High Reflective Coating
Dielectric Coating provides high reflectance over a
broad bandwidth. Ideal for a tunable laser or in white light
applications, used in 250nm ~ 2200nm. It is generally used in single
wavelength laser cavity where the lowest cavity loss at a center
wavelength is essential.
Metallic Coatings have low peak
reflectance, mechanical durability and high damage threshold.
Insensitive to angle of incidence and polarization, used in near-UV,
visible and near-IR.
Dielectric High Reflective Coatings
(DHR)
Dielectric coating can produce very high reflection
(more than 99.8% at designed wavelength), minimizing losses in
nearly all optical systems and is very durable, easily cleaned, and
resistant to laser damage. They are commonly used in a single
wavelength laser cavity where the lowest cavity loss at a center
wavelength is essential. Center wavelength range from 250nm to
2200nm for DHR coatings.
Spectral Curves |
Specifications |
|
P/N: DHR
Dielectric Mirror Coating
0กใ incident angle, R0>99.8% @1064nm
45กใ incident angle, R0>99.5% @1064nm (Rs>99.9%,
Rp>99.2%) |
Protected Aluminum High Reflective Coatings
(PAHR)
For general broadband use, a protected aluminum coating
offers the best option. A SiO2 coating is used to protect the
delicate aluminum coating making it suitable for laboratory and
industrial use.
Spectral Curves |
Specifications |
|
P/N: PAHR
Protected Aluminum
Ravg>87%
@400~1200nm |
UV
Enhanced Aluminum High Reflective Coatings (EAHR)
Aluminum
coated mirrors are cost effective and offered in a variety of sizes.
Bare aluminum is extremely delicate and susceptible to damage. A
protective overcoat is layered over the aluminum to make it damage
resistant. Our UV Enhanced coating is made by using an overcoat of
MgF2 which is transparent in the UV allowing R>80% @200nm. Widely
used in where the consistent high reflection in a wide spectral rang
and UV is necessary.
Spectral Curves |
Specifications |
|
P/N: EAHR
UV Enhanced Aluminum
Ravg>93%
@400~1200nm |
Protective Silver High Reflective Coatings
(PSHR)
Silver has been the material of choice because it
reflects well from 400 to 1000 nm over a broad range of angles. But
bare silver tarnishes and corrodes in normal atmospheres,
potentially reducing amplifier performance over time. To avoid this,
our new coating designe consists of adhesion and passivation layers
on each side of the sputtered silver, improving mechanical and
chemical durability; a layer of silicon nitride, which improves
mechanical durability and protects from corrodants; and metal oxide
layers that return reflectance to acceptable levels,
Spectral Curves |
Specifications |
|
P/N: PSHR
Protected Silver
Ravg>95%
@450~12000nm |
Protective Gold High Reflective Coatings (PGHR)
Gold
is the most efficient reflective coating throughout the entire IR
range.
Spectral Curves |
Specifications |
|
P/N: PGHR
Protected Gold
Ravg>98%
@2000~12000nm |
Note: The above coatings are just a standard ones for
your reference. OP-Unite will design a most suitable one for your
products according to your detailed requirements. To make sure the
products get the best performance. |