Article
Energy & Fuels
Ehsan Karimi Yayshahri, Shiva Gorjian, Saeid Minaei
Summary: This study presents a solar lighting system for indoor farming that uses a parabolic dish concentrator and optical fibers to direct concentrated sunlight. The results show stable system performance and sufficient illuminance for growth environments, primarily influenced by solar radiation and incoming illuminance.
Article
Electrochemistry
Li-Syuan Chen, Manik Chandra Sil, Yu-Hsin Lee, Heng-Jui Liu, Chih-Ming Chen
Summary: The study introduces a new hybrid scattering layer consisting of micro-sized sericite flakes and TiO2 nanoparticles to enhance the light harvesting performance of dye-sensitized solar cells. Material optimization using different sizes of TiO2 nanoparticles led to improved power conversion efficiency under various lighting conditions. The addition of sericite in the scattering layer provides a new pathway for preparing more efficient light harvesting layers.
ELECTROCHIMICA ACTA
(2021)
Letter
Optics
Bumjoon Jang, Julian Gargiulo, Jisoo Kim, Johannes Buerger, Steffen Both, Hartmut Lehmann, Torsten Wieduwilt, Thomas Weiss, Stefan A. Maier, Markus A. Schmidt
Summary: The research focuses on combining on-chip integrated waveguides with spectroscopic methods to reduce geometric footprints and increase device densities, and interfacing light cages with optical fibers to create a fully fiber-integrated on-chip waveguide arrangement, improving gas diffusion times. The successful device integration via 3D nanoprinting demonstrates the attractiveness of the fiber-interfaced light cage as a waveguide platform for various spectroscopy-related fields such as bio-analytics, lab-on-chip photonic sensing, chemistry, and quantum metrology.
Article
Multidisciplinary Sciences
Netanel Biton, Judy Kupferman, Shlomi Arnon
Summary: This study examines the transmission of OAM beams through biological tissue, showing that OAM beams have higher transmittance compared to Gaussian beams, with the transmittance increasing with greater OAM. The results suggest that OAM beams can be valuable for OWC in medical implants, optical biological imaging, and medical diagnosis applications.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Grzegorz Stepniewski, Pascal Hanzi, Adam Filipkowski, Monika Janik, Mariusz Mrozek, Yuriy Stepanenko, Robert Bogdanowicz, Valerio Romano, Alexander Heidt, Ryszard Buczynski, Mariusz Klimczak
Summary: The integration of nanodiamonds with optical fibers has been shown to be a compelling methodology for magneto-optics. This study reveals that nanodiamonds can be utilized for nonlinear optics by manipulating the nonlinear response of glasses. The experiments demonstrate a reduction in the nonlinear refractive index of materials containing nanodiamonds, providing a guideline for future research on negative nonlinearity fibers.
Article
Physics, Multidisciplinary
Alexander Demuth, Robin Camphausen, Alvaro Cuevas, Nick F. Borrelli, Thomas P. Seward, Lisa Lamberson, Karl W. Koch, Alessandro Ruggeri, Francesca Madonini, Federica Villa, Valerio Pruneri
Summary: This work demonstrates the potential for quantum light transport using a phase separated glass Anderson localization optical fiber, enabling quantum imaging and communication applications. The results show that spatial correlations between photon pairs are preserved after propagation, making the proposed fiber an effective platform for quantum imaging and communication.
COMMUNICATIONS PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Vittorino Lanzio, Gregory Telian, Alexander Koshelev, Paolo Micheletti, Gianni Presti, Elisa D'Arpa, Paolo De Martino, Monica Lorenzon, Peter Denes, Melanie West, Simone Sassolini, Scott Dhuey, Hillel Adesnik, Stefano Cabrini
Summary: The combination of electrophysiology and optogenetics has led to the development of a highly scalable neural probe that overcomes spatial limitations of nanophotonic circuits, allowing for a significant increase in sensor density. This advancement was achieved through a novel strategy of coupling only one waveguide to multiple optical ring resonators as passive nanophotonic switches.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Energy & Fuels
Nima Talebzadeh, Paul G. O'Brien
Summary: Hybrid solar lighting systems supplement conventional indoor lighting with solar light using optic cables to reduce building energy consumption, and the efficiency of the system can be improved by harnessing the nonvisible portion of sunlight to generate electric power.
Article
Chemistry, Physical
Priyanka Sehrawat, R. K. Malik, R. Punia, Sanjeev Maken, Neelam Kumari
Summary: In this study, a new set of white-emitters BaLa2ZnO5:Dy3+ nanomaterials were fabricated using an inexpensive and energy-saving urea-aided-combustion route. The nanomaterials exhibited white-luminance with bluish and golden bands under 355 nm energization. The optimal nanopowder showed fine photometric characteristics, making it a promising candidate for various applications including high-performance cool-wLEDs, lasers, indoor-cultivation, sensors, and photovoltaic cells.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Optics
Alessio Stefani, Jonathan Henry Skelton, Alessandro Tuniz
Summary: The study investigated antiresonant dielectric waveguides made of thermoplastic polyurethane, which have a hollow-core structure and high flexibility for millimeter-wave manipulation with low losses in the sub-terahertz transmission bands. The experiments compared one-tube and six-tube geometries, showing that the six-tube waveguide outperforms at smaller bend radii but may experience transmission drops at specific frequencies compared to the one-tube waveguide at larger bend radii.
