12_FiltersandEtalons_2013_final.qxd
12/28/2012
4:14 PM
Page 12.23
Optical Coatings
Optical Materials
Neutral Density Filters
Absorptive Neutral Density Filter Sets
Windows
Prisms and
Retroreflectors
Spherical
Lenses
$ Filters should be loosely mounted to avoid external stress.
$ These sets are recommended for low-power applications because of
the filters’ absorbing properties.
Schott optical glass or equivalent
Nominal at 546 nm
0.5 mm to 4.0 mm, depending on optical density
≤3 arc minutes
60-40 scratch and dig
90% of central dimension
Mirrors
$ Custom options are available, contact CVI Laser Optics
for more information
.99
.95
NG-12
Beamsplitters
.90
NG-11
.70
NG-5
.50
NG-4
.10
.01
10-3
10-4
10-5
NG-9
NG-3
NG-10
NG-1
200
300
400
500
600
700
800
900
1000
1100
WAVELENGTH (nm)
Waveplates
INTERNAL TRANSMITTANCE (ti)
$ Multiple filters can be stacked to vary density.
Optical Material
Optical Density
Thickness
Surface Finish
Surface Quality
Clear Aperture
Multielement
Lenses
CVI Laser Optics offers twelve absorptive ND filter sets to provide the
greatest flexablity in size and variable optical density options needed for
your application.
SPECIFICATIONS:
Absorptive Neutral Density Filter Sets
Cylindrical
Lenses
Absorptive Neutral Density Filter Sets
Internal transmittance for 1 mm glass thickness
Polarization
Components
Included Densities
Size (mm)
Shape
PART NUMBER
5
5
8
8
8
0.3, 0.5, 1.0, 2.0, 3.0
0.3, 0.5, 1.0, 2.0, 3.0
0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, 4.0
0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, 4.0
0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, 4.0
f25
ƒ50.8#50.8
f25.0
f25.4
ƒ50.8#50.8
Round
Square
Round
Round
Square
FSA-25.0M
FSA-2x2
ANGS-25.0M
ANGS-1.00
ANGS-2X2
ANGS • FSA
Appendix
Index
Filters and Etalons 12.23
www. cvilaseroptics.com
Filters
and Etalons
Number of
Elements
Femtosecond
Components
Absorptive Neutral-Density Filter Sets