Standard Anti-Refl ection Coatings
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
TECHSPEC® Certifi ed Edmund Quality
Shop www.edmundoptics.co.uk – latest pricing – availability – new products – over 34,000 items 9
lenses
prisms and
cleaning and
optical assemblies mirrors windows diffusers filters polarizers beamsplitters
gratings
handling TECHNICAL NOTE
Standard Broadband Anti-Refl ection Coatings
Coating Description Specifi cations Damage Threshold, Reference:
λ/4 MgF2 @ 550nm Ravg ≤ 1.75% 400 - 700nm (N-BK7) 10 J/cm2 @ 532nm, 10ns
UV-AR 250 - 425nm
Rabs ≤ 1.0% 250 - 425nm
Ravg ≤ 0.75% 250 - 425nm 3 J/cm2 @ 355nm, 10ns
Ravg ≤ 0.5% 370 - 420nm
UV-VIS 250 - 700nm
Rabs ≤ 1.0% 350 - 450 nm 3 J/cm2 @ 355nm, 10ns
Ravg ≤ 1.5% 250 - 700nm 5 J/cm2 @ 532nm, 10ns
VIS-EXT 350 - 700nm Ravg < 0.5% 350 - 700nm 5 J/cm2 @ 532nm, 10ns
VIS-NIR 400 - 1000nm
Rabs ≤ 0.25% 880nm
Ravg ≤ 1.25% 400 - 870nm 5 J/cm2 @ 532nm, 10ns
Ravg ≤ 1.25% 890 - 1000nm
VIS 0° 425 - 675nm Ravg ≤ 0.4% 425 - 675nm 5 J/cm2 @ 532nm, 10ns
YAG-BBAR 500 - 1100nm
Rabs < 0.25% 532nm
R 5 J/cm2 @ 532nm, 10ns abs < 0.25% 1064nm
Ravg < 1.0% 500 - 1100nm
NIR I 600 - 1050nm Ravg ≤ 0.5% 600 - 1050nm 7 J/cm2 @ 1064nm, 10ns
NIR II 750 - 1550nm
Rabs ≤ 1.5% 750 - 800nm
Rabs ≤ 1.0% 800 - 1550nm 8 J/cm2 @ 1064nm, 10ns
Ravg ≤ 0.7% 750 - 1550nm
When light travels between media (for instance, glass and air), a portion of
the light is refl ected – a phenomenon known as Fresnel Refl ection. Typical
uncoated glass optical components will suff er approximately 8 - 10% loss
from Fresnel Refl ections (depending on the wavelength of light and the index
of refraction of the material). Adding an antirefl ection (AR) coating to
the optical component can reduce that transmission loss to 0.25% or less.
While an AR coating can signifi cantly improve the performance of an optical
system, using the coating at wavelengths outside the design wavelength
range could potentially decrease the performance of the system.
Damage Threshold, Reference specifi cations represent optics that have
had at least one laser induced damage threshold test performed on a representative
sample of parts for customer reference. For applications that
require a higher level of assurance in the published LIDT, please look for
optics containing a Damage Threshold, Certifi ed specifi cation.
λ/4 MgF2 at 550nm
VISO° (425 - 675nm)
UV-AR (250 - 425nm)
UV-VIS (250 - 700nm)
VIS-NIR (400 - 1000nm)
VIS-EXT (350 - 700nm)
0
200 300 400 500 600 700 800 900 1000 1100
Reflection (%)
Standard Visible Anti-Reflection Coatings
Wavelength (nm)
NIR I (600 - 1050nm)
NIR II (750 - 1550nm)
YAG-BBAR (500 - 1100nm)
0
400 600 800 1000 1200 1400 1600 1800
Reflection (%)
Standard Near Infrared Anti-Reflection Coatings
Wavelength (nm)
• OEM Recommended
• Certifi ed Edmund Quality
• Continual Supply
TECHSPEC® components are available throughout the catalog and are labeled
in black and gold to assist in easy identifi cation. TECHSPEC® components
are designed, specifi ed, or manufactured by Edmund Optics® and are
ideal for Industrial OEMs and researchers alike. Full technical specifi cations
are available, volume integration is supported by a generous discount structure,
and our entire sales and applications engineering staff are knowledgeable
about the products’ applications. Our objective is to off er the fi nest
quality components and systems available to meet the service requirements
and to exceed the expectations of our customers.
Available Exclusively
from Edmund Optics®
Wide Variety of IR Coatings on Silicon, Germanium,
Zinc Selenide and Chalcogenide Materials. Laser Line VCoats
on Glass and Fused Silica Substrates Available
Components
www.edmundoptics.co.uk
/www.edmundoptics.co.uk
/www.edmundoptics.co.uk