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Third-harmonic generation and imaging with resonant Si membrane metasurface

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光电进展(英文) 2023年第8期6卷 18-27页

作者： Ze Zheng Lei Xu Lujun Huang Daria Smirnova Khosro Zangeneh Kamali Arman Yousefi Fu Deng rocio camacho-morales Cuifeng Ying Andrey E.Miroshnichenko Dragomir N.Neshev Mohsen Rahmani Advanced Optics and Photonics Laboratory Department of EngineeringSchool of Science&TechnologyNottingham Trent UniversityNottingham NG118NSUK School of Engineering and Information Technology University of New South WalesCanberra ACT 2600Australia School of Physics and Electronic Science East China Normal UniversityShanghai 200241China ARC Centre of Excellence for Transformative Meta-Optical Systems(TMOS) Research School of PhysicsAustralian National UniversityCanberra ACT 2601Australia Department of Physics Hong Kong University of Science and TechnologyKowloonHong Kong SAR 999077China

Dielectric metasurfaces play an increasingly important role in enhancing optical nonlinear generations owing to their ability to support strong light-matter interactions based on Mie-type multipolar *** to metasurfaces composed of the periodic arrangement of nanoparticles,inverse,so-called,membrane metasurfaces offer unique possibilities for supporting multipolar resonances,while maintaining small unit cell size,large mode volume and high field enhancement for enhancing nonlinear frequency ***,we theoretically and experimentally investigate the formation of bound states in the continuum(BICs)from silicon dimer-hole membrane *** demonstrate that our BIC-formed resonance features a strong and tailorable electric near-field confinement inside the silicon membrane ***,we show that by tuning the gap between the holes,one can open a leaky channel to transform these regular BICs into quasi-BICs,which can be excited directly under normal plane wave *** prove the capabilities of such metasurfaces,we demonstrate the conversion of an infrared image to the visible range,based on the Third-harmonic generation(THG)process with the resonant membrane *** results suggest a new paradigm for realising efficient nonlinear photonics metadevices and hold promise for extending the applications of nonlinear structuring surfaces to new types of all-optical near-infrared imaging technologies.

关键词： nonlinear imaging third-harmonic generation bound states in the continuum membrane metasurfaces

Infrared upconversion imaging in nonlinear metasurfaces

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Advanced Photonics 2021年第3期3卷 83-92页

作者： rocio camacho-morales Davide Rocco Lei Xu Valerio Flavio Gili Nikolay Dimitrov Lyubomir Stoyanov Zhonghua Ma Andrei Komar Mykhaylo Lysevych Fouad Karouta Alexander Dreischuh Hark Hoe Tan Giuseppe Leo Costantino De Angelis Chennupati Jagadish Andrey E.Miroshnichenko Mohsen Rahmani Dragomir N.Neshev The Australian National University Research School of PhysicsARC Centre of Excellence for Transformative Meta-Optical SystemsDepartment of Electronic Materials EngineeringCanberraACTAustralia University of Brescia Department of Information EngineeringBresciaItaly University of New South Wales School of Engineering and Information TechnologyCanberraACTAustralia Nottingham Trent University School of Science and TechnologyAdvanced Optics and Photonics LaboratoryDepartment of EngineeringNottinghamUnited Kingdom UniversitéParis Diderot Matériaux et Phénomènes QuantiquesParisFrance Friedrich Schiller University Jena Institute of Applied PhysicsAbbe Center of PhotonicsJenaGermany Sofia University Department of Quantum ElectronicsFaculty of PhysicsSofiaBulgaria

Infrared imaging is a crucial technique in a multitude of applications,including night vision,autonomous vehicle navigation,optical tomography,and food quality *** infrared imaging technologies,however,require the use of materials such as narrow bandgap semiconductors,which are sensitive to thermal noise and often require cryogenic *** demonstrate a compact all-optical alternative to perform infrared imaging in a metasurface composed of GaAs semiconductor nanoantennas,using a nonlinear wave-mixing *** experimentally show the upconversion of short-wave infrared wavelengths via the coherent parametric process of sum-frequency *** this process,an infrared image of a target is mixed inside the metasurface with a strong pump beam,translating the image from the infrared to the visible in a nanoscale ultrathin imaging *** results open up new opportunities for the development of compact infrared imaging devices with applications in infrared vision and life sciences.

