Photonics and Nanostructures-Fundamentals and Applications最新文献_第4页

Multiple micro-cavity vibro-polaritons formation with different vibrational bands of the methylene group 亚甲基不同振带形成的多重微腔振动极化子

IF 2.5 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-07-01 DOI: 10.1016/j.photonics.2024.101294

Mario Malerba , Mathieu Jeannin, Paul Goulain, Adel Bousseksou, Raffaele Colombelli, Jean-Michel Manceau

{"title":"Multiple micro-cavity vibro-polaritons formation with different vibrational bands of the methylene group","authors":"Mario Malerba , Mathieu Jeannin, Paul Goulain, Adel Bousseksou, Raffaele Colombelli, Jean-Michel Manceau","doi":"10.1016/j.photonics.2024.101294","DOIUrl":"https://doi.org/10.1016/j.photonics.2024.101294","url":null,"abstract":"<div><p>We present an experimental technique to accurately predict the formation of vibro-polaritons from a molecular polymeric film embedded in a resonant mid-infrared cavity. Using simple Fourier-transform reflectance measurement, we extract the complex dielectric function of a polyethylene film using Kramers-Kronig relations. The fitted dielectric function can be plugged into a numerical code to predict the strength and dispersion of the strong light-matter coupling regime between the quantized electromagnetic modes of a microcavity and the vibrational bands of the molecules. As a demonstration, we experimentally resolve the simultaneous formation of multiple vibro-polariton modes issued from the strong coupling of some vibrational bands of the methylene group (CH<sub>2</sub>) in a 2.5-μm-thick polyethylene film embedded in a microcavity. We measure a Rabi splitting of 6.3 THz for the stretching doublet around 87.5 THz and a Rabi splitting of 1.1 THz for the scissoring doublet around 43.7 THz, in excellent agreement with numerical predictions.</p></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"61 ","pages":"Article 101294"},"PeriodicalIF":2.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141539842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance perfect absorption infrared photodetectors with garphene-based SiC grating microstructures 采用基于石墨烯的碳化硅光栅微结构的高性能完美吸收红外光探测器

IF 2.5 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-26 DOI: 10.1016/j.photonics.2024.101292

Yongjiang Liu , Zheng-Da Hu , Jingjing Wu , Jicheng Wang , Feng Zhang

引用次数: 0

Ultrasensitive refractive index and temperature sensor based on D-shaped photonic crystal fiber by group birefringence response in a Sagnac interferometer 基于 D 型光子晶体光纤的超灵敏折射率和温度传感器，在萨格纳克干涉仪中实现群双折射响应

IF 2.5 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-24 DOI: 10.1016/j.photonics.2024.101291

Zefeng Li , Jinhui Yuan , Lan Rao , Binbin Yan , Kuiru Wang , Xinzhu Sang , Qiang Wu , Chongxiu Yu

{"title":"Ultrasensitive refractive index and temperature sensor based on D-shaped photonic crystal fiber by group birefringence response in a Sagnac interferometer","authors":"Zefeng Li , Jinhui Yuan , Lan Rao , Binbin Yan , Kuiru Wang , Xinzhu Sang , Qiang Wu , Chongxiu Yu","doi":"10.1016/j.photonics.2024.101291","DOIUrl":"https://doi.org/10.1016/j.photonics.2024.101291","url":null,"abstract":"<div><p>In this paper, a D-shaped photonic crystal fiber (PCF) sensor based on a Sagnac interferometer is proposed, and it can achieve ultrahigh refractive index (RI) and temperature sensitivity when operating around the turning point of group birefringence (<em>B</em><sub>g</sub>). We undertake a theoretical analysis on <em>B</em><sub>g</sub> and a simulation calculation to study the sensing characteristics and obtain the optimized structure parameters of the D-shaped PCF sensor. The simulation results show that the maximum average RI sensitivities can reach 3253.33 and 15500 nm/RIU in the RI range of 1.33 to 1.35 and 1.40 to 1.42, respectively. When the temperature changes from -50 to 0 °C and 0 to 50 °C, the maximum average temperature sensitivities are up to 10.11 and 10.67 nm/°C, respectively. The proposed D-shaped PCF sensor can achieve dual-parameter sensing and has great potential for practical applications in biochemical and environmental science.</p></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"61 ","pages":"Article 101291"},"PeriodicalIF":2.5,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terahertz angle sensor based on the asymmetry coupling of the square and L-shaped structure 基于方形和 L 形结构不对称耦合的太赫兹角度传感器