Article
Optics
Tong-Tong Bai, Zhe-Yan Dong, Ming-Yang Chen
Summary: A THz hollow-core Bragg waveguide with discontinuous support bridges in both radial and axial directions is proposed, and its influence on transmission loss is demonstrated numerically. The proposed waveguide exhibits much lower confinement loss compared to the Bragg waveguide with conventional support bridges. A fabricated waveguide sample confirms the simulation results, with the transmission loss mainly determined by the absorption loss of the waveguide material used in the experiment.
Article
Optics
Foued Amrani, Jonas H. Osorio, Frederic Delahaye, Fabio Giovanardi, Luca Vincetti, Benoit Debord, Frederic Gerome, Fetah Benabid
Summary: The design of hollow-core photonic crystal fibres with hybrid-lattice cladding significantly reduces confinement loss and preserves single-mode operation, showing potential for next-generation optical fibres.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Optics
Pascal Hanzi, Benoit Sierro, Zhixin Liu, Valerio Romano, Anupamaa Rampur, Alexander M. Heidt
Summary: The recent development of fiber supercontinuum (SC) sources with ultra-low noise levels has significantly advanced various research topics. However, satisfying the demands for maximum spectral bandwidth and minimum noise simultaneously remains a challenge. This study proposes a hybrid approach that utilizes two separate fibers optimized for nonlinear temporal compression and spectral broadening, respectively, providing new design flexibility and significant performance improvements. The results show that hybrid all-normal dispersion (ANDi) highly nonlinear fibers (HNLF) achieve broad spectral bandwidths, extremely low noise levels, and smooth spectra, making them suitable for low-noise SC sources in applications such as biophotonic imaging, coherent optical communications, and ultrafast photonics.
Article
Optics
Md Selim Habib, Abubakar Adamu, Christos Markos, Rodrigo Amezcua-Correa
Summary: The proposed hollow-core anti-resonant fiber design based on hybrid silica/silicon cladding achieves single-polarization, single-mode, and high birefringence. The optimized design shows low propagation loss and high birefringence for y-polarization, making it suitable for applications in the field of optical fiber communications.
Article
Construction & Building Technology
Lingna Serena Shi, Yun Tu, Zhenyi Liu, Jinsuo Wu, Shanchuan Yu
Summary: A parameter design method for shadowless lighting based on an array of multiple solar optical reflection (SOR) lighting systems has been developed, achieving improved illumination in the threshold zone of short freeway tunnels. The effectiveness of this shadowless lighting was verified on a two-lane freeway in China, showing a significant improvement in illuminance. To achieve shadowless lighting, the systems should be installed roadside in a staggered array, with descending heights and decreasing lateral distances from the tunnel entrance.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2023)
Article
Energy & Fuels
Siddharth Sradhasagar, Omkar Subhasish Khuntia, Srikanta Biswal, Sougat Purohit, Amritendu Roy
Summary: In this study, machine learning models were developed to predict the bandgap and its character of double perovskite materials, with LGBMRegressor and XGBClassifier models identified as the best predictors. These models were further employed to predict the bandgap of novel bismuth-based transition metal oxide double perovskites, showing high accuracy, especially in the range of 1.2-1.8 eV.
Article
Energy & Fuels
Wei Shuai, Haoran Xu, Baoyang Luo, Yihui Huang, Dong Chen, Peiwang Zhu, Gang Xiao
Summary: In this study, a hybrid model based on numerical simulation and deep learning is proposed for the optimization and operation of solar receivers. By applying the model to different application scenarios and considering multiple performance objectives, small errors are achieved and optimal structure parameters and heliostat scales are identified. This approach is not only applicable to gas turbines but also heating systems.
Article
Energy & Fuels
Mubashar Ali, Zunaira Bibi, M. W. Younis, Muhammad Mubashir, Muqaddas Iqbal, Muhammad Usman Ali, Muhammad Asif Iqbal
Summary: This study investigates the structural, mechanical, and optoelectronic properties of the BaCuF3 fluoroperovskite using the first-principles modelling approach. The stability and characteristics of different cubic structures of BaCuF3 are evaluated, and the alpha-BaCuF3 and beta-BaCuF3 compounds are found to be mechanically stable with favorable optical properties for solar cells and high-frequency UV applications.
Article
Energy & Fuels
Dong Le Khac, Shahariar Chowdhury, Asmaa Soheil Najm, Montri Luengchavanon, Araa mebdir Holi, Mohammad Shah Jamal, Chin Hua Chia, Kuaanan Techato, Vidhya Selvanathan
Summary: A novel recycling system is proposed in this study to decompose and reclaim the constituent materials of organic-inorganic perovskite solar cells (PSCs). By utilizing a one-step solution process extraction approach, the chemical composition of each layer is successfully preserved, enabling their potential reuse. The proposed recycling technique helps mitigate pollution risks, minimize waste generation, and reduce recycling costs.
Article
Energy & Fuels
Peijie Lin, Feng Guo, Xiaoyang Lu, Qianying Zheng, Shuying Cheng, Yaohai Lin, Zhicong Chen, Lijun Wu, Zhuang Qian
Summary: This paper proposes an open-set fault diagnosis model for PV arrays based on 1D VoVNet-SVDD. The model accurately diagnoses various types of faults and is capable of identifying unknown fault types.
