Nanophotonic devices based on optimization algorithms

Lu, Cuicui; Yuan, Hongyi; Zhang, Nianen

doi:10.1016/b978-0-323-85796-3.00004-4

Cited by 2 publications

(3 citation statements)

References 99 publications

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“…Below, we simply introduce several typical algorithms used for the design of nanophotonic routing devices and make a comparison among our method and these algorithms. There are various related algorithms that have been proposed in recent years [ 12 , 14 , 15 ]. The genetic algorithm (GA) is a commonly used method to design nanophotonic devices.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, algorithms have been introduced in the design of nanophotonic structures, which provide an efficient method for realizing nanophotonic devices with good properties [ 12 , 13 , 14 , 15 ]. Devices optimized with algorithms usually have both compact footprints and good performances.…”

Section: Introductionmentioning

confidence: 99%

“…The applied algorithms can be divided into different categories, including heuristic algorithms such as genetic algorithms [ 16 , 20 ], gradient-based algorithms such as topology optimization [ 31 ], and artificial intelligence such as neural networks [ 24 ]. These algorithms deal with the design problem by directly searching the optimal results in the parameter space or predicting the parameters of the wanted target, which is more efficient than the traditional strategy of trial and error [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

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A Multi-Channel Frequency Router Based on an Optimization Algorithm and Dispersion Engineering

Yuan

Zhang

et al. 2023

Nanomaterials

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Integrated frequency routers, which can guide light with different frequencies to different output ports, are an important kind of nanophotonic device. However, frequency routers with both a compact size and multiple channels are difficult to realize, which limits the application of these frequency routers in nanophotonics. Here, a kind of bandgap optimization algorithm, which consists of the finite element method and topology optimization, is proposed to design a multi-channel frequency router. Channels supporting photonic edge states with different frequencies are built through the synthetic dimension of translational deformation. Due to the help of the developed optimization algorithms, the number of channels and output ports can be increased up to nine while maintaining ultracompact device size. The device operates within a working band of 0.585–0.665 c/a, corresponding to 1.504–1.709 μm when the lattice constant is set as 1 μm, covering the telecom wavelength of 1.55 μm. The average crosstalk is about −11.49 dB. The average extinction ratio is around 16.18 dB. Because the bus of the device can be regarded as a part of a topological rainbow, the results show that the structure is robust to fabrication errors. This method is general, which can be used for different materials and different frequency ranges. The all-dielectric planar configuration of our router is compact, robust, and easy to integrate, providing a new method for on-chip multi-channel broadband information processing.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Multi-Channel Frequency Router Based on an Optimization Algorithm and Dispersion Engineering

Yuan

Zhang

et al. 2023

Nanomaterials

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Solubility of lumiracoxib in supercritical carbon dioxide

Albadran,

Abbood,

Al-Mayyahi

et al. 2024

Sci Rep

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This study aims to use a static-based solubility method for measuring the solubility of lumiracoxib at a temperature of 308–338 K and pressure of 120–400 bar for the first time. The obtained solubility data for lumiracoxib is between 4.74 × 10−5 and 3.46 × 10−4 (mole fraction) for the studied ranges of pressure and temperature. The solubility values reveal that the lumiracoxib experiences a crossover pressure of about 160 bar. Moreover, the measured solubility data of these two drugs are correlated with density-based semi-empirical correlations namely Bartle et al., Mendez-Santiago-Teja, Kumar and Johnstone, Chrastil and modified Chrastil models with an average absolute relative deviation of 10.7%, 9.5%, 9.8%, 7.8%, and 8.7% respectively for lumiracoxib. According to these findings, it is obvious that all of the examined models are rather accurate and there is no superiority between these models for both examined drugs although the Chrastil model is slightly better in the overall view.

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Nanophotonic devices based on optimization algorithms

Cited by 2 publications

References 99 publications

A Multi-Channel Frequency Router Based on an Optimization Algorithm and Dispersion Engineering

A Multi-Channel Frequency Router Based on an Optimization Algorithm and Dispersion Engineering

Solubility of lumiracoxib in supercritical carbon dioxide

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