)σ
1+
1+(0.+0.000173137)σ

Out[]=
1.6129×
-16
10
-4.14911×
20
10
1-
1+(0.+0.000173137)σ
+(9.58741×
20
10
+0.)
1+(0.+0.000173137)σ
1+
1+(0.+0.000173137)σ

In[]:=
ReImPlot[{V0,V1},{σ,2*10^2,2*10^4}]
Out[]=