Advanced Photonics Research最新文献_第4页

Artificial Intelligence-Enhanced Metamaterial Bragg Multilayers for Radiative Cooling

IF 3.7

Advanced Photonics Research Pub Date : 2024-10-08 DOI: 10.1002/adpr.202400088

David Osuna Ruiz, Maite Aznarez-Sanado, Pilar Herrera-Plaza, Miguel Beruete

{"title":"Artificial Intelligence-Enhanced Metamaterial Bragg Multilayers for Radiative Cooling","authors":"David Osuna Ruiz, Maite Aznarez-Sanado, Pilar Herrera-Plaza, Miguel Beruete","doi":"10.1002/adpr.202400088","DOIUrl":"https://doi.org/10.1002/adpr.202400088","url":null,"abstract":"A full numerical study combining artificial intelligence (AI) methods and electromagnetic simulation software on a multilayered structure for radiative cooling (RC) is investigated. The original structure is made of SiO2/Si nanometer-thick layers that make a Bragg mirror for wavelengths in the solar irradiance window (0.3–4 μm). The structures are then optimized in terms of the calculated net cooling power and characterized via the reflected and absorbed incident light as a function of their structural parameters. This investigation provides with optimal designs of beyond-Bragg, all-dielectric, ultra-broadband mirrors that provide net cooling powers in the order of ≈100 W m−2, similar to the best-performing structures in literature. Furthermore, it explains AI's success in producing these structures and enables the analysis of resonant conditions in metal-free multilayers with unconventional layer thickness distributions, offering innovative tools for designing highly efficient structures in RC.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"6 2","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143186619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

1 × N All-Logic Optical Switch Based on Polymer Platform Using Multimode Interferometer

IF 3.7

Advanced Photonics Research Pub Date : 2024-10-08 DOI: 10.1002/adpr.202400118

Guoyan Zeng, Daming Zhang, Fei Wang, Xibin Wang, Yuexin Yin

{"title":"1 × N All-Logic Optical Switch Based on Polymer Platform Using Multimode Interferometer","authors":"Guoyan Zeng, Daming Zhang, Fei Wang, Xibin Wang, Yuexin Yin","doi":"10.1002/adpr.202400118","DOIUrl":"https://doi.org/10.1002/adpr.202400118","url":null,"abstract":"The compact and broadband optical switch with a large port count is demanded with the increasing communication capacity. In this article, a universal method for modeling the 1 × N switch using multimode interferometer (MMI) through transmission matrixes is proposed. Herein, the reasons for the narrowing of the operating bandwidth switch are analyzed. As a proof of concept, a wide bandwidth 1 × 4 switch, which has an insertion loss lower than 23.7 dB, and a cross talk better than −10 dB at 1550 nm are simulated, designed, and fabricated. The cross talk throughout the C band is lower than −8.5 dB. According to the experimental result, the 1 × 4 switch with four-equal-length modulating arms shows a 32 nm bandwidth for −10 dB cross talk which is 13 times larger than traditional switch. The switch realizes a multi-port logic optical switch by modulation. The 1 × N switch based on the generalized Mach–Zehnder interferometer (GMZI) structure reduce the footprint significantly compared with the 1 × N switch consisting of a 1 × 2 switch cascade. It is believed that 1 × N switch based on GMZI structures is a promising solution to increase integration density.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"6 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrafast Terahertz Superconductor Van der Waals Metamaterial Photonic Switch 超快太赫兹超导体范德华超材料光子开关

IF 3.7

Advanced Photonics Research Pub Date : 2024-10-07 DOI: 10.1002/adpr.202470029

Kaveh Delfanazari

引用次数: 0

Structural Colors Derived from the Combination of Core–Shell Particles with Cellulose 核壳粒子与纤维素结合产生的结构色彩

IF 3.7

Advanced Photonics Research Pub Date : 2024-10-07 DOI: 10.1002/adpr.202470027

Regina Leiner, Lukas Siegwardt, Catarina Ribeiro, Jonas Dörr, Christian Dietz, Robert W. Stark, Markus Gallei

