What is a Top Hat Beam Profile?

A top hat laser beam is a laser beam whose intensity profile is flat and uniform, with sharp edges where the energy drops rapidly to zero.

Design of a Refractive Beam Shaper to Generate a Circular Top-Hat - SHANGHAI INFOCROPS SCIENCE & TECHNOLOGY CO., LIMITED

Enhancing laser thin-film ablation

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Flat-Field Super-Resolution Localization Microscopy with a Low-Cost Refractive Beam-Shaping Element

Top Hat Laser beam explained - Holo Or

Laser drilling with a top-hat beam of micro-scale high aspect ratio holes in silicon nitride - ScienceDirect

Why Use a Flat Top Laser Beam?

News - Holo Or, Diffractive Optics

Diffractive Optical Elements

What is a Top Hat Beam Profile?