IF 2.5 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-21 DOI: 10.1016/j.photonics.2024.101288

Zhen Zhang , Linji Yang , Junfeng Fan , Xinyi Chen , Xin Chen , Huan Zhou , Yong Ma , Renpu Li

引用次数: 0

Comparison of SERS spectra of intact and inactivated viruses via machine learning algorithms for the viral disease’s diagnosis application 通过机器学习算法比较完整病毒和灭活病毒的 SERS 光谱，用于病毒性疾病的诊断应用

IF 2.5 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-20 DOI: 10.1016/j.photonics.2024.101290

Olga Andreeva , Artem Tabarov , Konstantin Grigorenko , Alexander Dobroslavin , Azat Gazizulin , Andrey Gorshkov , Alyona Zheltukhina , Nina Gavrilova , Daria Danilenko , Vladimir Vitkin

{"title":"Comparison of SERS spectra of intact and inactivated viruses via machine learning algorithms for the viral disease’s diagnosis application","authors":"Olga Andreeva , Artem Tabarov , Konstantin Grigorenko , Alexander Dobroslavin , Azat Gazizulin , Andrey Gorshkov , Alyona Zheltukhina , Nina Gavrilova , Daria Danilenko , Vladimir Vitkin","doi":"10.1016/j.photonics.2024.101290","DOIUrl":"https://doi.org/10.1016/j.photonics.2024.101290","url":null,"abstract":"<div><p>In this work, Surface-enhanced Raman spectroscopy (SERS) along with machine learning algorithms (MLA) were used to detect and classify the viral particles to assess the possibility of using the spectra of inactivated influenza A viruses for MLA training and spectra database compilation for further study and diagnosis of intact forms of the virus. Viral particles inactivation was performed by formalin, ultraviolet and beta-propiolactone. Support vector method and principal component analysis allowed to classify intact and inactivated viral particles spectra with an accuracy of 80.0–96.7 %. The results obtained suggest that it is not advisable to create a spectral database and train machine learning algorithms for their further application in SERS diagnostics of intact viruses based on the spectra of the inactivated virus particles.</p></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"61 ","pages":"Article 101290"},"PeriodicalIF":2.5,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibration attenuation and wave propagation analysis of 3D star-shaped resonant plate structures and their derivatives with ultra-wide band gap 具有超宽带隙的三维星形谐振板结构及其衍生物的振动衰减和波传播分析

IF 2.5 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-06-14 DOI: 10.1016/j.photonics.2024.101289

Shu-liang Cheng , Xian-duo Li , Qiang Zhang , Yong-tao Sun , Ya-jun Xin , Qun Yan , Qian Ding , Hao Yan

{"title":"Vibration attenuation and wave propagation analysis of 3D star-shaped resonant plate structures and their derivatives with ultra-wide band gap","authors":"Shu-liang Cheng , Xian-duo Li , Qiang Zhang , Yong-tao Sun , Ya-jun Xin , Qun Yan , Qian Ding , Hao Yan","doi":"10.1016/j.photonics.2024.101289","DOIUrl":"10.1016/j.photonics.2024.101289","url":null,"abstract":"<div><p>Based on the local resonance effect of elastic waves, three single-phase acoustic metamaterials are proposed in this paper. Based on the finite element method and Bloch's theorem, the energy band structure diagrams and vibration modes are plotted, and the band gap properties and band gap opening mechanism of these structures are explored. New structures possessing lower frequency band gaps are obtained by topological optimization. The transmission curves verify the accuracy of the band gap and the vibration attenuation ability of the structure. Finally, the structural parameters were adjusted and the effect of each parameter change on the band gap characteristics was analyzed. The results show that the proposed structure has a maximum band gap coverage of 72.4 % and a strongest attenuation peak of less than −400 (dB) due to the occurrence of a local resonance. This paper provides a methodology for analyzing the vibration and noise reduction performance of single-phase material phononic crystals, as well as a three-dimensional phononic crystal with potential for practical applications.</p></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"61 ","pages":"Article 101289"},"PeriodicalIF":2.5,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reverse design of multifunctional cascade devices based on the adjoint method 基于邻接法的多功能级联器件逆向设计