引用次数: 0

Room-Temperature Lasing of Dual-Metal Nanoparticle Surface Lattice Resonance with Monolithic InGaAs Multiple Quantum Wells on GaAs Substrates

IF 3.7

Advanced Photonics Research Pub Date : 2024-09-30 DOI: 10.1002/adpr.202400120

Wen-Hsuan Hsieh, Chia-Jui Chang, Cheng-Ching Li, Kuo-Ping Chen, Jhih-Sheng Wu, Chia-Yen Huang, Tien-Chang Lu

引用次数: 0

A Two-Stage Polymerization Strategy for Preparing Polymer-Network Liquid Crystals with Oxygen-Sensing Property 制备具有氧传感特性的聚合物网络液晶的两阶段聚合策略

IF 3.7

Advanced Photonics Research Pub Date : 2024-09-09 DOI: 10.1002/adpr.202470026

Zongdai Liu, Zhibo Zhang, Yi Zhang, Dan Luo, Kun-Lin Yang

引用次数: 0

Progress on Coherent Perovskites Emitters: From Light-Emitting Diodes under High Current Density Operation to Laser Diodes 相干 Perovskites 发射器的研究进展：从高电流密度下的发光二极管到激光二极管

IF 3.7

Advanced Photonics Research Pub Date : 2024-09-09 DOI: 10.1002/adpr.202470024

Gayoung Lee, Yejin Jun, Hyeonji Lee, Kwangdong Roh

引用次数: 0

Relative Permittivity and Optoelectronic Performances of Halide Perovskites: Study of Combined First-Principles Simulation and Combinatorial Synthesis 卤化物包荧光体的相对导率和光电性能：第一原理模拟与组合合成的结合研究

IF 3.7

Advanced Photonics Research Pub Date : 2024-09-04 DOI: 10.1002/adpr.202400039

SangMyeong Lee, Hee Jung Kim, Young Ju Kim, Geon Woo Yoon, Oh Yeong Gong, Won Bin Kim, Hyun Suk Jung

{"title":"Relative Permittivity and Optoelectronic Performances of Halide Perovskites: Study of Combined First-Principles Simulation and Combinatorial Synthesis","authors":"SangMyeong Lee, Hee Jung Kim, Young Ju Kim, Geon Woo Yoon, Oh Yeong Gong, Won Bin Kim, Hyun Suk Jung","doi":"10.1002/adpr.202400039","DOIUrl":"https://doi.org/10.1002/adpr.202400039","url":null,"abstract":"Owing to their excellent optoelectronic properties, halide perovskites (HPs) have garnered significant attention in the field of optoelectronics. However, conventional HPs-based optoelectronic devices primarily are fabricated using solution-based processes, implying that extremely time-consuming needs to individually synthesize their composition-dependent optoelectronic properties. This study demonstrates the feasibility of combining first-principles simulations with combinatorial synthesis, comparing the effects of HP properties on optoelectronic devices using this combined approach. The first-principles simulations confirm that increasing the ratio of small halide ions increased the band gap by k·p perturbation theory and harmonic oscillator models. By fabricating HP thin films with compositional gradients using combinatorial synthesis, it is confirmed that an increase in band gap corresponds to a decrease in static relative permittivity. Furthermore, HP-based optoelectronic devices are fabricated to measure their photoelectric conversion efficiency and responsivity based on the simulated and measured relative permittivity, including time-resolved photoluminescence. The findings demonstrate the influence of the relative permittivity on device performance, elucidating the relationship between band structure and relative permittivity. Therefore, in this study, the potential of combining first-principles simulations with combinatorial synthesis is confirmed by comparing the relative permittivity characteristics of optoelectronics developed using this combined approach.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Power GaN-Based Blue Laser Diodes Degradation Investigation and Anti-aging Solution 大功率氮化镓基蓝色激光二极管的降解研究与抗老化解决方案

