Inverse design of photonic nanostructures using dimensionality reduction: reducing the computational complexity

• DOI: 10.1364/ol.425627
• Publication Date: 2021-05-04T04:00:12Z
• Authors: Mohammadreza Zand...; Yashar Kiarashi; Michael Chen; Reid Barton; Ali Adibi
• Keywords: 02 engineering and technology; 0210 nano-technology

In this Letter, we present a deep-learning-based method using neural networks (NNs) for inverse design of photonic nanostructures. We show that by using dimensionality reduction in both the design and the response spaces, the computational complexity of the inverse design algorithm is considerably reduced. As a proof of concept, we apply this method to design multi-layer thin-film structures composed of consecutive layers of two different dielectrics and compare the results using our techniques to those using conventional NNs.