Design, Simulation, Manufacturing and Characterization of a tunable Beam Steering device based on Liquid Crystals

Vera Andreu, Sergio (2021). Design, Simulation, Manufacturing and Characterization of a tunable Beam Steering device based on Liquid Crystals. Proyecto Fin de Carrera / Trabajo Fin de Grado, E.T.S.I. Telecomunicación (UPM).

Description

Title: Design, Simulation, Manufacturing and Characterization of a tunable Beam Steering device based on Liquid Crystals
Author/s:
  • Vera Andreu, Sergio
Contributor/s:
  • Geday, Morten Andreas
  • García de Blas, Mario
Item Type: Final Project
Masters title: Ingeniería de Telecomunicación
Date: 2021
Subjects:
Freetext Keywords: LC-OPA, Beam Steering, Liquid Crystal, Free Space Communications, Blaze Grating, Direct Laser Writing
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this project a new high performing 2D beam deflector with no movable parts will be developed. The device will be composed by two cascaded liquid crystal cells, each one steering the beam in one dimension. The active area of the device will be 1.08x1.08 mm². The cells will be composed by 144 electrodes with 7.5 µm pitch width, driven by a custom made 12-bit Pulse Width Modulation (PWM) electronical driver. Direct Laser Writing (DLW) techniques will be employed to obtain high-resolution structures, with a high fill factor, in glass wafers coated with Indium-Tin Oxide (ITO). A 144x144 efficiency map will be presented, for a maximum diagonal steering angle of ±3,42°. The results will be accompanied by a simulation based on Fresnel and Fraunhofer diffraction approximation.

More information

Item ID: 69082
DC Identifier: https://oa.upm.es/69082/
OAI Identifier: oai:oa.upm.es:69082
Deposited by: Sergio Vera Andreu
Deposited on: 18 Nov 2021 12:09
Last Modified: 09 Jan 2022 18:06
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