Article
Engineering, Electrical & Electronic
Mohamed K. Emara, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta
Summary: A novel metallo-dielectric Huygens' unit cell is proposed that can operate as either a quarter wave plate or a half-wave plate. This unit cell is suitable for millimeter-wave implementation in printed-circuit board fabrication due to the absence of small line widths and gaps. It has been demonstrated in near-field experiments and simulations for polarization conversion and rotation of linear and circular polarization antennas.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Chemistry, Multidisciplinary
Yadong Deng, Cuo Wu, Chao Meng, Sergey Bozhevolnyi, Fei Ding
Summary: This study presents a versatile GSP metasurface platform based on nanoscale quarter-wave plates that enable efficient control over the polarization state of light and reflected fields. By utilizing resonance and geometric phases, independent and simultaneous phase modulation of circularly polarized waves is achieved, allowing for arbitrary beam steering. The established platform offers flexible solutions for diverse metasurface-based polarization optics in modern integrated photonic devices.
Article
Biochemical Research Methods
Karthika Kappalakandy Valapil, Marcin Szymon Filipiak, Weronika Rekiel, Elzbieta Jarosinska, Wojciech Nogala, Martin Jonsson-Niedziolka, Emilia Witkowska Nery
Summary: Introduces a low-cost method based on CO2 laser irradiation for preparing ITO microelectrodes and electrode arrays. Different sizes and shapes of electrodes were fabricated through direct ablation of the ITO layer and laser cutting of scotch tape stencils. This method offers a low-cost and fast fabrication of ITO electrodes for various applications.
Article
Engineering, Electrical & Electronic
Stefan Belle, Stefan F. Helfert, Ralf Hellmann
Summary: This study presents hollow waveguide arrays functioning as quarter- and half-wave plates, converting linear polarized input fields into circular and 180 degrees phase-shifted linear polarized output fields. Experimental results confirm the characteristic properties of these wave plates, including angle-dependent phase shift, Stokes vectors, and polarization ellipses.
IEEE PHOTONICS JOURNAL
(2022)
Article
Optics
Shuqi Mu, Yingtong Shi, Yintong Song, Wei Liu, Wanxue Wei, Qihuang Gong, Dashan Dong, Kebin Shi
Summary: Analytical modeling of optical field propagation in a scattering medium is important for computational optics. However, there lacks an analytical model to include the full tensor nature of birefringent scattering. In this study, we present an analytical tool with a polarization transfer function tensor to model the field propagation in a birefringent scattering medium. The proposed model provides a more accurate and efficient forward analytical tool for iterative reconstruction of birefringence-related scattering processes.
Article
Materials Science, Ceramics
D. Rashad, Sh. K. Amin, M. S. Mansour, H. Abdallah
Summary: Three tubular ceramic membranes were fabricated and tested for water treatment applications, with F2 showing the best performance for antibacterial microfiltration and F3 being the most effective at removing total coliform.
CERAMICS INTERNATIONAL
(2022)
Article
Optics
Xiaomei Chen, Wen-gao Lu, Jialun Tang, Yongyou Zhang, Yongtian Wang, Gregory D. Scholes, Haizheng Zhong
Summary: Waveplates are commonly used in photonics for controlling the polarization of light, typically made from birefringent crystals. This study introduces a discovery of wideband achromatic retardation in Cs4PbBr6 perovskite crystals embedded with CsPbBr3 nanocrystals, providing potential for future applications with their ease of fabrication.
Article
Optics
Muhammad Talal Ali Khan, Haisu Li, Yajing Liu, Gang-Ding Peng, Shaghik Atakaramians
Summary: This article experimentally demonstrates a compact terahertz dispersion compensator based on subwavelength gratings. The low-loss cyclic olefin copolymer is utilized for fabricating the gratings, which exhibit high negative group velocity dispersion and birefringence for achieving dispersion compensation in terahertz communication systems.
