Revisiting optical scattering with machine learning (SPARKLE)
Lead Research Organisation:
Loughborough University
Department Name: Wolfson Sch of Mech, Elec & Manufac Eng
Abstract
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Organisations
Publications
Coupland JM
(2019)
A new approach to vector scattering: the 3s boundary source method.
in Optics express
De Groot P
(2021)
Modeling of coherence scanning interferometry using classical Fourier optics
in Optical Engineering
Su R
(2021)
Scattering and three-dimensional imaging in surface topography measuring interference microscopy.
in Journal of the Optical Society of America. A, Optics, image science, and vision
Su R
(2020)
Lens aberration compensation in interference microscopy
in Optics and Lasers in Engineering
Thomas M
(2020)
Modeling of interference microscopy beyond the linear regime
in Optical Engineering
Thomas M
(2021)
Surface measuring coherence scanning interferometry beyond the specular reflection limit.
in Optics express
| Description | We have considered the classic problem of electromagnetic scattering from the interface between two or more homogenous media. We have revisited the basic concept of Huygen's-Fresnel diffraction in 2D and 3D and have developed code to provide a rigorous solution to vector scattering. The boundary source method that we have developed (3sBSM) represents the reflected and transmitted fields as an expansion of the electric fields generated by a basis of orthogonal electric and magnetic dipole sources that are tangential to, and evenly distributed over the surface of interest. The dipole moments required to generate these fields are then calculated according to the extinction theorem of Ewald and Oseen applied at control points situated at either side of the boundary. |
| Exploitation Route | The code is intended to be used as part of an AI systems approach to in-process control in additive manufacturing. We have passed our 2D computer code (MATLAB) to our project partners at Nottingham University and they have shown that the basic concept is sound and they have proved the basic AI technique in practice. A detailed comparison of different scattering methods has been published and results have been disseminated at SPIE Photonics Europe, 2020 (Online Only) |
| Sectors | Aerospace Defence and Marine Digital/Communication/Information Technologies (including Software) Manufacturing including Industrial Biotechology |
| URL | https://doi.org/10.1364/OE.27.030380 |
| Description | Our research findings have been shared extensively with Zygo Corp. Connecticut USA with a view to improving the fidelity of next generation optical surface measuring instruments.. |
| Description | Invited talk at MetMap (Sheffield AMRC 2019) |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Industry/Business |
| Results and Impact | This was a mixed group of industrialists/academics |
| Year(s) Of Engagement Activity | 2019 |
| URL | https://www.nottingham.ac.uk/conference/fac-eng/metmap-2019 |