Optical and Quantum Electronics最新文献_第8页

First-principles study on optoelectronic and transport properties of Al-based perovskites for energy applications 用于能源应用的铝基过氧化物的光电和传输特性的第一性原理研究

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07785-7

M. M. Moharam, Sana Ullah Asif, Ebraheem Abdu Musad Saleh, Raed H. Althomali, Sabiha Sabeen, Gehan M. Nabil, Asmaa F. Kassem, Muhammad Irfan, Imran Khan

{"title":"First-principles study on optoelectronic and transport properties of Al-based perovskites for energy applications","authors":"M. M. Moharam, Sana Ullah Asif, Ebraheem Abdu Musad Saleh, Raed H. Althomali, Sabiha Sabeen, Gehan M. Nabil, Asmaa F. Kassem, Muhammad Irfan, Imran Khan","doi":"10.1007/s11082-024-07785-7","DOIUrl":"10.1007/s11082-024-07785-7","url":null,"abstract":"<div><p>Perovskites are a class of materials with a diversified combination of various properties that allow them to be used in a wide range of technologies, from solar cells and LEDs to superconductivity and enormous magneto-resistance, as well as topological insulators. Perovskites, established as promising replacements for silicon in conventional solar cells, are employed in solid-state illumination, sensing, and energy harvesting, while others, like oxide perovskites, have dielectric solid properties. Phonons and electron–phonon interactions play a significant role in materials, especially in the hybridization between Sr-p, Al-s,p, Er-s,d, and Ce-d orbitals. This hybridization is essential for understanding the energy gap and refractive index, which are crucial for fabricating optoelectronic devices. Optical spectra reveal a prominent absorption peak between 4.0 and 12.0 eV, depending on the energy gap between the hybridized bands. The Boltztrap code calculates the thermoelectric characteristics of perovskite oxides in the temperature range of 0 to 800 K. We observed that parental and doped compounds have a higher merit ZT value (0.42) and (1.45), respectively. The Seebeck coefficients of both compounds fall into the positive range of 50–800 K, indicating that they are p-type materials, and after this range, their nature changed to n-type. It is observed that materials in the high reflectivity zone have strong thermoelectric capabilities and could be useful for solar heating. The band gap tuning affects their optoelectronic capabilities, which are essential for developing extremely efficient optoelectronic/luminescent devices.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Graphene-based metasurface solar absorber using Fe–Fe2O3–Ti multilayer structure 使用 Fe-Fe2O3-Ti 多层结构的石墨烯基超表面太阳能吸收器

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07767-9

Meshari Alsharari, Bo Bo Han, Shobhit K. Patel, Naim Ben Ali, Khaled Aliqab, Ammar Armghan

{"title":"Graphene-based metasurface solar absorber using Fe–Fe2O3–Ti multilayer structure","authors":"Meshari Alsharari, Bo Bo Han, Shobhit K. Patel, Naim Ben Ali, Khaled Aliqab, Ammar Armghan","doi":"10.1007/s11082-024-07767-9","DOIUrl":"10.1007/s11082-024-07767-9","url":null,"abstract":"<div><p>The generating absorber design for the thermal heating system is contributed with the three-layer composition of a resonator layer using iron, the substrate part by Ferric oxide, and the design’s bottom layer in Titanium respectively. The exposed absorption rates depend on the overall range of wavelength and can be identified with the best wavelength numbers (µm) of 0.37, 0.61, 0.88, and 2.11. The overall bandwidth number that we can present for the current design is 2800 nm by the wavelength separation of 0.2 and 3 µm and shows an effective percentage of 93.34%. The other two bandwidth numbers over the 2800 nm are 1500 nm (95.1%) by a wavelength separation of 1.5 and 3 µm, and 1000 nm (97.54%) with a wavelength configuration of 1.5 and 2.5 µm. With the respective presentation of the current design, the used material types and parametric rates, the analysis exploration of the changed parametric values, and the conclusion of the proposed work will be presented properly. The generated solar absorber can be used in a variety of various industrial applications of food processing, mineral processing, water desalination, and chemical production.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

221 nm far ultraviolet-C AlGaN laser diode with optimized p-AlN electron blocking epilayers 采用优化的 p-AlN 电子阻挡外延层的 221 纳米远紫外-C AlGaN 激光二极管

