Article
Optics
Jin Hong, Huimin Wen, Jiajing He, Jingquan Liu, Yaping Dan, Jens W. Tomm, Fangyu Yue, Junhao Chu, Chungang Duan
Summary: This study reports electrically pumped superlinear emission at 1.54 mu m from Er/O-doped silicon planar LEDs produced by a new deep cooling process, achieving stimulated emission at room temperature with low threshold current. The results reveal complex carrier transfer dynamics and pave the way for efficient LEDs at communication wavelengths based on rare-earth-doped silicon.
PHOTONICS RESEARCH
(2021)
Article
Nanoscience & Nanotechnology
Camila Ianhez-Pereira, Ariano De Giovanni Rodrigues, Marcio Peron Franco de Godoy
Summary: This study investigated the infrared optical emission of Er3+ doped ZnO hosts, using spray pyrolysis during thin film growth. Different molarity conditions affected the growth of the films and their optical properties. The infrared emissions were influenced by the Stark effect, which was dependent on synthesis parameters.
SCRIPTA MATERIALIA
(2021)
Article
Optics
V. V. Koltashev, B. I. Denker, B. I. Galagan, G. E. Snopatin, M. V. Sukhanov, S. E. Sverchkov, A. P. Velmuzhov, V. G. Plotnichenko
Summary: The paper discusses the characteristics of terbium-doped chalcogenide glass fiber lasers which can emit up to 150 mW of power at 5.1-5.4 μm wavelength when pumped by a thulium 1.908 μm fiber laser. The temporal dynamics of the laser's radiation and its dependence on the doping level are emphasized.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Hongfei Li, Xiaoqi Liu, Donglei Zhou, Biao Dong, Lin Xu, Xue Bai, Hongwei Song
Summary: Erbium ions (Er3+, 1.54 μm) electric pumped light sources with excellent optical properties and a simple fabrication process are urgently desired. In this work, Er3+/Yb3+ co-doped lead-halide perovskite films (Er3+/Yb3+:CsPbCl3) were prepared and used to fabricate light emitting diodes (Er-PeLEDs) with almost pure 1.54 μm emission and a peak EQE of 0.366% at 1.4 V. The strong negative thermal quenching effect and the involvement of Yb3+ ions contribute to the excellent LED properties.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Hyunseung Jung, Lucy L. Hale, Jayson Briscoe, Raktim Sarma, Ting Shan Luk, Sadhvikas J. Addamane, John L. Reno, Igal Brener, Oleg Mitrofanov
Summary: By nanostructuring low temperature grown GaAs into a highly absorbing metasurface, THz photoconductive detection with a pulsed laser at 1.55 μm is achieved, with high sensitivity and large bandwidth. The metasurface has the potential to serve as a universal ultrafast switching element for THz applications, enabling low-cost, turn-key THz systems for a variety of real-world applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Optics
Jing Liu, Flavia Artizzu, Min Zeng, Luca Pilia, Pieter Geiregat, Rik Van Deun
Summary: Lanthanide-doped nanoparticles have potential applications, but their weak absorption bands limit their emission intensity. Dye sensitization using FITC as an energy donor effectively boosts the NIR emission of Er3+. The high sensitization efficiency is attributed to the suitable size and geometry of FITC dye with its transition dipole moment near the nanoparticle surface.
