depletion of control field during the propagation of ultraslow optical solitons
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Depletion of control field during the propagation of ultraslow optical solitons. Speaker : Hui-jun Li. Collaborator : Prof Guoxiang Huang. Field of Study: Nonlinear Physics and Nonlinear Optics. - PowerPoint PPT PresentationTRANSCRIPT
Depletion of control field during the propagation
of ultraslow optical solitons
Speaker : Hui-jun Li
Collaborator : Prof Guoxiang
Huang Field of Study: Nonlinear Physics and Nonlinear Optics
Outline 1. Introduction
2. Model
3. Numerical result on the evolution of probe and control fields
4. Summary
1. Introduction
Why do the EIT being important ?
1. Introduction
EIT
1
3
2
Changing the dispersion relationship,
the absorption and group velocity
Enhanced the Kerr nonlinearity
p c
2 . Model
1
2
3
2
3
p c1 1 p 3
2 2 c 3
3 3 p 1 c 2
*p 13 3 1
*c 23 3 2
2p
p
2c
c
i d A A 0t
i d A A 0t
i d A A A 0t
1i A A 0
z c t
1i A A 0
c
z
c
c t
2
2
kw
kw
WW
W
W
W
W W
W
Model
j j j
-11
d
0 s
gD
D
2
a p(c) p(c) 13(23)
13(23)0
N ω e pκ =
2 ce
g
h
z
Adiabatons and soliton
12
3
p c
0 10 200
15
30
45
p
0
c
0
t/0
z= 0 cm z= 7.5 cm z= 15 cm z=22.5 cm z= 30 cm
12
3
2
3
pc
-3 0 3 6 90.0
1.5
3.0
t/0
z= 0 cm z=0.3 cm z=0.6 cm z=0.9 cm z=1.2 cm
3. Numerical result on the evolution of
probe and control fields
4. Summary
summary
1. Discuss the physical phenomenon between
adiabatons and soliton.
2. Supply the project to realize soliton in EIT
media.
Thank you!