关键词： metasurfaces nonlinear optical processes infrared photonics imaging.

The potential of starch-chitosan blends with poloxamer for the preparation of microparticles by spray-drying

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Particuology 2024年第6期89卷 1-10页

作者： Juan Enrique Barranco-García Carolina Caicedo Enrique Javier Jiménez-Regalado Carlos Espinoza-González Graciela morales rocio Yaneli Aguirre-Loredo Abril Fonseca-García Tecnológico Nacional de México/Instituto Tecnológico de Oaxaca Departamento de Química y BioquímicaAvenida Ing.Víctor Bravo Ahuja No.125Esquina Calzada Tecnológico68030OaxacaMexico Faculty of Engineering Unidad Central del Valle del Cauca(UCEVA)Carrera 17a 48-144763022TuluáColombia Centro de Investigación en Química Aplicada(CIQA) Blvd.Enrique Reyna Hermosillo 14025294SaltilloCoahuilaMexico Investigadoras por México CONAHCYT-CIQA Av.Insurgentes Sur 1562Col.Crédito Constructor03940Alcaldía Benito JuárezCDMXMexico

Using biopolymers as wall materials in spray drying poses challenges,particularly in attaining flowability and thermal stability among their physicochemical *** paper addresses these challenges by preparing microparticles using a blend of starch–chitosan and a poloxamer,commercially named Pluronic®*** aimed to elucidate the effects of varying poloxamer concentrations on the resulting particles through the spray drying *** with a poloxamer concentration of 3%(w/v)demonstrated a notably higher yield,especially when compared to those with 0%and 1%*** with 3%and 5%(w/v)poloxamer displayed a narrower particle size distribution,with the 3%blend showing a superior yield attributed to arrangements of blend components that improve flowability.X-ray diffraction analysis showcased the characteristic peaks of A-type starch form,with shifts suggesting enhanced interactions between *** with increased poloxamer content showed elevated thermal degradation temperatures,with the 3%blend registering a significant rise,opening avenues for encapsulating heat-sensitive *** study primarily focuses on the preparation and basic characterization of *** underscores the potential of blends with optimal poloxamer concentrations in microencapsulation,emphasizing further research to harness their capabilities thoroughly.

关键词： Biopolymer Starch Chitosan Pluronic®F127 Microparticles Spray drying

Boosting third-harmonic generation by a mirror-enhanced anapole resonator

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Light(Science & Applications) 2018年第1期7卷 661-668页

作者： Lei Xu Mohsen Rahmani Khosro Zangeneh Kamali Aristeidis Lamprianidis Lavinia Ghirardini Jürgen Sautter rocio camacho-morales Haitao Chen Matthew Parry Isabelle Staude Guoquan Zhang Dragomir Neshev Andrey E.Miroshnichenko School of Engineering and Information Technology University of New South WalesCanberraACT 2600Australia Nonlinear Physics Centre The Australian National UniversityCanberraACT 2601Australia Department of Physics Politecnico di MilanoPiazza Leonardo Da Vinci 3220133 MilanItaly Institute of Applied Physics Abbe Center of PhotonicsFriedrich Schiller University JenaAlbert-Einstein-Str.1507745 JenaGermany The MOE Key Laboratory of Weak Light Nonlinear Photonics School of Physics and TEDA Applied Physics InstituteNankai UniversityTianjin 300457China

We demonstrate that a dielectric anapole resonator on a metallic mirror can enhance the third harmonic emission by two orders of magnitude compared to a typical anapole resonator on an insulator *** employing a gold mirror under a silicon nanodisk,we introduce a novel characteristic of the anapole mode through the spatial overlap of resonantly excited Cartesian electric and toroidal dipole *** is a remarkable improvement on the early demonstrations of the anapole mode in which the electric and toroidal modes interfere ***,our system produces a significant near-field enhancement,facilitating the nonlinear ***,the mirror surface boosts the nonlinear emission via the free-charge oscillations within the interface,equivalent to producing a mirror image of the nonlinear source and the pump beneath the *** found that these improvements result in an extremely high experimentally obtained efficiency of 0.01%.

