Benefits
-
Extends crystal life by
preventing surface
degradation in humid environments.
-
Coated surfaces can be cleaned
to improve
component and system longevity.
-
Low refractive index makes this
coating
an excellent match to BBO for AR coatings.
-
Laser damage threshold exceeds
1.0 GW/cm2
on KDP (1064 nm, 20 Hz, 20 ns
pulses).**
-
Wide transparency range: ~200 to
2000
nm.
** Testing by Big Sky Laser,
Inc.
Substrates
-
Protects many water-sensitive
crystals.
-
Candidate crystals include: ADP,
AD*P,
BBO, KDP, KD*P, LBO & LiIO3.
-
Coating under development for
the following: CsBr, CsCl, CsI, KBr, KCl, KI &
NaCl.
Humidity Barrier AR coating on BBO for Common
Wavelengths
(Click for full size
image)
Moisture Resistance
(l/4
thickness at 1064 nm)
-
KDP: More than 3000 hours
at 25°
C and 80% Relative Humidity without surface degradation using
Nomarski
microscopy @ 400X magnification.
-
BBO: More than 2000 hours
at 25°
C and 80% Relative Humidity without surface degradation using
Nomarski
microscopy @ 400X magnification.
Humidity Barrier AR coating on KDP for Common
Wavelengths
(Click for full size image)
Questions?
Contact Cleveland Crystals to
discuss
the benefits of the Humidity Barrier AR Coating.
|