PHOTONICS RESEARCH
(2021)
Article
Chemistry, Physical
Jianli He, Lin Chen, Hao Li, Jinyan Niu, Yonghong Ma
Summary: A detailed spectroscopic analysis was conducted on Er3+ doped fluorotellurite glass ceramics, which showed broader emissions and new peaks compared to precursor glass, making it a potential host material for broad band mid-infrared lasers. Analysis of XRD and SEM results revealed more Er3+ ions embedded into NaF nano-crystals, resulting in larger stimulated emission cross sections and longer lifetimes for the emissions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
R. Kabilan, M. Ashokkumar
Summary: Cu and Cr co-doped ZnO nanopowder was synthesized and annealed at different temperatures. Sample S2 exhibited the best crystallization with the least defects, while samples S1 and S3 showed impurities and lattice distortion. The nanopowders displayed wide absorption and emission bands in UV/violet, blue, and green regions, with room-temperature ferromagnetism observed in all samples.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Engineering, Electrical & Electronic
Sameer Kumar Tiwari, Anterdipan Singh, Pritam Yadav, Bibek Kumar Sonu, Rolly Verma, S. K. Rout, Ela Sinha
Summary: The synthesis of Zn1-xCuxMoO4 ceramic system was conducted through solid-state reaction, with structural, morphological, and optical properties investigated. The introduction of Cu2+ ions decreased the bandgap, making the material potentially useful in the visible region of the electromagnetic spectrum. Various characterization techniques were used to confirm the structure and properties of the materials, providing important insights for further research and applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Optics
Yongqiang Sun, Ran Yin, Jinchuan Zhang, Junqi Liu, Teng Fei, Kun Li, Kai Guo, Zhiwei Jia, Shuman Liu, Quanyong Lu, Ning Zhuo, Lijun Wang, Fengqi Liu, Shenqiang Zhai
Summary: In this article, we demonstrate a high power InP-based QCL grown by MOCVD with high characteristic temperature. The QCL with HR coating exhibits high pulsed peak power and CW output power at 293 K. The device adopts a DAU and MS design, showing a wide EL spectrum. Additionally, the device performance is insensitive to temperature change.
Article
Optics
Jun-Hong Liu, Huan Wang, Jin-Chuan Zhang, Ning Zhuo, Shen-Qiang Zhai, Jun-Qi Liu, Li-Jun Wang, Yuan Li, Shu-Man Liu, Feng-Qi Liu
Summary: This article reports a high-power quantum cascade laser (QCL) with a wavelength of 7.4 μm and a broad tuning range. Through careful design and optimization of the active region and waveguide structure, continuous-wave output powers of 1.36 W and 0.5 W at 293 K and 373 K, respectively, have been achieved, demonstrating excellent temperature stability.
Article
Optics
Junxiang Zhang, Rui Wang, Shijie Fu, Quan Sheng, Wenxin Xia, Lu Zhang, Wei Shi, Jianquan Yao
Summary: This paper proposes and demonstrates a novel pump scheme for achieving erbium-doped fluoride fiber lasers at 2.8 μm in the mid-infrared region. The scheme efficiently recycles ions on the lower laser level through excited-state absorption, leading to enhanced laser efficiency. Experimental results show promising output performance for high-power, high-efficiency erbium-doped fiber lasers at 2.8 μm.
Article
Environmental Sciences
Mahendra Kumar Gora, Arvind Kumar, Sanjay Kumar, Pankaj Kumar Maheshwari, Dinesh Patidar, Satya Narain Dolia, Rishi Kumar Singhal
Summary: Polycrystalline Zn1-xCuxO (x = 0.0, 0.02, and 0.05) samples were prepared using the solid-state reaction procedure. The inclusion of Cu ions in the ZnO hexagonal wurtzite structure was confirmed by X-ray diffraction patterns. The morphology study revealed transformation with Cu doping. X-ray photoelectron spectroscopy indicated the presence of oxygen vacancies in the Cu-doped samples. The magnetization measurements showed room-temperature ferromagnetic behavior in the Cu-doped samples. The photoluminescence and ultraviolet spectroscopic measurements revealed the influence of Cu doping on the band gap of ZnO.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Optics
B. Denker, B. Galagan, V. V. Koltashev, V. G. Plotnichenko, G. E. Snopatin, M. Sukhanov, S. E. Sverchkov, A. P. Velmuzhov