关键词： resonator pump mirror

Critical care specialists,the missing link in organ procurement for transplantation

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World Journal of Critical Care Medicine 2024年第2期13卷 1-6页

作者： Francisca Del rocio Gonzalez Cohens Fernando M Gonzalez Web Intelligence Centre Faculty of Physics and Mathematical SciencesUniversidad de ChileSantiago 8370397Chile Department of Nephrology Faculty of MedicineUniversidad de ChileSantiago 7500922Chile

The procurement process for organ donation begins with the identification of potential organ donors in emergency or critical care units(CCU),followed by their clinical evaluation,diagnostic procedures,and therapeutic interventions,mostly conducted in *** concludes with the request for organ donation and,if accepted,the retrieval of *** most interventions occurring in detection units,there has been a neglect of the strategic role played by critical care specialists(CCS)in managing and caring for brain-dead or near-brain-death *** arise:Are they willing to undertake this responsibility?Do they fully comprehend the nature of organ procurement?Are they aware of the specific interventions required to maintain possible organ donors in optimal physiological condition?Our objective is to examine the role of CCS in organ procurement and propose ways to enhance it,ultimately aiming to increase and enhance organ donation rates.

关键词： Organ procurement Transplantation Brain death Cardiac death Organ donation

The Beneficial Effects of Components of Garlic (Allium sativum L.) in the Poultry Industry

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Food and Nutrition Sciences 2024年第1期15卷 27-57页

作者： Alejandra Meza-Rios Gilberto Velazquez-Juarez Inkar Castellanos-Huerta rocio Ivette Lopez-Roa Luis A. Anguiano-Sevilla Xochitl Hernanez-Velasco Xochitl Hernanez-Velasco Saeed El-Ashram Ebtsam Al-Olayan Billy Hargis Guillermo Tellez-Isaias Adelaida Sara Minia Zepeda-morales Departamento de Farmacobiología CUCEI Universidad de Guadalajara Blvd. M. García Barragán Guadalajara México Laboratorio de Análisis Fisicoquímicos Externos Departamento de Química CUCEI Universidad de Guadalajara Boulevard Marcelino García Barragán Guadalajara México Center of Excellence for Poultry Science Department of Poultry Science Dale Bumpers College of Agricultural Food and Life Sciences University of Arkansas Cumberland United States Laboratorio de Investigación y Desarrollo Farmacéutico Departamento de Farmacobiología CUCEI Universidad de Guadalajara Boulevard Marcelino García Barragán Guadalajara México Departamento de Medicina y Zootecnia de Aves Facultad de Medicina Veterinaria y Zootecnia UNAM Mexico Mexico Zoology Department Faculty of Science Kafrelsheikh University Kafr El-Sheikh Egypt Department of Zoology College of Science King Saud University Riyadh Saudi Arabia Laboratorio de Análisis Clínicos y Bacteriológicos (vinculación) Departamento de Farmacobiología CUCEI Universidad de Guadalajara Boulevard Marcelino García Barragán Guadalajara México

Plant-based antimicrobial agents are readily available, cost-effective, and exhibit low toxicity, making them promising alternatives in combatting microbial infections. Among these plants, garlic (Allium sativum) stands out for its traditional medicinal use in effectively combating various microorganisms. In the poultry industry, preventing avian virus and bacterial infections is paramount for chicken husbandry. However, using conventional drugs poses potential risks to human health. Garlic, a widely used Asian plant in traditional medicine for various pathologies, has shown potential as an herbal prophylactic remedy against viral and bacterial infections. Recently, researchers explored garlic and its derivatives as a scientific strategy in veterinary practices for diverse purposes, such as improving poultry production characteristics and acting as antibiotic growth promoters. This comprehensive review delves into garlic and its derivatives as preventive and corrective treatments for viral diseases in laying hens and broilers. The paper highlights their potential effectiveness and safety as a natural means to enhance poultry health and welfare while mitigating the risks associated with conventional drug usage in the food industry.

