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Optical
Coatings |
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| Single Layer MgF2 Antireflective
Coatings (SAR)
Magnesium fluoride (MgF2) is an excellent coating
material in UV wavelength, and the most widely used thin
film material for optical coatings for its wide
transmission range. Its performance is not outstanding
but represents significant improvement compared to an
uncoated surface. |
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R0<1.5%@540nm
R<2%@400-700nm
R0< 2.0%@540nm
R<3.0%@400-700nm
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| Multi-layer Antireflective
Coatings (VAR) The lowest
reflectivity at a center wavelength
·Center wavelength range from 250nm to 2200nm.
·Applied to single laser wavelength or multiple,
close-spaced wavelength system
·Can be deposited to all of our substrates |
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| Multilayer Broadband Antireflective
Coatings (WAR)
Different from single layer MgF2 broadband
antireflective coating, the multilayer Broadband
antireflective coating can reach higher transmission for
broadband wavelength. Therefore, it is the ideal for a
wide range of multi-wavelength laser and white light
application. Please notice that the wavelength range and
reflectivity of the coating is obviously changed
according to the incident angle. |
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| Dual Wavelength Band Antireflective
Coatings (DAR)
This coating allows two center wavelengths radiation
pass through the substrate with high transmission. This
coating is often used in frequency doubling systems or
the other multi-laser output systems, as the Nd:YVO4
laser (1064nm) and its second harmonic generation
(532nm) green laser. |
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Partial Reflective
Coating (PR)
When a
narrow wavelength light is incident on this
interface, part of the light is reflected and part
is transmitted. Such coating always shows a high
reflective for S-polarization radiation and high
transmission for P-polarization radiation. The main
application of this coating is for beamsplitter.
Also it is widely used in inspection system, so that
we can get a part radiation for measure as a datum
light. |
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| Dielectric High Reflective
Coating (DHR)
It is well known that dielectric coating can produce
very high reflection (more than 99.8% at design
wavelength). They are generally used in a single
wavelength laser cavity where the lowest cavity loss
at a center wavelength is essential. Our company can
provide such coating with center wavelength from
350nm to 2000nm according to customer’s requirement.
When selecting a suitable dielectric high reflection
coating, the damage threshold requirement must be
considered. |
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| Metallic High Reflective
Coating (MHR) Our company
provides metallic high reflective coating, These
coatings are applied where a consistent high reflection
over a wide spectral range is necessary. Their
reflectivity is not higher than dielectrics high
reflection coating, but their spectrum can cover the
near UV, visible and near-IR. In order to prevent these
metallic coatings from oxidization, these coatings have
dielectric overcoat. |
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| Diode Laser Pumped Coating(DPO) |
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KTP
：AR/AR@1064&532nm
R<0.1%@1064nm
R<0.5%@532nm
KTP： HR@1064nm & HT@532nm
R>99.8%@1064nm
R<5.0%@532nm
YVO4：HR@1064&532nm,
HT@808nm
R>99.8%@1064nm
R>990%@532nm
R<5.0%@808nm
YVO4： HR@ 1064nm &
HT@808nm
R>99.8%@1064nm
R<5.0%@808nm
Nd:YVO4：AR@ 1064nm
R<0.1%@ 1064nm
BK7：HR@1064 & HT@532nm
R>99.8%@1064nm
R<5.0%@532nm
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