# Digital long focal length lenslet array using spatial light modulator

## TL;DR

This paper demonstrates how to simulate a long focal length lenslet array using a liquid crystal spatial light modulator, exploring its properties and operational limits for wavefront sensing applications.

## Contribution

It introduces a method to realize a digital long focal length lenslet array on an SLM, expanding the capabilities of wavefront sensing technology.

## Key findings

- Successful simulation of lenslet array on SLMs
- Analysis of transmission and reflection type SLMs
- Discussion of operational limits in wavefront sensing

## Abstract

Under a thin lens and paraxial approximation, the phase transformation function of a lens was simulated on a Liquid Crystal (LC) based Spatial Light Modulator (SLM). The properties of an array of such lenses simulated on transmitting type and reflecting type SLMs were investigated and the limits of its operation in wavefront sensing applications are discussed.

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Source: https://tomesphere.com/paper/0911.0821