Ldp299 V
 !"#$sai%
&'()*+,()*-,()*+.,/01,2
-,()*+34,.,56'()*+,()*
748,9
&:;(<()4,9+,=,.,5
()34,9+,=,.,56()34,9+>!?@,#()
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,CD
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XB,`,)O?<>a5B7>-b*7Cc#$sai ?
&b5-b*O4,.,5O34()*
_,$LdBe,7-b*34fO44
g!?@BO7,,.,5O,,9()*
6_>-b*O-,,.,5 .,/01,,.,5
hB,`,iCO+8eO,K+734,K+<20jf+8
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nb 0](L sai +=48,9,`,iC?^oK%
&4+jpVq!?@4,.,5V!?@202
b34()*V-b6b34,.,5V!?@202
*`,iCjl"O*JrO+8>fe**O2$Y
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B+8D*?^liC,=,K+DR7P_c+w-b?/(j$
,+x
&*OUXE"I*OnTE"I*OARE"I6*OThE"I
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s
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s
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u
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s

y
$j
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Cv
u
#
s
j
t
,,
y

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y
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&
  
 & C= ω −

 
 & C= ω −

 
 & & C= +
6
  
 & & C= +
R`,iC/S4,=+88,?^;/iC`,30+ 
,9,`,
&
 

k k
T
m
π
+
=

 
 

E I
k k
T

k k m
π
=
+

1
Ldp299 V

 

E I
m
T
k k
π
=
+
6
 
 
E I

E I
k k m
T
k k
π
+
=


UB,=+8**`iC,=,K+D*7P_@,@,,>f,l
(<R,-,,.,5,9>f,l
&*OR,P"R,P"R*,P"6*,P"
Tz`>f,l+8

m
iC?^oK;,+x

T
D*OTE"IOb$>f,l+],
+8

m
;,+x

T
D*OhE"I73`,f>f,liC ,+x,9
;&bDE"IbDORE"IbD*OE"I6bD*ORhE"I
Xb?6J,(3p
&,{0,8,0,
"0",6?M0",
h|? ,96J,=5
cmtAx I

,"E
π
ω
+=
z,W},q[,
%&[,,2L>-b^,[,,2L,=CDG&

[,,2L>-b^,#6[,,2L,=CD&
nB6JgWLD*,=CD&P^,#b 
ϕ
&
A
π
−



A
π



T
π
−

6
T
π
*|? q,9(6J,=5S
cmtx I,"E

ω
=
Z
cmtx I


,"EA

π
ω
−=
Z
cmtx I,"E
A
ω
=
&COC8,0COCA8,0 COCA,{06COCA8,0
`,iC6J,+ "`,>!?@,#(),
*
D
T
π
P",W
D*[,,`,>!?@,#()^,'2$Y

D*|? ,9,`,
&
IIE

,"E* cmtx
π
ω
−=

IIE


,"E* cmtx
π
π
+=


IE,"* cmtx
π
=
6
IER,"UO cmx
π
=

BJ?<5oR,3?)?WPT0[.,;*
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,,9%
RB,`,iC,=+8eD***O666J(<&D*,O,,9+>
CD*,A
P
P",K,9iC(<%
2