Plano and Spherical Mirrors

Mirrors or total reflectors are used in laser cavities as rear reflectors and fold mirrors, and externally as beam benders in beam delivery systems.

Silicon is the most commonly used mirror substrate; its advantages are low cost, good durability, and thermal stability.

Copper is typically used in high-power applications for its high-thermal conductivity.

Molybdenum’s extremely tough surface makes it ideal for the most demanding physical environments. Molybdenum is normally offered uncoated.

 

Specifications
Standards
Dimensional Tolerances Diameter
Thickness
+0.000”-0.005”
+/-0.010”
Parallelism Plano
Radiused, Diameter < 1”
Radiused, Diameter > 1”
<= 3 arc minutes
<= 10 arc minutes
<= 5 arc minutes
Clear Aperture (polished) 90% of diameter
Surface Figure (power/irregularity) at 0.63µm Plano and
Radiused, r > 1 m

Power: 2 fringes
Irregularity: 1 fringe

Scratch-Dig 10-5
Part #
Description
Diameter
(inches)
Diameter
(mm)
Edge
Thickness
(inches)
Edge
Thickness
(mm)
Side 1
Coating
466761
Si
0.5
12.7
0.118
2.99
EG
850800
Si
1.0
25.4
0.120
3.05
ES
690933
Si
1.5
38.1
0.375
9.53
MMR
221987
Si
1.75
44.45
0.375
9.53
EG
408825
Si
2.0
50.8
0.200
5.08
DEMMR
341534
Si
2.0
50.8
0.200
5.08
TRZ
674480
Si
2.0
50.8
0.400
10.16
TRZ
614835
Si
3.0
76.2
0.250
6.35
TRZ
148570
Cu
1.1
27.94
0.236
5.99
EG
370229
Cu
1.969
50.01
0.200
5.08
TRZ
482518
Cu
1.969
50.01
0.354
8.99
EG
832216
Cu
1.969
50.01
0.394
10
TRZ
658306
Cu
2.362
59.99
0.236
5.99
TRZ
137530
Cu
4.0
101.6
0.75
19.05
PS
650010
Cu-WC*
4.25
107.95
1.5
38.1
ES
229095
Mo
4.0
101.6
0.350
8.89
UC
195891
Cu-WC*
2.756
70
0.984
25
UC
*WC is water-cooled copper
The above parts are plano. For spherical parts, please contact a II-VI sales representative.
Contact a II-VI sales representative for exact specifications.

Specifications
Standards
Dimensional Tolerances Diameter
Thickness
+0.000”-0.005”
+/-0.010”
Parallelism Plano
Radiused, Diameter < 1”
Radiused, Diameter > 1”
<= 3 arc minutes
<= 10 arc minutes
<= 5 arc minutes
Clear Aperture (polished) 90% of diameter
Surface Figure (power/irregularity) at 0.63µm Plano and
Radiused, r > 1 m

Power: 2 fringes
Irregularity: 1 fringe

Scratch-Dig 10-5