INDUSTRY COMPONENT

Grating Surface

Precision-engineered surface with periodic structures for light diffraction and spectral analysis in optical systems.

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Component Specifications

Definition
A grating surface is a critical optical component featuring a precisely patterned array of parallel grooves or lines on a substrate, designed to diffract incident light into multiple beams at specific angles determined by the grating equation. This component enables wavelength separation, spectral analysis, and beam steering in applications ranging from spectroscopy to laser systems.
Working Principle
Operates on the principle of diffraction: when light strikes the periodic structure, it interferes constructively at angles satisfying nλ = d(sinθ_i + sinθ_m), where n is the diffraction order, λ is wavelength, d is groove spacing, θ_i is incidence angle, and θ_m is diffraction angle. This disperses light into its constituent wavelengths.
Materials
Typically made from fused silica, borosilicate glass, or metal substrates (e.g., aluminum, gold) with coatings like aluminum or dielectric layers to enhance reflectivity. Grooves are formed via mechanical ruling, holographic exposure, or etching processes.
Technical Parameters
  • Dimensions Custom (e.g., 25x25 mm to 100x100 mm)
  • Blaze Angle Customizable (e.g., 5°-30°)
  • Groove Density 300-2400 lines/mm
  • Surface Flatness λ/10 at 632.8 nm
  • Coating Reflectivity >85% in specified range
Standards
ISO 10110, ISO 14999, DIN 3140

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Grating Surface.

diffraction grating optical grating spectral analysis groove density blaze angle fused silica grating holographic grating spectroscopy component Grating Surface Grating Surface in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Diffraction Grating

An optical component with a periodic structure that splits and diffracts light into several beams traveling in different directions.

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Engineering Analysis

Risks & Mitigation
  • Surface contamination reducing efficiency
  • Mechanical damage to grooves
  • Thermal expansion affecting alignment
  • Coating degradation over time
FMEA Triads
Trigger: Improper handling during installation
Failure: Scratches or contamination on grating surface
Mitigation: Use cleanroom protocols, protective covers, and trained personnel for handling and mounting.
Trigger: Environmental exposure to humidity or chemicals
Failure: Coating corrosion or substrate degradation
Mitigation: Apply protective coatings, control storage conditions, and use sealed enclosures in operation.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Groove spacing tolerance ±0.5%, angular accuracy ±0.1°
Test Method
Interferometry for surface flatness, spectrophotometry for efficiency, and microscopy for groove inspection per ISO 10110.

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between ruled and holographic grating surfaces?

Ruled gratings are mechanically engraved, offering high efficiency at specific blaze angles, while holographic gratings are created via interference patterns, providing lower stray light and better uniformity for broad spectral applications.

How does groove density affect grating performance?

Higher groove density increases angular dispersion and resolution but reduces free spectral range; selection depends on the required wavelength coverage and spectral resolution in the application.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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