Efficient sensitivity analysis of photonic structures with transmission line modeling

Osman S. Ahmed; Mohamed H. Bakr; Mohamed A. Swillam; Xun Li

doi:10.1117/12.2002835

24 October 2012 Efficient sensitivity analysis of photonic structures with transmission line modeling

Osman S. Ahmed, Mohamed H. Bakr, Mohamed A. Swillam, Xun Li

Author Affiliations +

Proceedings Volume 8412, Photonics North 2012; 841213 (2012) https://doi.org/10.1117/12.2002835
Event: Photonics North 2012, 2012, Montréal, Canada

Abstract

We introduce a memory efficient approach for the reduction of the required memory storage in time domain transmission line modeling (TLM)-based adjoint variable method (AVM). The proposed approach is based on manipulating the TLM scattering matrices to remove all redundant calculations. The required memory overhead for our approach is drastically reduced to only 10% of that of the original TLM-based AVM. This represents the ultimate memory reduction preserving the same accuracy of previously reported AVM approaches. Utilizing this approach, we can conduct AVM calculations for dielectric bulk structures 10 times larger. Our algorithm has been verified by comparison to the expensive finite difference approaches.

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Osman S. Ahmed, Osman S. Ahmed, Mohamed H. Bakr, Mohamed H. Bakr, Mohamed A. Swillam, Mohamed A. Swillam, Xun Li, Xun Li, "Efficient sensitivity analysis of photonic structures with transmission line modeling", Proc. SPIE 8412, Photonics North 2012, 841213 (24 October 2012); doi: 10.1117/12.2002835; https://doi.org/10.1117/12.2002835

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