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APPLICATION NOTES

Practical Optical Engineering Guides

Written by optical engineers for engineers. Real-world decisions about material selection, coating specs, surface quality, and system design.

Laser OpticsCoatingsAR Coating

How to Specify AR Coatings for Multi-Wavelength Laser Systems

A practical guide to specifying anti-reflection coatings for multi-wavelength laser systems. Covers coating design, material selection, damage thresholds, and verification.

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MaterialsWindowsHarsh Environment

Optical Window Material Selection for Harsh Environments

Engineering guide for selecting window materials for extreme temperatures, chemical exposure, high pressure, vacuum, and abrasion. Covers sapphire, ZnSe, CaF2, fused silica.

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QualitySurface FinishScratch-Dig

Surface Quality Specifications: Understanding Scratch-Dig and Beyond

Complete guide to optical surface quality — from MIL-PRF-13830B scratch-dig to ISO 10110-7. Learn to specify the right quality without over-specifying cost.

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Beam ExpandersLaser OpticsUV

Beam Expander Design Considerations for UV/VIS/NIR Applications

Engineering considerations for beam expander systems across UV, visible, and near-IR. Covers Galilean vs Keplerian designs, materials, coatings, and alignment.

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VacuumCleanroomSemiconductor

Selecting Optical Components for High-Vacuum and Cleanroom Environments

Guide to specifying optics for vacuum chambers, cleanrooms, and controlled environments. Covers outgassing, bake-out compatibility, and contamination control.

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