Summary: The paper describes a chalcogenide glass fiber laser that operates at a wavelength that cannot be achieved by oxide and fluoride rare-earth doped fibers. The laser has a selenide core doped with Tb3+ ions and an undoped sulfide cladding, and is pumped by a Tm3+ fiber laser. It achieves a high power output in the 5.20-5.28 mu m spectral band.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Lu Zhang, Junxiang Zhang, Quan Sheng, Shijie Fu, Wei Shi, Jianquan Yao
Summary: This study demonstrates the efficient generation of a 1.7 μm laser using commercially available silica Tm-doped fiber. By utilizing a bidirectional pump at 1570 nm and optimizing the length of the gain fiber, high power output and reduced signal light re-absorption loss were achieved. The experimental results show that a maximum output power of 5.92 W at 1720 nm was obtained, with a slope efficiency of 64% relative to the launched pump power.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
L. Zur, C. Armellini, S. Belmokhtar, A. Bouajaj, E. Cattaruzza, A. Chiappini, F. Coccetti, M. Ferrari, F. GoneIla, G. C. Righini, E. Trave, A. Vomiero, F. Enrichi
Article
Geochemistry & Geophysics
Sabrina Nazzareni, Fabrizio Nestola, Vittorio Zanon, Luca Bindi, Enrico Scricciolo, Maurizio Petrelli, Marco Zanatta, Gino Mariotto, Gabriele Giuli
Article
Materials Science, Multidisciplinary
Rim Faraj, Francois Goutaland, Nadege Ollier, Elti Cattaruzza, Francis Vocanson
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Arun Kumar, Yulia Kostikov, Marco Zanatta, Gian Domenico Soraru, Beate Orberger, Gilbert Daniel Nessim, Gino Mariotto
DIAMOND AND RELATED MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Yassine El Mendili, Antanas Vaitkus, Andrius Merkys, Saulius Grazulis, Daniel Chateigner, Fabrice Mathevet, Stephanie Gascoin, Sebastien Petit, Jean-Francois Bardeau, Marco Zanatta, Maria Secchi, Gino Mariotto, Arun Kumar, Michele Cassetta, Luca Lutterotti, Evgeny Borovin, Beate Orberger, Patrick Simon, Bernard Hehlen, Monique Le Guen
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2019)
Article
Chemistry, Physical
Gloria Zaccariello, Michele Back, Alvise Benedetti, Patrizia Canton, Elti Cattaruzza, Hiroaki Onoda, Antonella Glisenti, Alessandro Alimonti, Beatrice Bocca, Pietro Riello
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2019)
Article
Engineering, Electrical & Electronic
Fabrizio Palma, Elti Cattaruzza, Pietro Riello
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2019)
Article
Chemistry, Physical
Francesca Visentin, Alessandro Galenda, Monica Fabrizio, Simone Battiston, Nicola Brianese, Rosalba Gerbasi, Valentina Zin, Naida El Habra
APPLIED SURFACE SCIENCE
(2019)
Article
Energy & Fuels
Vikash Kumar, Elisa Artegiani, Arun Kumar, Gino Mariotto, Fabio Piccinelli, Alessandro Romeo
Article
Materials Science, Coatings & Films
Francesca Visentin, Naida El Habra, Monica Fabrizio, Nicola Brianese, Rosalba Gerbasi, Luca Nodari, Valentina Zin, Alessandro Galenda
SURFACE & COATINGS TECHNOLOGY
(2019)
Article
Multidisciplinary Sciences
Davide Sega, Giuseppe Ciuffreda, Gino Mariotto, Barbara Baldan, Anita Zamboni, Zeno Varanini
SCIENTIFIC REPORTS
(2019)
Article
Materials Science, Multidisciplinary
A. N. Barbosa, N. S. Figueroa, M. Giarola, G. Mariotto, F. L. Freire
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Chemistry, Physical
R. Milazzo, M. Linser, G. Impellizzeri, D. Scarpa, M. Giarola, A. Sanson, G. Mariotto, A. Andrighetto, A. Carnera, E. Napolitani
APPLIED SURFACE SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Jefferson F. D. F. Araujo, Tahir, Soudabeh Arsalani, Fernando L. Freire Jr, Gino Mariotto, Marco Cremona, Leonardo A. F. Mendoza, Cleanio Luz-Lima, Quaid Zaman, Tommaso Del Rosso, Oswaldo Baffa, Antonio C. Bruno
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2020)
Article
Materials Science, Ceramics
A. Rahman, G. Mariotto, E. Cattaruzza, E. Trave, F. Gonella, A. Quaranta
Summary: The study investigates the modification of silica network structure and silver clustering process during external treatments in ion-exchanged silicate glasses. External treatments result in adjustments to the silica network microstructure, including changes in polymerizing units and appearance/disappearance of non-bridging oxygen centers.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)