Sales Engineer: Grace Gao

Email: grace@rsnv.cn

WhatsApp: +86 199 2997 5286

RSNV A Microlens Array consists of multiple microscopic lenses arranged in square, hexagonal, or linear patterns on a single substrate. MLAs are used to homogenize laser beams by dividing the incoming beam into multiple beamlets and recombining them to create a uniform intensity profile.This coating design supports the fundamental wavelength of Nd:YAG lasers (1064nm), its second harmonic (532nm), and common visible alignment beams (650nm). The <0.1% reflectivity at all three wavelengths ensures minimal loss regardless of which wavelength your system uses.

1. Ultra-Low Reflection Across Three Key Wavelengths

Features a broadband anti-reflection coating achieving <0.1% reflectivity at 1064nm, 532nm, and 650nm. This ensures maximum transmission efficiency for Nd:YAG lasers (fundamental and harmonic wavelengths) while enabling visible alignment beam compatibility.

2. Superior Beam Homogenization Performance

The MLA transforms a Gaussian laser beam into a uniform top-hat intensity profile with >98% fill factor. Ideal for laser material processing, medical aesthetics, and flat-field illumination where consistent energy distribution is critical.

Parameter	Specification
Product Name	Broadband AR Coated Microlens Array
Material	K9 Optical Glass / Fused Silica
Outer Diameter	Φ16.0 mm / Φ20.0 mm
Wavelength Range	450-1100 nm (AR optimized)
Reflectivity @1064nm	R < 0.1%
Reflectivity @532nm	R < 0.1%
Reflectivity @650nm	R < 0.1%
Angle of Incidence	0° ± 5°
Fill Factor	> 98%
Lenslet Arrangement	Square / Hexagonal / Linear
Lenslet Pitch	15 µm – 4 mm
Focal Length	0.15 mm – 300 mm
Surface Quality	40-20 Scratch-Dig
Surface Roughness	< 5 nm RMS
Laser Damage Threshold	> 20 J/cm² @ 1064nm, 10 ns pulse
Clear Aperture	> 90%

3. Premium Substrate Materials

Manufactured from K9 optical glass for cost-effective industrial integration or fused silica for high-power and UV-extended applications. Fused silica offers low thermal expansion and high laser-induced damage threshold >20 J/cm².

4. Customizable Design Parameters

Available in standard diameters of Φ16 mm and Φ20 mm with full customization for:

• Lenslet pitch (10 µm to 3000 µm)

• Focal length and radius of curvature

• Square, hexagonal, or circular lenslet arrangements

• Substrate material and coating wavelengths

Sales Engineer: Grace Gao

Email: grace@rsnv.cn

WhatsApp: +86 199 2997 5286

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