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Collimating an Extended LED Source with a Wavefront Phase Modifier

Feature Demo

Collimating an Extended LED Source with a Wavefront Phase Modifier

Abstract

This feature demo shows how a wavefront phase modifier can be used to collimate an extended LED source. Since spatially shifted modes originate from different source positions, the same collimating phase function directs them at slightly different angles, resulting in residual angular spread and limiting the achievable collimation.

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Further Readings

Two-Step Design - Part 1: WPM Phase Synthesis - Beam Expander Example

Two-Step Design - Part 1: WPM Phase Synthesis - Beam Expander Example

Wavefront Phase Modifier Twins enable wavefront re-collimation after a plano-concave lens by applying a tailored phase correction ...
Two-Step Design - Part 2: Metasurface Design - Beam Expander Example

Two-Step Design - Part 2: Metasurface Design - Beam Expander Example

From a desired wavefront Phase to a real metalens structure. This feature demo illustrates this transition using a beam expander system.
Two-Step Design - Part 1: WPM Phase Synthesis - Off-Axis Focusing Example

Two-Step Design - Part 1: WPM Phase Synthesis - Off-Axis Focusing Example

Use the Wavefront Phase Modifier Twin to model and correct off-axis focusing effects on reflective conical surfaces, enabling accurate wavefront control...