IF 3.7

Advanced Photonics Research Pub Date : 2024-09-04 DOI: 10.1002/adpr.202400119

Enming Zhang, Yue Zeng, Wenyu Kang, Zhibai Zhong, Yushou Wang, Tongwei Yan, Shaohua Huang, Zhongying Zhang, Kechuang Lin, Junyong Kang

{"title":"High-Power GaN-Based Blue Laser Diodes Degradation Investigation and Anti-aging Solution","authors":"Enming Zhang, Yue Zeng, Wenyu Kang, Zhibai Zhong, Yushou Wang, Tongwei Yan, Shaohua Huang, Zhongying Zhang, Kechuang Lin, Junyong Kang","doi":"10.1002/adpr.202400119","DOIUrl":"https://doi.org/10.1002/adpr.202400119","url":null,"abstract":"Gallium nitride (GaN)-based semiconductor laser diodes (LDs) have garnered significant attention due to their promising applications. However, high-power LDs face serious degradation issues that limit their practical use. This study investigates the degradation factors of 437 nm and 6.3 W LDs by comparing light–current–voltage (L–I–V) characteristics, transmission electron microscopy (TEM), cathodoluminescence (CL), and secondary ion mass spectroscopy (SIMS) before and after 1000-h aging. The diffusion of mirror coating from the resonant cavity surface is identified as a key factor contributing to high-power LD degradation, which has not been reported in milliwatt-level LDs. Meanwhile, the mechanisms behind the LD degradation are profiled and summarized together with the diffusion and other factors. On basis of the mechanism exploration, an anti-aging technology for high-power GaN-based LDs is developed by using aluminum nitride for passivation layer and sapphire materials for mirror film. This anti-aging technology has been verified, and a nearly ten-time degradation suppression is achieved from 1000 h. This study elucidates the degradation mechanisms of high-power GaN LDs and provides an effective technology to extend their lifespan, thereby prompting the practical applications of high-power LDs.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maximizing the Electromagnetic Efficiency of Spintronic Terahertz Emitters 最大化自旋电子太赫兹发射器的电磁效率

IF 3.7

Advanced Photonics Research Pub Date : 2024-09-04 DOI: 10.1002/adpr.202400064

Pierre Koleják, Geoffrey Lezier, Daniel Vala, Baptiste Mathmann, Lukáš Halagačka, Zuzana Gelnárová, Yannick Dusch, Jean-François Lampin, Nicolas Tiercelin, Kamil Postava, Mathias Vanwolleghem

{"title":"Maximizing the Electromagnetic Efficiency of Spintronic Terahertz Emitters","authors":"Pierre Koleják, Geoffrey Lezier, Daniel Vala, Baptiste Mathmann, Lukáš Halagačka, Zuzana Gelnárová, Yannick Dusch, Jean-François Lampin, Nicolas Tiercelin, Kamil Postava, Mathias Vanwolleghem","doi":"10.1002/adpr.202400064","DOIUrl":"https://doi.org/10.1002/adpr.202400064","url":null,"abstract":"\u0000Optically pumped spintronic terahertz emitters (STEs) have, in less than a decade, strongly impacted terahertz (THz) source technology, by the combination of their Fourier-limited ultrafast response, their phononless emission spectrum and their wavelength-independent operation. However, the intrinsic strength of the inverse spin Hall effect governing these devices introduces a challenge: the optical-to-terahertz conversion efficiency is considerably lower than traditional sources. It is therefore primordial to maximize at least their electromagnetic efficiency independently of the spin dynamics at play. Using a rigorous time-domain treatment of the electromagnetic generation and extraction processes, an optimized design is presented and experimentally confirmed. With respect to the strongest reported spintronic THz emitters it achieves a 250% enhancement of the emitted THz field and therefore an 8 dB increase of emitted power. This experimental achievement brings STE close to the symbolic barrier of mW levels. The design strategy is generically applicable to any kind of ultrafast spin-to-charge conversion (S2C) system. On a broader level, our work highlights how a rigorous handling of the purely electromagnetic aspects of THz spintronic devices can uncover overlooked aspects of their operation and lead to substantial improvements.","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202400064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0