PBC Method Flat Mirror

1
PBC Method Flat Mirror
Dielectric Mirror
Gas Mixture
Pump
Window
PM
PBC
HR Coated Fiber Tip
SMF
PBGF
Light
PM
Vacuum
Collimating Lens
2
PBC Method Curved Mirror
Dielectric Mirror
Pump
PM
PBC
HR Coated Fiber Tip
SMF
PBGF
Light
PM
Vacuum
3
Chamber Assembly
4
Chamber Cross Section
5
Conflat flange for windows
O-ring groove to be machined on opposite of knife
edge
Quantity 4
O-ring ID 0.737 Thickness 0.103
¼ Deep Tapped hole for 4- 40 screw
2.75 Conflat flange with 0.505 Bore hole
(already purchased this way)

• Enlarge bore hole to diameter 0.637
• (radius 0.3185)
• Groove width 0.103x30 0.1339
• Groove depth should be 70 of 0.103 .0721
• Bottom of groove should be smooth for O ring
  vacuum seal

Radius 0.6125 Holes are 120 apart
Lesker flange part s 0.505 Bore -
F0275X050N Blank F0275X000N
0.637
OD ID 2x(thickness 30) 0.737
2x(0.103.0309) 1.0048
0.737
Will have 1 wedge window to install with teflon
holder so that when chamber is brought to
atmosphere, window doesnt fall off (next page)
1.0048
2.75
Tapped holes are on both sides offset by 60
degrees to not interfere with each other.
SIDE
6
Teflon window holder
Quantity 4
Should be large enough to fit 4-40 screw (30
drill size 0.1285 for free fit) Counter bore
for screw head
Raw teflon tube OD1.55 ID0.75
Top
Side
0.6125
Holes are 120 deg apart
Radius 0.6125
0.25
1.05
0.75
1.05

• Recess to catch window
• 0.05 bigger than window
• Depth of recess needs to be 0.050

1.55
7
Fiber holder
Quantity 4
Swagelok SS-1-UT-A-4 (1/16 tubing
hole) Ultra-Torr Vac fitting adapter
Collar to attach to vacuum chamber (threads
welded to flange) AN corporation S-50-KM
(0.515 ID, 5/8 tube OD)
1/16 tube hole
3/16
1/4
½ OD tubing
Overall length needs to be 6, so ½ OD tubing
should probably be about 5
Mike wasnt sure what this piece was, though it
is important for the interior to be conical so
that the fiber will be guided through.
8
Conflat flange for fiber holder
Quantity 3
O-ring ID 0.737 Thickness 0.103
2.75 Conflat flange

• Bore hole to diameter 0.620
• (radius 0.310)

Lesker flange part s 0.505 Bore
F0275X050N Blank F0275X000N
0.620
2.75
SIDE
9
Chamber Layout
C2H2
Buffer Gas
10
Chamber Layout (Cont.)
11
Modified Acetylene Delivery System
12
Shelves
13
Shelves (Cont.)