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07788-4

Syeda Wageeha Shakir, Muhammad Usman, Usman Habib, Shazma Ali, Jamshad Bashir, Zoya Noor

引用次数: 0

High-performance 5.5 THz coplanar waveguide-fed circular dielectric resonator antenna: a dual-band solution for advanced THz applications 高性能 5.5 THz 共面波导馈电圆介质谐振器天线：先进 THz 应用的双频解决方案

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07817-2

Perinbaraj Rathinakumar, K Vijayalakshmi

{"title":"High-performance 5.5 THz coplanar waveguide-fed circular dielectric resonator antenna: a dual-band solution for advanced THz applications","authors":"Perinbaraj Rathinakumar, K Vijayalakshmi","doi":"10.1007/s11082-024-07817-2","DOIUrl":"10.1007/s11082-024-07817-2","url":null,"abstract":"<div><p>An improved circular dielectric resonator antenna (CDRA) with a gain of 5.5 THz and excitation via a keyhole-shaped coplanar waveguide (CPW) is detailed in this research. The structure's feed and ground materials are silver, the substrate is silicon dioxide, and the dielectric resonator antenna (DRA) is silicon. The DRA is 5 μm in radius and 15 εm in height, and it is placed on a substrate that is 90 × 90 × 20 μm in size. An S11 value of –16.328 dB and a principal resonant frequency of 5.5 THz indicate that the antenna matches impedances admirably and scatters signals with minimal effect. Furthermore, the possibility of dual-band operation is demonstrated by a secondary resonance at 8.6 THz with an S11 of –6.7614 dB. With an operational bandwidth centered on 5.6 THz and a range of 5.0–6.2 THz, it is highly adaptable and may be used for a variety of applications. With a radiation efficiency of 68% and a peak gain of around 19 dB, this antenna exhibits a multi-lobe radiation pattern that is both highly gainful and highly directed. Phased array antennas, terahertz imaging systems, and autonomous vehicles and unmanned aerial vehicles (UAVs) can all benefit from these. Antenna performance is improved due to the creation of orthogonal and higher-order modes, which increase radiation efficiency and lead to high gain.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Creating of hollow-beam using closed nonlinear Michelson interferometer 利用封闭式非线性迈克尔逊干涉仪制造空心光束

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07760-2

Quy Ho Quang, Thang Nguyen Manh, Thanh Thai Doan, Kien Bui Xuan

引用次数: 0

Design optimisation of rare earth metal doped polymer optical planar waveguide sensor for microplastics detection in water 用于检测水中微塑料的掺稀土金属聚合物光学平面波导传感器的优化设计

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07024-z

Ahmad Izzat Mohd Hanafi, Nur Najahatul Huda Saris, Sevia Mahdaliza Idrus, Azura Hamzah, Nazirah Mohd Razali

{"title":"Design optimisation of rare earth metal doped polymer optical planar waveguide sensor for microplastics detection in water","authors":"Ahmad Izzat Mohd Hanafi, Nur Najahatul Huda Saris, Sevia Mahdaliza Idrus, Azura Hamzah, Nazirah Mohd Razali","doi":"10.1007/s11082-024-07024-z","DOIUrl":"10.1007/s11082-024-07024-z","url":null,"abstract":"<div><p>In recent times, the issue of microplastic pollution has garnered worldwide attention as it poses threat to both the environment and wildlife, including human health. This work demonstrated a simulation of a rare earth metal-doped polymer optical planar waveguide sensor with a circular core design to realise future sensing applications of detecting microplastics in water by utilising the Wave Optics Module in COMSOL Multiphysics® software. The sensor design optimisation was performed by varying the cladding thickness from 0 to 5 μm at a fixed 10 µm circular core diameter. The simulation involved changing the refractive index (RI) of the analyte, which varied from 1.480 to 1.500 refractive index units (RIUs) with respect to the RI of microplastics, to assess the optimum waveguide design for sensitivity performance of the sensor. The results successfully showed that the sensitivity of the waveguide sensor increased with decreasing cladding thickness. The highest sensitivity of 2.75 × 10<sup>–4</sup> in dimensionless unit was achieved for 0 µm cladding thickness waveguide sensor design. This sensitivity is 10<sup>7</sup> higher in magnitude than 5 µm cladding thickness, with an output sensitivity of 8.40 × 10<sup>–11</sup> in dimensionless unit. Considerably, incorporating the rare earth metal-doped polymer composite into materials with an optimised waveguide sensor design of 0 µm cladding thickness assures an excellent sensing potential for microplastic detection in water.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terahertz surface plasmon generation on a magnetized metal column by a rotating electron-beam 旋转电子束在磁化金属柱上产生太赫兹表面等离子体

