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Laser Black Properties and Tech Data
Laser Black
Properties:
Laser Black is a multi-layer metallic oxide. Its deep velvety-black
surface is somewhat fragile since it achieves its remarkable
absorption by creating a micro-dendritic structure on the
optical surface (see SEM Photo). Unfortunately these dendrites will show evidence
of being touched however the overall performance of the surface
will not be degraded if this “touching” is performed
in a small area. Being an inorganic coating, Laser Black does
not outgas and when vibrated ultrasonically in acetone shows
no flaking or chipping.
Cryogenic Performance:
Prior to it's application on the Hubble Telescope's Wide Field Camera for Survey's, Laser Black (on aluminium) was plunged into liquid nitrogen with no negative impact.
Substrates:
Laser Black can be applied to any metallic substrate and most
plastics. It requires a deposition of copper approximately
10-12 microns thick.
(see
specification plating and
substrates)
Applications:
Among the application for Laser Black are radiation shields
for micro-bolometers otherwise known as Cold Shields,. Sunshades
and baffled components for space optics.
Reflectance
Graphs
PDF
Document of Charts
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Measurements made by
Yvonne Barnes at Nist
(click image to enlarge) |
Measurements made by
Surface Optics, San Diego, CA
(click image to enlarge) |
Measurements made by TRW,
Redondo Beach, CA
(click image to enlarge) |
IR Reflectivity Data for Laser Black
(click image to enlarge) |
IR Reflectivity Data for Laser Black
(click image to enlarge) |
IR Reflectivity Data for Laser Black
(click image to enlarge) |
BRDF Curves, Surface Optics
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Please
Note:
A number of Government and Aerospace contractor Laboratories,
both here and in the UK, are part of a continuous characterization
of the optical properties of Laser Gold and Laser Black.
As this data becomes available, it will be posted in this
space, however due to possible competitive situations,
the organizations that produced the data may not always
be identified here. |
| Perkin-Elmer Lambda 750 Infrared Spectrophotometer with intergrating sphere. |
| SEM Photo of Laser Black. |
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