- Ravg <0.5%, wide wavelength range
- For broadband sources
- For multiple laser use
- For tunable lasers
- Best general-purpose AR coatings
Broadband Multilayer Antireflection Coatings markedly improve the transmission efficiency of any lens, prism, beam-splitter, or window. By reducing surface reflections over a wide wavelength range, broadband antireflection coatings improve transmission and enhance contrast. Newport has designed a series of durable multilayer coatings for nearly every application in the 245–1550 nm range. Coatings perform effectively for multiple wavelengths and tunable lasers, thereby eliminating the need for several sets of optics. Most Newport lenses are available from stock with AR.10, AR.14, AR.16, and AR.18 antireflection coatings.
Specifications
| Substrate Material |
For BK 7 and fused silica (AR.10 for fused silica only) |
| Durability |
MIL-C-675C, moderate abrasion |
| Cleaning |
Non-abrasive method, acetone or ispropyl alcohol on
lens tissue recommended (see Care and Cleaning of Optics) |
| Damage Threshold |
AR.10, 500 W/cm2,1 J/cm2 with 10 nsec pulses @ 325 nm, typical
AR.14, 1000 W/cm2, 2 J/cm2 with 10 nsec pulses @ 532 nm, typical
AR.16, 1000 W/cm2, 2 J/cm2 with 10 nsec pulses @ 1064 nm, typical
AR.18, 1000 W/cm2, 2 J/cm2 with 10 nsec pulses @ 1064 nm, typical |
Wavelength Range
(nm) |
Center Wavelength
(nm) |
Reflectivity per Surface |
Angle of Incidence |
Coating Code |
| 245–440 |
320 |
Ravg <0.5%, Rmax<1.0% |
0–15° |
AR.10 |
| 430–700 |
530 |
Ravg <0.5%, Rmax<1.5% |
0–15° |
AR.14 |
| 650–1000 |
790 |
Ravg <0.5%, Rmax <1.5% |
0–15° |
AR.16 |
| 1000–1550 |
1210 |
Ravg <0.5%, Rmax <1.5% |
0–15° |
AR.18 |