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07784-8

Avijit Chamoli, Devki Nandan Gupta, Vijay Kumar

{"title":"Terahertz surface plasmon generation on a magnetized metal column by a rotating electron-beam","authors":"Avijit Chamoli, Devki Nandan Gupta, Vijay Kumar","doi":"10.1007/s11082-024-07784-8","DOIUrl":"10.1007/s11082-024-07784-8","url":null,"abstract":"<div><p>The excitation of surface plasma wave (SPW) by the interaction of laser and electron beam can generate efficient terahertz (THz) radiation, which may have many applications in THz optics and imaging. In this paper, we investigate THz surface plasmons using the interaction of a rotating electron beam with a magnetized metallic surface. These fields are excited via a transverse component of the current generated in the plasma. The idea behind this research is to enhance the transverse component of the current density by coupling the plasma electrons and the free electrons on the metal surface. The finite azimuthal rotation of the electron beam on the metal surface contributes to the excitation of the SPW via stronger ponderomotive force. The magnetic field applied along the metal surface contributes via cyclotron resonance. We estimate the THz field using a reasonable theoretical model. Several scaling laws are obtained for THz field estimation and optimization. From numerical results, we conclude that a considerable THz field strength can be enhanced by employing a rotating electron beam. The peak THz field strength is estimated about 70 GV/cm of 2.5 THz frequency for 0.4 T magnetic field. This research gives a unique and feasible method to generate THz radiation with a rotating electron beam on a magnetized metal column.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CMOS compatible TeO2—coated Si3N4 inverse parabolic rib waveguide for on-chip supercontinuum generation and high resolution OCT 与 CMOS 兼容的 TeO2 涂层 Si3N4 反抛物线肋波导，用于片上超连续真空发生和高分辨率 OCT

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07759-9

Deepak Garg, Ajeet Kumar

{"title":"CMOS compatible TeO2—coated Si3N4 inverse parabolic rib waveguide for on-chip supercontinuum generation and high resolution OCT","authors":"Deepak Garg, Ajeet Kumar","doi":"10.1007/s11082-024-07759-9","DOIUrl":"10.1007/s11082-024-07759-9","url":null,"abstract":"<div><p>We present the design and theoretical analysis of CMOS compatible Tellurium oxide (TeO<sub>2</sub>)-coated- Si<sub>3</sub>N<sub>4</sub> inverse parabolic rib waveguide having upper and lower cladding of barium fluoride (BaF<sub>2</sub>) for the generation of highly coherent supercontinuum generation having potential applications in the field of non-linear optics. The proposed design is dispersion engineered by tailoring various geometrical parameters and analyzing their effect on the dispersion profile. The proposed design offers a Zero Dispersion Wavelength (ZDW) near 1.7 μm. The design offers a low value of effective mode area 1.65 μm<sup>2</sup> and correspondingly high value of non-linear coefficient 2475.68 W<sup>−1</sup> km<sup>−1</sup> at pump wavelength of 2 μm. Our simulation reports a highly coherent supercontinuum broadening from 1–5 μm spanning over 2.32 octaves in only 1 mm long waveguide when pumped with hyperbolic secant pulses having pulse width 45 fs and peak power 6.1 kW. Additionally, operation at 1.3 μm yields a high axial resolution of 1.007 μm, enhancing its potential for optical coherence tomography. The proposed waveguide can help in various applications ranging from non-linear spectroscopy to optical coherence tomography and from medical imaging to high-bit rate telecommunication. Since the proposed design is CMOS compatible, it can be positioned as an excellent platform for low-loss and high performance future photonic integrated circuits.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

All dielectric compact broadband silicon waveguide mode converters 全介质紧凑型宽带硅波导模式转换器

