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Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

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Published on: May 29, 2018

Active optics for high-dynamic variable curvature mirrors.

Emmanuel Hugot¹, Marc Ferrari, Gérard R Lemaitre

¹Laboratoire d'Astrophysique de Marseille, Université de Provence Aix-Marseille I, CNRS/INSU 38, rue F. Joliot Curie, 13388 Marseille Cedex 13, France. emmanuel.hugot@oamp.fr

|October 2, 2009

Summary

This summary is machine-generated.

Large-amplitude variable curvature mirrors were designed using finite element analysis. The study achieved 800 µm sag with excellent optical quality, highlighting geometric nonlinearity and plasticity effects.

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Area of Science:

Optical Engineering
Mechanical Engineering
Materials Science

Background:

Designing large-amplitude variable curvature mirrors presents significant challenges.
Understanding nonlinear effects is crucial for achieving desired optical performance.

Purpose of the Study:

To design large-amplitude variable curvature mirrors.
To analyze the impact of geometric nonlinearity and plasticity on mirror performance.
To achieve a specific sag depth with high optical quality.

Main Methods:

Finite element analysis (FEA) was employed for mirror design and simulation.
Geometrical nonlinearity and plasticity effects were incorporated into the models.
Optical quality was assessed over a defined clear aperture.

Main Results:

Mirrors with at least 800 µm sag were successfully designed.
Optical quality better than lambda/5 was achieved over a 120 mm clear aperture.
The influence of geometrical nonlinearity and plasticity was quantified.

Conclusions:

Finite element analysis is effective for designing large-amplitude variable curvature mirrors.
Nonlinear effects significantly influence the performance of deformable mirrors.
The design methodology enables the creation of high-performance optical components.