SoftwareApplication
name: Div_beam_DMI
description: Data and code underlying the publication: Increasing Angle Acceptance of Displacement Measuring Interferometers By Means of a Diverging Laser Beam.
description: This dataset contains a Gaussian beam model developed for designing and validating a test setup for the publication: “Increasing Angle Acceptance in Displacement Measuring Interferometers by Means of a Diverging Laser Beam”. In addition, the dataset includes experimental measurement data and signal processing code used to quantify the performance of the test setup. The project was conducted at the Eindhoven University of Technology for the the MSc project of Lowe Blom as part of Kevin Looman’s PhD research on increased angle acceptance in displacement measuring interferometers. Objective: Design an angle robust displacement measuring interferometer. Type of research: Conceptual work on design principles for an angle robust diverging beam interferometer. Modelling of a Gaussian Beam propagation model to theoretically validate the working principle and design and quantification of a demonstrator. Method of data collection: The target mirror is placed at discrete distances and rotations within the measurement stroke of the interferometer. The target mirror is then displaced at a constant velocity for 2 wavelengths and the resulting voltage produced by the interference pattern on a photodiode is measured and used for quantification of the demonstrator. Data type: Matlab code and data files (.m and .mat) Data collection period: February 2024 – December 2025 Software used: MATLAB R2023b and R2025b
code repository: https://data.4tu.nl/v3/datasets/90240567-11d5-4623-8c91-a8e4a4815506.git
author: https://orcid.org/0009-0005-9205-1079
author: https://orcid.org/0009-0001-2630-1480
keywords: Stage metrology
keywords: Diverging laser beam
keywords: Elliptical Gaussian beam model
keywords: Increased angle acceptance
keywords: Interferometry
programming language: Markdown
programming language: Matlab
programming language: Other
license:
  creative work: creativeWork
    name: CC-BY-NC-4.0

https://orcid.org/0009-0005-9205-1079
type: Person
given name: Lowe
family name: Blom
name: Lowe Blom

https://orcid.org/0009-0001-2630-1480
type: Person
given name: Kevin
family name: Looman
name: Kevin Looman