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07747-z

Samar Hassan A. Hassan, Mohamed Farhat O. Hameed, Korany R. Mahmoud, Amr Wageeh, S. S. A. Obayya

{"title":"All dielectric compact broadband silicon waveguide mode converters","authors":"Samar Hassan A. Hassan, Mohamed Farhat O. Hameed, Korany R. Mahmoud, Amr Wageeh, S. S. A. Obayya","doi":"10.1007/s11082-024-07747-z","DOIUrl":"10.1007/s11082-024-07747-z","url":null,"abstract":"<div><p>Compact mode order converters (MOCs) operating at the mid-infrared regime are reported using silicon-on-calcium fluoride platform. The suggested designs convert the fundamental transverse electric (TE) mode to first and second order TE modes with total device lengths of only 5.89 μm and 5 μm, respectively, at λ = 3.14 µm. The full vectorial 3D finite-deference time-domain is utilized to analyze the TE<sub>0</sub> → TE<sub>1</sub> and TE<sub>0</sub>→TE<sub>2</sub> MOCs. The proposed designs depend on using dielectric material of Si<sub>3</sub>N<sub>4</sub> inside the Si core region to improve and facilitate the mode conversion process. The conversion efficiencies (inter-modal crosstalks [CTs]) are equal to 93.4% (− 19.2 dB), and 90% (− 17 dB) for TE<sub>0</sub>: TE<sub>1</sub> and TE<sub>0</sub>:TE<sub>2</sub> MOCs, respectively. Moreover, the reported designs have a wide wavelength range of 300 nm, where the conversion-efficiency (CE) and maximum CT are > 86% and < − 14.3 dB, respectively. Further, the fabrication tolerance of the suggested structures is handled to guarantee the presented mode converter’s fabrication viability. The reported designs can also be extended to other wavelength bands. In this regard, our device’s numerical results at λ = 1.55 µm are reported and compared to other conventional MOCs. The conversion efficiencies (inter-modal crosstalks [CTs]) are equal to 90% (− 19 dB), and 88% (− 19.7 dB) for TE<sub>0</sub>: TE<sub>1</sub> and TE<sub>0</sub>: TE<sub>2</sub> MOCs, respectively, at λ = 1.55 µm.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Versatile microwave photonic filter based on 100-channel brillouin raman fiber laser 基于 100 通道光致发光拉曼光纤激光器的多功能微波光子滤波器

IF 3.3 3区工程技术

Optical and Quantum Electronics Pub Date : 2024-11-16 DOI: 10.1007/s11082-024-07739-z

Zhi-Yong Yau, Yu-Gang Shee, Eng-Hock Lim, Zuxing Zhang, Mohd Adzir Mahdi

{"title":"Versatile microwave photonic filter based on 100-channel brillouin raman fiber laser","authors":"Zhi-Yong Yau, Yu-Gang Shee, Eng-Hock Lim, Zuxing Zhang, Mohd Adzir Mahdi","doi":"10.1007/s11082-024-07739-z","DOIUrl":"10.1007/s11082-024-07739-z","url":null,"abstract":"<div><p>Microwave photonic filters (MPF) are among the most crucial components required for meeting the demands of high-speed and high-frequency signal processing of modern telecommunication systems. For the first time, here, we propose an MPF based on a double wavelength spacing Brillouin-Raman fiber laser (BRFL) to realize a versatile bandpass filter. The proposed setup generated 100 optical taps output with ~ 20 GHz spacings as the light source of the MPF. A dispersive medium of 5 km long single mode fiber and 3.46 km long dispersion compensating fiber were used to characterize the effect of the time delay on the central frequency of the MPF passband. A reconfigurable 3-dB bandwidth from 150 MHz to 1.12 GHz centered around 10.3 GHz is achievable by varying the BRFL optical channel numbers using 10 to 100 optical taps with 20 GHz spacing. The 3-dB bandwidth and Q-factor of the proposed MPF were investigated experimentally and found to be in good agreement with simulation, demonstrating the potential of the BRFL as a laser source for the realization of flexible and versatile radio frequency transversal filters with potentially reduced cost and complexity.</p></div>","PeriodicalId":720,"journal":{"name":"Optical and Quantum Electronics","volume":"56 12","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0