Review
Chemistry, Physical
Jessica Santos Stefano, Luiz Otavio Orzari, Habdias Araujo Silva-Neto, Vanessa Neiva de Ataide, Leticia Francine Mendes, Wendell Karlos Tomazelli Coltro, Thiago Regis Longo Cesar Paixao, Bruno Campos Janegitz
Summary: This review discusses various strategies for fabricating low-cost electrochemical sensors using consumables, and emphasizes the performance, advantages, and disadvantages of the obtained devices.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Article
Chemistry, Applied
Xuejin Wang, Daniel Vaccarello, Matthew J. Turnbull, Zhifeng Ding
Summary: A cost-effective Cu2ZnZnS4 (CZTS) film was developed for photovoltaic devices using a two-step method. The study demonstrated that CZTS film fabricated by galvanostatic electroplating meets the requirements for a light-absorbing layer and is a potential candidate for assembling CZTS solar cells.
Article
Engineering, Electrical & Electronic
Jorge Quereda, Sruthi Kuriakose, Carmen Munuera, Federico J. Mompean, Abdullah M. Al-Enizi, Ayman Nafady, Enrique Diez, Riccardo Frisenda, Andres Castellanos-Gomez
Summary: This study presents a low-cost and easy-to-implement technique for fabricating large-area WS2 photodetectors on transparent and flexible polycarbonate substrates. The method involves deposition of large-area thin films of WS2 using an abrasion-induced method, followed by deposition of interdigitated electrical contacts using thermal evaporation. The photodetectors exhibit well-balanced performances in terms of responsivity and response time, with a high detectivity value.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Physics, Applied
Simonas Varapnickas, Samlan Chandran Thodika, Fabien Morote, Saulius Juodkazis, Mangirdas Malinauskas, Etienne Brasselet
Summary: This study reports on the design, production, and characterization of dielectric metasurface birefringent optical retarders made from femtosecond laser 3D printing technology, with a polarization conversion efficiency more than 10 times larger than previously reported. The flexibility of the fabrication process allows for arbitrary orientation of the artificially engineered optical axis, opening up new possibilities for 3D printed geometric phase optical elements.
APPLIED PHYSICS LETTERS
(2021)
Article
Crystallography
Sylvain Le Tonquesse, Yoshitaka Matsushita, Priyanka Jood, Michihiro Ohta, Takao Mori, David Berthebaud
Summary: Metallization of undoped CrSi2 with Ti and Nb was explored in this study, with Ti showing strong adhesion and negligible electrical contact resistance, while Nb resulted in cracks and Si diffusion. The research aims to initiate the development of more reliable and efficient CrSi2 thermoelectric legs with an optimized design.
Article
Nanoscience & Nanotechnology
Ruixuan Jiang, Yuchen Luan, Jing Li, Feng Ye, Shujie Zhang, Zhiwei Su, Chengkai Jin, Guoqing Tong, Jinhui Tong, Fuzhi Huang, Yi-Bing Cheng, Tongle Bu
Summary: Low-cost, high-efficiency perovskite solar cells (PSCs) have been successfully fabricated using a powder engineering technique, which involves blending low-purity PbI2 with formamidinium iodide to form high-quality FAPbI3 powders. The as-synthesized black powders based on the low-purity PbI2 exhibit a champion power conversion efficiency (PCE) of 23.9% and show excellent stability after storage without encapsulation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yixuan Dou, Marie Solange Tumusange, Jianbo Jin, Xiaoming Wang, Erin R. Crater, Suhao Liu, Liyan Zhu, Samir Zuberi, Gavin Harman, Conner Weaver, Balaji Ramanujam, Ambalanath Shan, Robert B. Moore, Nikolas J. Podraza, Yanfa Yan, Lina Quan
