Homogenizing Plate
Beam shapers, also called beam converters, control optical fields. Phase modulation, amplitude control, or geometric optical-path transformations redistribute laser intensity and wavefront phase, changing spot geometry into a target profile for processing, illumination, or inspection. A homogenizing plate is a typical beam shaper. Definition: also called a beam-homogenizing optic or laser-homogenizing diffractive optical element, it uses micro/nano phase structures and diffraction to reconstruct energy distribution. Gaussian or nonuniform multimode beams become specified uniform-energy spot shapes, homogenizing irradiance over a target. Key parameters: 3. Diffraction efficiency: 2-level binary phase, 60%–75%; 4-level phase, 80%–88%; 8-/16-level phase, at least 92%. Higher phase-level counts produce cleaner outlines and less stray light. 4. Divergence/illumination field angle determines distant spot size; with fixed focal length, greater divergence means a larger spot. 5. Spot uniformity describes flat-top intensity fluctuations, typically ±5%~±15% in the industry. The source's incomplete definitions repeat 'peak-to-valley nonuniformity of the flat-top region' twice, then refer to 'intensity at the valley of the flat-top region,' without the corresponding symbols. 6. Input beam aperture: the element must match the specified spot size; deviation outside the permitted range reduces homogenization. Working principle: randomly arranged surface microstructures divide the incident laser into many sub-beams with irregular phases and propagation directions. This random geometry eliminates coherent interference spot-array fringes from conventional periodic microlens arrays. Sub-beam intensity differences average out, while the random structure also reduces laser coherence and further suppresses interference artifacts. The result is a uniform-energy flat-top spot with clear boundaries, balancing high light utilization and adaptability. Customization/manufacturing: the company describes itself as an early Chinese optical-design/manufacturing enterprise with over twenty years in the industry, a professional technical team, and mature engineering experience. Its in-house micro/nanofabrication platform uses high-precision lithography and dry etching to manufacture diffractive homogenizers independently. Phase-relief dimensions and etch depths are controlled at submicron levels, providing excellent uniformity, high energy utilization, sharp flat-top boundaries, and stray-light suppression. Fused silica, silicon, germanium, and ZnSe substrates cover UV, visible, near IR, and far IR. Wavelength-specific antireflection coatings combine high laser-damage thresholds with resistance to high/low temperatures and aging for stability in complex environments. The company controls the full chain from GS-algorithm optical simulation and custom phase structures to mass-production inspection. It supports small university/research orders and stable high-volume industrial supply, with short lead times and rapid technical setup support. Complete solutions address laser homogenization, precision beam shaping, and uniform illumination. Precise phase surfaces, homogenization, and environmental stability are presented as reasons to trust its Chinese-made diffractive optics. Applications include UV lithographic exposure, laser annealing, cleaning, precision processing, research illumination, medical lasers, and machine-vision uniform light sources, with broad customer recognition. Contact the company for custom manufacturing and professional, efficient technical/product support. Image captions: homogenizer white-light-interferometer display; left to right, square, circular, and rectangular flat-top spots.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Design Wavelength | 193 nm UV to 10.6 μm Infrared |
| Beam Spot Shape | Circular, Square, Rectangular and Linear Flat-Top Beam Spots |
| Beam Spot Uniformity | ±5%~±15% |
| Substrate Material | Fused Silica, Silicon, Germanium, Zinc Selenide |
Applications
Datasheet
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