IF 2.7 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-05-24 DOI: 10.1016/j.photonics.2024.101275

Zhibin Wang, Zhengyang Li, Xuwei Hou, Jiutian Zhang

引用次数: 0

Tunability of the nonlinear optical absorption in a GaAs/Ga0.7 Al0.3 As spherical quantum dots under external factors GaAs/Ga Al As 球形量子点的非线性光吸收在外部因素下的可调谐性

IF 2.7 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-05-21 DOI: 10.1016/j.photonics.2024.101277

Ceng Chang, Xuechao Li, Yawen Cai, Xiaolong Yan, Xing Wang

{"title":"Tunability of the nonlinear optical absorption in a GaAs/Ga0.7 Al0.3 As spherical quantum dots under external factors","authors":"Ceng Chang, Xuechao Li, Yawen Cai, Xiaolong Yan, Xing Wang","doi":"10.1016/j.photonics.2024.101277","DOIUrl":"10.1016/j.photonics.2024.101277","url":null,"abstract":"<div><p>We theoretically studied the linear, third-order nonlinear and total optical absorption coefficient changes of a typical GaAs/Al<sub>0.3</sub>Ga<sub>0.7</sub>As quantum dot system under the influence of hydrostatic pressure and temperature. The influence of hydrostatic pressure and temperature on the system is treated within the framework of effective mass. In this method, the relative changes of linear and nonlinear absorption coefficients are obtained by using density matrix method and iterative method. In addition, we also reveal the mechanism of the influence of hydrostatic pressure and temperature on the nonlinear optical properties, which is of great significance for us to better understand the causes. We have shown that hydrostatic pressure and temperature change the effective mass, resulting in significant changes in the linear and nonlinear optical properties of the system. In addition, we also reveal the mechanism of the influence of effective mass on the nonlinear optical properties, which is of great significance for us to better understand the causes.</p></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"60 ","pages":"Article 101277"},"PeriodicalIF":2.7,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141145037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mid-IR supercontinuum generation in a silicon nitride loaded lithium niobate on sapphire waveguide 在蓝宝石波导上的氮化硅负载铌酸锂中产生中红外超连续真空

IF 2.7 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-05-09 DOI: 10.1016/j.photonics.2024.101274

Kokou Firmin Fiaboe , Marina Raevskaia , Marko Perestjuk , Alberto Della-Torre , Thach Nguyen , Arnan Mitchell , Christelle Monat , Christian Grillet

{"title":"Mid-IR supercontinuum generation in a silicon nitride loaded lithium niobate on sapphire waveguide","authors":"Kokou Firmin Fiaboe , Marina Raevskaia , Marko Perestjuk , Alberto Della-Torre , Thach Nguyen , Arnan Mitchell , Christelle Monat , Christian Grillet","doi":"10.1016/j.photonics.2024.101274","DOIUrl":"https://doi.org/10.1016/j.photonics.2024.101274","url":null,"abstract":"<div><p>In spectroscopy, having access to a wide range of wavelengths within the mid-infrared region is crucial for conducting thorough and versatile analyses. In our research, we successfully demonstrate numerically the generation of supercontinuum within a waveguide made of silicon nitride loaded onto lithium niobate on a sapphire substrate, with a specific focus on the mid-infrared wavelength range. By implementing effective lateral leakage and dispersion engineering techniques, we have significantly broadened our system’s spectral range, covering wavelengths from the near-infrared (near-IR) to the mid-infrared (mid-IR) regions. Our results indicate that when a silicon nitride-loaded lithium niobate waveguide is excited with a commercially available femtosecond fiber laser pump at 2070 nm, it has the capability to produce a supercontinuum that spans more than one octave within the mid-infrared wavelength range.</p></div>","PeriodicalId":49699,"journal":{"name":"Photonics and Nanostructures-Fundamentals and Applications","volume":"60 ","pages":"Article 101274"},"PeriodicalIF":2.7,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140910219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A semianalytically synthesized ultrathin photolithographic metagrating for sub-THz beam splitting 用于亚千赫光束分束的半解析合成超薄光刻元镜

IF 2.7 3区物理与天体物理

Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-05-07 DOI: 10.1016/j.photonics.2024.101276

M.A. Tumashov , Y. Yashno , S.A. Kuznetsov , P.A. Lazorskiy , A. Epstein , S.B. Glybovski

引用次数: 0