Editorial Material
Chemistry, Physical
Pawel E. Tomaszewski
Summary: The comment highlights a significant error in the crystallographic part of the paper, pointing out the correct crystal type and chemical formula as Bi25FeO39:Ni,Ti. Due to doping, the sample was found to contain two slightly different phases of the sillenite type.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Multidisciplinary Sciences
Liang Shi, Beichen Li, Changil Kim, Petr Kellnhofer, Wojciech Matusik
Summary: The ability to present three-dimensional scenes with continuous depth sensation has a profound impact on various fields. Computer-generated holography enables high-resolution 3D projection, but existing methods have limitations. We demonstrate a deep-learning-based pipeline for real-time 3D hologram synthesis from a single RGB-depth image. Our memory-efficient CNN runs on consumer-grade GPUs and mobile devices, promising real-time performance in future AR/VR headsets.
Article
Optics
Dingchen Wang, Li Pei, Jingjing Zheng, Wenxuan Xu, Jianshuai Wang, Yujing Song, Tigang Ning, Jing Li
Summary: This paper presents a numerical simulation of a bismuth-doped fiber amplifier based on bismuth-aluminum-fluorine co-doping fiber. The effects of different pump powers, signal powers, doping concentrations, and pump structures on the gain and noise figure of the amplifier are investigated. Experimental results are used to verify the applicability of the three-energy amplification system model to the bismuth-doped fiber amplifier. The findings show that the amplifier achieves a gain of more than 25 dB at a pump power of 500 mW and a signal input power of -10 dBm, with a noise figure of around 3.2 dB.
Article
Engineering, Electrical & Electronic
Aleksandr Khegai, Yan Ososkov, Sergei Firstov, Konstantin Riumkin, Sergey Alyshev, Alexander Kharakhordin, Vladimir Khopin, Fedor Afanasiev, Alexey Guryanov, Mikhail Melkumov
Summary: Global data traffic growth poses challenges for telecom companies to increase data transmission rate. Expanding the spectral range of DWDM systems by including the O-band and E-band can increase optical links capacity. Research shows that Bi-doped fiber amplifiers operating in the O- and E-bands can achieve the widest gain spectrum.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Optics
Yanyan LI, Xun Deng, Shijie Fu, Quan Sheng, Chaodu Shi, Junxiang Zhang, Lu Zhang, Wei Shi, Jianquan Yao
Summary: A high-power and high-efficiency single-frequency fiber laser operating at 1064 nm was successfully demonstrated using a distributed Bragg reflector (DBR) all-silica-fiber configuration. A single-frequency laser with an output power of 642 mW and slope efficiency of 66.4% was achieved from a commercially available Yb3+-doped silica fiber with a length of 1.2 cm. This represents the highest power and efficiency obtained from a DBR all-silica fiber laser. The findings of this study contribute to the development of high-power, robust, and cost-effective single-frequency Yb3+-doped all-silica fiber lasers.
Correction
Multidisciplinary Sciences
Liang Shi, Beichen Li, Changil Kim, Petr Kellnhofer, Wojciech Matusik
Summary: The correction to the paper has been published. Please refer to the link for more information.
Article
Physics, Condensed Matter
G. A. Wubetu, V Marinova, E. Goovaerts
Summary: The study investigates the charge carriers tunneling within the forbidden band of Cr-doped Bi12SiO20 using PIA spectroscopy, revealing the relaxation dynamics of the carriers and their temperature-independent behavior in charge transport processes. The electro-optical descriptions are explained in terms of the fast and slow time decays of the charge carriers tunneling within the localized states.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Optics
Zhangni Qi, Taoce Yin, Xiaogang Jiang, Feihong Chen, Sailing He
Summary: In this study, a linearly polarized single-longitudinal-mode ytterbium-doped fiber laser with high PER and narrow linewidth was presented. The high performance laser was achieved by utilizing the polarization evolution effect and a high-performance beam splitter. Additionally, high optical signal-to-noise ratio and slope efficiency were achieved.
Article
Physics, Multidisciplinary
Nick Traeger, Pawel Gruszecki, Filip Lisiecki, Felix Gross, Johannes Foerster, Markus Weigand, Hubert Glowinski, Piotr Kuswik, Janusz Dubowik, Gisela Schuetz, Maciej Krawczyk, Joachim Graefe
Summary: The concept of space-time crystals (STC) was successfully transferred to magnons and experimentally demonstrated at room temperature. The driven SIC was achieved by strong microwave pumping of a permalloy (Py) stripe, and the interaction between magnons and STC led to the formation of a magnonic band structure. The experimental results showed ultrashort spin waves generation and lattice scattering due to this interaction, which can't be described by classical dispersion relations for linear spin wave excitation.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Yu Zhang, Meng-ting Wu, Ming-yu Tang, Feng-ying Ma, Er-jun Liang, Yan-li Du, Zhi-young Duan, Qiao-xia Gong
Summary: Single-shot FINCH technology utilizes three dual-lens patterns mixed into a phase mask to achieve real-time imaging of dynamic objects.
Article
Materials Science, Ceramics
V. Murali Krishna, S. K. Mahamuda, P. Sailaja, K. Swapna, M. Venkateswarlu, Ch B. Annapurna Devi, A. S. Rao
Summary: In this study, Nd3+ ion-doped Oxy-Fluoro Boro Tellurite (OFBT) glasses were prepared and their luminescence characteristics were investigated. The results showed that OFBTNd10 glass had a high stimulated emission cross-section and could potentially function as a good optical gain material for producing laser at around 1064 nm.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Instruments & Instrumentation
Liufeng Li, Jia Wang, Jin Bi, Tao Zhang, Jiankang Peng, Yunlin Zhi, Lisheng Chen
Summary: The study involves the development of cavity-stabilized ultra-stable optical oscillators, utilizing techniques such as ultra-low-loss silica mirrors and wedged angle electro-optic crystals to achieve long-term stability and reduce residual amplitude modulation.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Engineering, Multidisciplinary
Hilden Panu, Rajamaki Timo, Fordell Thomas, Jarkko Makkonen, Sergei Alyshev, Alexandr Kharakhordin, Sergei Firstov
Summary: The article presents a method for measuring HCl in a cleanroom environment using a cavity ring-down analyser, along with data on HCl adsorption to different materials. Additionally, a new approach for HCl detection using multipass photo-acoustic spectroscopy based on a light source operating at 1742 nm is introduced, with preliminary results showing sub-ppb detection levels are achievable even for HCl.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2021)
Article
Computer Science, Artificial Intelligence
David Blinder, Takashi Nishitsuji, Peter Schelkens
Summary: The study proposes a technique for efficiently calculating holograms of 3D line segments using analytical solutions and efficiently computable approximations suitable for massively parallel computing architectures, achieving a 70-fold speedup on GPUs.
IEEE TRANSACTIONS ON IMAGE PROCESSING
(2021)
Article
Materials Science, Ceramics
Pawe E. Tomaszewski
Summary: The comments point out a significant error in the crystallographic part of the commented papers, stating that the studied nanocrystals are actually of the sillenite type, not BiFeO3 as stated in the original papers.
CERAMICS INTERNATIONAL
(2022)
