Focused-beam interaction with a phase step
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Updated: Jun 20, 2026

08:39
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Optics Letters
|September 24, 2009
Abstract:
The interaction of a tightly focused laser beam with a step function is encountered in optical storage media, scanning microscopy, positioning and aligning systems, and various other applications. A theoretical and experimental investigation provides an improved description of the physical process and indicates the possibility of achieving extreme superresolution suitable for certain applications.
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