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Ultrafast Simulation and Optimization of Nanophotonic Devices with Integral Equation Methods

Sideris, Constantine and Garza, Emmanuel and Bruno, Oscar (2019) Ultrafast Simulation and Optimization of Nanophotonic Devices with Integral Equation Methods. ACS Photonics, 6 (12). pp. 3233-3240. ISSN 2330-4022. https://resolver.caltech.edu/CaltechAUTHORS:20191120-075203260

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Abstract

Integrated photonics is poised to become a billion-dollar industry due to its vast array of applications. However, designing and modeling photonic devices remains challenging due to the lack of analytical solutions and difficulties with numerical simulation. Recently, inverse design has emerged as a promising approach for designing photonic devices; however, the current implementations require major computational effort due to their use of inefficient electromagnetic solvers based on finite-difference methods. Here we report a new, highly efficient method for simulating devices based on boundary integral equations that is orders of magnitude faster and more accurate than existing solvers, almost achieves spectral convergence, and is free from numerical dispersion. We develop an optimization framework using our solver based on the adjoint method to design new, ready-to-fabricate devices in just minutes on a single-core laptop. As a demonstration, we optimize three different devices: a nonadiabatic waveguide taper, a 1:2 1550 nm power splitter, and a vertical-incidence grating coupler.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acsphotonics.9b01137DOIArticle
ORCID:
AuthorORCID
Sideris, Constantine0000-0002-3042-4889
Bruno, Oscar0000-0001-8369-3014
Alternate Title:Ultra-Fast Simulation and Optimization of Nanophotonic Devices with Integral Equation Methods
Additional Information:© 2019 American Chemical Society. Received: August 7, 2019; Published: November 19, 2019. We gratefully acknowledge support by AFOSR, NSF, and DARPA through, respectively, contracts FA9550-15-1-0043, DMS-1714169, and HR00111720035 as well as by the NSSEFF Vannevar Bush Fellowship under contract number N00014-16-1-2808. We also acknowledge support by the NSF under grant no. 1849965. The authors declare no competing financial interest.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-15-1-0043
NSFDMS-1714169
Defense Advanced Research Projects Agency (DARPA)HR00111720035
National Security Science and Engineering Faculty FellowshipN00014-16-1-2808
NSF1849965
Vannever Bush Faculty FellowshipUNSPECIFIED
Subject Keywords:inverse design, nanophotonic devices, fast Maxwell simulation/optimization, integral equations, high-order accuracy, computational electromagnetics
Issue or Number:12
Record Number:CaltechAUTHORS:20191120-075203260
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191120-075203260
Official Citation:Ultrafast Simulation and Optimization of Nanophotonic Devices with Integral Equation Methods. Constantine Sideris, Emmanuel Garza, and Oscar P. Bruno. ACS Photonics 2019 6 (12), 3233-3240. DOI: 10.1021/acsphotonics.9b01137
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99941
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Nov 2019 19:33
Last Modified:08 Jan 2020 17:29

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