关键词： Garlic Antiviral Veterinary Chickens Allium sativum

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空中的波希米亚之风flix阁楼公寓

室内设计与装修 2024年第10期 38-41页

作者： Imagen Subliminal(摄影) Miguel de Guzman(摄影) rocio Romero(摄影) 朝阳(译) 无不详 gon architects

城市中心的阁楼通常被认为是极具吸引力的空间:它们高居在建筑的顶层,部分结构从街道上可以看到,但可望而不可即,有时还会与波希米亚式的生活方式产生联想。其空间结构也与建筑的其他楼层不同,为了符合城市规划的条例,阁楼一般屋顶倾斜... 详细信息

城市中心的阁楼通常被认为是极具吸引力的空间:它们高居在建筑的顶层,部分结构从街道上可以看到,但可望而不可即,有时还会与波希米亚式的生活方式产生联想。其空间结构也与建筑的其他楼层不同,为了符合城市规划的条例,阁楼一般屋顶倾斜,房间面积大,隔断少,且天花板高度低。

关键词：空间结构城市规划阁楼波希米亚公寓隔断天花板房间面积

Current status and potential of morphometric sperm analysis

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Asian Journal of Andrology 2016年第6期18卷 863-870页

作者： Alejandro Maroto-morales Olga Garcia-Alvarez Manuel Ramon Felipe Martinez-Pastor M rocio Fernandez-Santos A Josefa Soler Jose Julian Garde SaBio IREC (CSIC - UCLM -JCCM) Albacete Spain Biomedical Center Medical Faculty in Pilsen Charles University in Prague Pilsen Czech Republic Regional Center of Animal Selection and Reproduction (CERSYRA) JCCM Valdepenas Spain 4Institute for Animal Health and Cattle Development University of Leon LeOn Spain Department of Molecular Biology University of Leon Leon Spain Faculty of Pharmacy (UCLM) Albacete Spain

The spermatozoon is the most diverse cell type known and this diversity is considered to reflect differences in sperm function. How the diversity in sperm morphology arose during speciation and what role the different specializations play in sperm function, however, remain incompletely characterized. This work reviews the hypotheses proposed to explain sperm morphological evolution, with a focus on some aspects of sperm morphometric evaluation; the ability of morphometrics to predict sperm cryoresistance and male fertility is also discussed. For this, the evaluation of patterns of change of sperm head morphometry throughout a process, instead of the study of the morphometric characteristics of the sperm head at different stages, allows a better identification of the males with different sperm cryoconservation ability. These new approaches, together with more studies employing a greater number of individuals, are needed to obtain novel results concerning the role of sperm morphometry on sperm function. Future studies should aim at understanding the causes of sperm design diversity and the mechanisms that generate them, giving increased attention to other sperm structures besides the sperm head. The implementation of scientific and technological advances could benefit the simultaneous examination of sperm phenotype and sperm function, demonstrating that sperm morphometry could be a useful tool for sperm assessment.

关键词： computer-assisted sperm morphometric analysis mammals sperm function sperm morphometry

Effect of magnesium on the aluminothermic reduction rate of zinc oxide obtained from spent alkaline battery anodes for the preparation of Al–Zn–Mg alloys

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International Journal of Minerals,Metallurgy and Materials 2016年第4期23卷 458-465页

作者： rocio Ochoa Alfredo Flores Jesus Torres Cinvestav-Saltillo

The aluminothermic reduction of zinc oxide（ZnO） from alkaline battery anodes using molten Al may be a good option for the elaboration of secondary 7000-series alloys. This process is affected by the initial content of Mg within molten Al, which decreases the surface tension of the molten metal and conversely increases the wettability of ZnO particles. The effect of initial Mg concentration on the aluminothermic reduction rate of ZnO was analyzed at the following values： 0.90wt%, 1.20wt%, 4.00t%, 4.25wt%, and 4.40wt%. The ZnO particles were incorporated by mechanical agitation using a graphite paddle inside a bath of molten Al maintained at a constant temperature of 1123 K and at a constant agitation speed of 250 r/min, the treatment time was 240 min and the ZnO particle size was 450？500 mesh. The results show an increase in Zn concentration in the prepared alloys up to 5.43wt% for the highest initial concentration of Mg. The reaction products obtained were characterized by scanning electron microscopy and X-ray diffraction, and the efficiency of the reaction was measured on the basis of the different concentrations of Mg studied.

关键词： aluminothermic reduction alkaline batteries zinc oxide waste utilization aluminum zinc magnesium alloys