85
Rb atoms in a high-finesse ring-cavity optical lattice
Fixed values :
Cavity length
l
=
8.5 cm
Beam waist
w
0
=
130
m
m
Cavity mode volume
V
mode
=
2.1 mm
3
Cavity linewidth
k
=
2
p
22 kHz
Recoil shift
e
=
0.16
k
Lattice sites
N
l
=
8000
Values to be chosen :
Atom number
N
=
Temperature
T
=
m
K
Intracavity laser power
P
=
W
Laser wavelength
l
=
nm
Calculated values :
Potential depth
U
=
mK
Stark shift
U
=
MHz
Radial sec. frequency
w
r
=
kHz
Axial sec. frequency
w
z
=
kHz
Radial cloud radius
r
0
=
m
m
Axial cloud radius
z
0
=
m
m
Cloud density
n
0
=
/cm
3
Normalized values :
Detuning from atom
D
a
=
k
Pump parameter
h
=
k
Spontaneous decay
g
0
=
k
1-photon coupling
U
0
=
k
Effective coupling
N U
0
=
k
Detuning from cavity
D
c
=
k