Local full-wave methods for accurate modelling of large area meta-surfaces

B. Robben; C. Beckerleg; L. Penninck

doi:10.1117/12.3016538

17 June 2024 Local full-wave methods for accurate modelling of large area meta-surfaces

B. Robben, C. Beckerleg, L. Penninck

Proceedings Volume 13023, Computational Optics 2024; 1302306 (2024) https://doi.org/10.1117/12.3016538
Event: SPIE Optical Systems Design, 2024, Strasbourg, France

Abstract

Designing large-area meta-surfaces is a daunting numerical task. The sub-wavelength size of the individual meta-atoms requires a full-wave solver for Maxwell’s equations. Practical meta-surfaces need to have an active area on the order of 1 mm² or above. These sizes are orders of magnitude larger than what is feasible using known full-wave algorithms both in available memory and time requirements. Traditionally, approximations are made to design meta-surfaces of mm² size and above. Recently large area meta-surface fabrication has been shown. With this capability, the demand for large area meta-surface design (>1000 λ) continues to increase. In this paper we present overlapping domain analysis (ODA) as a novel approach to model large area meta-surfaces with higher accuracy than the local periodic approximation (LPA) but capable of larger areas than rigorous full-wave calculations. We compare the effect of the approximation chosen on the simulated performance of the lens for various numerical apertures.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

B. Robben, C. Beckerleg, and L. Penninck "Local full-wave methods for accurate modelling of large area meta-surfaces", Proc. SPIE 13023, Computational Optics 2024, 1302306 (17 June 2024); https://doi.org/10.1117/12.3016538

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available