Summary: This paper reports the discovery of a broadband (540-1060nm) achromatic quarter waveplate (A-QWP) based on a two-dimensional (2D) layered hybrid copper halide (HCH) perovskite single crystal. The A-QWP can modulate light polarization and retardation across a broad range of wavelengths. The design of the A-QWP utilizes the in-plane optical birefringence triggered by Jahn-Teller distortion in the 2D copper chloride (CuCl6) layers of the HCH crystal.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Electrical & Electronic
R. Vicarini, V Maurice, M. Abdel Hafiz, J. Rutkowski, C. Gorecki, N. Passilly, L. Ribetto, V Gaff, V. Volant, S. Galliou, R. Boudot
SENSORS AND ACTUATORS A-PHYSICAL
(2018)
Article
Optics
P. Struk, S. Bargiel, Q. A. A. Tanguy, F. E. Garcia Ramirez, N. Passilly, P. Lutz, O. Gaiffe, H. Xie, C. Gorecki
Article
Optics
Jost Vicente Carrion, Jorge Albero, Maciej Baranski, Christophe Gorecki, Nicolas Passilly
Article
Optics
Arpan Dutta, Khairul Alam, Tarmo Nuutinen, Eero Hulkko, Petri Karvinen, Markku Kuittinen, J. Jussi Toppari, Erik M. Vartiainen
Article
Acoustics
Remy Vicarini, Moustafa Abdel Hafiz, Vincent Maurice, Nicolas Passilly, Eric Kroemer, Luca Ribetto, Vincent Gaff, Christophe Gorecki, Serge Galliou, Rodolphe Boudot
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2019)
Article
Nanoscience & Nanotechnology
Peng Li, Khairul Alam, Henri Partanen, Markku Kuittinen, Guoguo Kang, Jari Turunen
Article
Optics
Quentin A. A. Tanguy, Olivier Gaiffe, Nicolas Passilly, Jean-Marc Cote, Gonzalo Cabodevila, Sylwester Bargiel, Philippe Lutz, Huikai Xie, Christophe Gorecki
Article
Chemistry, Multidisciplinary
Faisal Ahmed, Abde Mayeen Shafi, David M. A. Mackenzie, Maaz Ahmed Qureshi, Henry A. Fernandez, Hoon Hahn Yoon, Md Gius Uddin, Markku Kuittinen, Zhipei Sun, Harri Lipsanen
Summary: The study found that annealing at temperatures between 500-525 K significantly enhances the performance of MoTe2 devices. At around 600 K, MoTe2 devices exhibit a transition in characteristics, indicating potential applications for thermal sensing.
ADVANCED MATERIALS INTERFACES
(2021)
Proceedings Paper
Optics
Janvit Tippinit, Segolene Pelisset, Marian Baah, Markku Kuittinen, Matthieu Roussey
2020 PHOTONICS NORTH (PN)
(2020)
Article
Chemistry, Multidisciplinary
Khairul Alam, Kabusure M. Kabusure, Benjamin O. Asamoah, Tarmo Nuutinen, Marian Baah, Sughra Mohamed, Antti Matikainen, Janne Heikkinen, Heikki Rekola, Matthieu Roussey, Markku Kuittinen, Tommi K. Hakala
Article
Optics
Denis Brazhnikov, Michael Petersen, Gregoire Coget, Nicolas Passilly, Vincent Maurice, Christophe Gorecki, Rodolphe Boudot
Article
Optics
Antti Hannonen, Henri Partanen, Jani Tervo, Tero Setala, Ari T. Friberg
Article
Optics
Bisrat G. Assefa, Toni Saastamoinen, Markku Pekkarinen, Ville Nissinen, Joris Biskop, Markku Kuittinen, Jari Turunen, Jyrki Saarinen
Proceedings Paper
Green & Sustainable Science & Technology
Timo Aho, Mircea Guina, Farid Elsehrawy, Federica Cappelluti, Marianna Raappana, Antti Tukiainen, A. B. M. Khairul Alam, Ismo Vartiainen, Markku Kuittinen, Tapio Niemi
2018 IEEE 7TH WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY CONVERSION (WCPEC) (A JOINT CONFERENCE OF 45TH IEEE PVSC, 28TH PVSEC & 34TH EU PVSEC)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Bisrat G. Assefa, Toni Saastamoinen, Markku Pekkarinen, Joris Biskop, Markku Kuittinen, Jari Turunen, Jyrki Saarinen
LIGHT-EMITTING DIODES: MATERIALS, DEVICES, AND APPLICATIONS FOR SOLID STATE LIGHTING XXII
(2018)
