Correction
Optics
Ryohei Morita, Takuya Inoue, Menaka De Zoysa, Kenji Ishizaki, Susumu Noda
Summary: A correction to this paper has been published.
Article
Thermodynamics
Feng Wang, Jiaming Wu, Zichang Lin, Haoxiang Zhang, Bing Xu
Summary: Hydraulic drives are popular but often suffer from low energy efficiencies. This paper proposes a power-sharing electro-hydraulic actuator system with planetary gearsets to achieve higher efficiency in power and size.
Article
Optics
Ziqun Niu, Tianli Feng, Kejian Yang, Tao Li, Jia Zhao, Guiqiu Li, Dechun Li, Shengzhi Zhao, Xiantao Jiang, Han Zhang, Wenchao Qiao, Hongwei Chu, Jie Lian
Summary: This study utilized MXene Ti3C2Tx to fabricate a doubly Q-switched laser, achieving the shortest pulse width and highest peak power, demonstrating superior performance compared to singly Q-switched lasers.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
A. Mitrofanov, D. A. Sidorov-Biryukov, A. A. Voronin, M. M. Nazarov, P. A. Shcheglov, V. Ya Panchenko, A. M. Zheltikov
Summary: The study demonstrates a multi-compartment, power-scalable beam-line design that allows tailored terawatt field waveforms for downstream pulse compression, enabling ultrafast strong-field laser-matter interaction studies with pulse widths of a few cycles. Despite complexities in upstream nonlinear electrodynamics, field waveforms shorter than three field cycles can be delivered to the interaction site.
OPTICS COMMUNICATIONS
(2022)
Article
Optics
Kevin F. Lee, Gengji Zhou, Yu Yun, Jie Jiang, Herbert G. Winful, Martin E. Fermann
Summary: Power scaling in femtosecond lasers using anomalous dispersion waveguides has been limited by pulse collapse, a new method using phase-only pulse shaping in a stretcher fiber Bragg grating has achieved significant improvements. This technique has allowed for higher peak power pulses at both 25 MHz and 100 MHz repetition rates, combining precision with strong field physics and showing great potential for ultrafast laser sources improvement.
Article
Chemistry, Physical
Silvio C. A. de Almeida, Raphael Kruczan
Summary: Fuel cell hybrid electric vehicles (FCHEVs) are considered the most attractive long-term option for passenger cars, but barriers such as cost, durability, and hydrogen refueling infrastructure must be overcome for wider use. The study models a midsized FCHEV in ADVISOR to analyze the impact of hybridization on vehicle performance and costs, with results showing improvements in fuel economy and reduction in vehicle cost by adjusting the fuel cell stack power and number of battery modules.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Optics
Jiaying Li, Jiamei Wu, Qiang Hao, Kun Huang, Kangwen Yang, Heping Zeng
Summary: High peak power dissipative soliton resonance (DSR) with tunable wavelength and flexible repetition rate is achieved using an all polarization maintaining master oscillator power amplifier fiber laser. The system outputs DSR pulses at a fundamental repetition rate of 3.6 MHz with square-shaped temporal pulse duration of 600 ps. By adjusting the intracavity fiber filter, the center wavelength of the DSR pulse can be continuously changed from 1017 to 1042 nm. A pulse picker is used to gain another tuning freedom of repetition rate from 100 kHz to 3.6 MHz. An all-fiber amplifier is used to boost the average power to 20 W. After compression, a record pulse peak power of 1.91 MW is achieved at the repetition rate of 100 kHz with pulse duration of 55 ps.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Optics
Yiping Zhou, Xudong Li, Haobo Xu, Rongwei Fan, Deying Chen, Yugang Jiang, Renpeng Yan
Summary: This paper proposes a methodology to produce a multi-beam sub-nanosecond laser, which generates laser pulses with high energy and peak power, achieving air breakdown with four points using amplification technology and a lens array.
Review
Urology & Nephrology
Eugenio Ventimiglia, Luca Villa, Steeve Doizi, Alberto Briganti, Silvia Proietti, Guido Giusti, Francesco Montorsi, Emanuele Montanari, Olivier Traxer, Andrea Salonia
Summary: Laser lithotripsy is a main option for treating urinary stones, with thulium fiber lasers showing high ablation efficiency in laboratory studies. However, further research is needed to confirm their effectiveness as clinical evidence is still lacking.
EUROPEAN UROLOGY FOCUS
(2021)
Article
Optics
Shuailin Liu, Bin Zhang, Yuanzhuang Bu, Desheng Zhao, Xiran Zhu, Linyong Yang, Jing Hou
Summary: A novel all-fiber laser system is reported, which generates burst-mode pulses with high energy and high peak power at a GHz intra-burst repetition rate. By utilizing a double-pre-compensation structure and synchronous pumping, the system achieves uniform burst envelopes and adjustable intra-burst repetition rate. The laser system sets records for output energy and peak power with nanosecond-level burst duration, as well as the widest tuning range of the intra-burst repetition rate among reported burst-mode all-fiber lasers.
HIGH POWER LASER SCIENCE AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
H. Ahmad, S. N. Aidit, S. Ooi, M. Z. Samion, S. Wang, Y. Wang, J. K. Sahu, A. K. Zamzuri
Summary: This work presents a bismuth-doped fiber laser (BiDFL) operating in the dissipative soliton resonance (DSR) regime using a Figure-9 configuration, with a nonlinear amplifying loop mirror (NALM) to achieve high energy mode-locked pulses. The laser delivered rectangular-shaped pulses with a duration of 48 ns, repetition rate of 362 kHz, and a radio-frequency signal-to-noise ratio of more than 60 dB, achieving the highest mode-locked pulse energy at 1.3 µm known to the author.
SCIENTIFIC REPORTS
(2021)
Article
Optics
Daniel Matteo, Eric Welch, Sergei Tochitsky, Peter G. Schunemann, Shekhar Guha, Chan Joshi
Summary: This study presents a comparative analysis of AgGaSe2, GaSe, CdGeAs2, and Te for second harmonic generation (SHG) at high intensities. The results demonstrate an external energy conversion efficiency of >20% in AgGaSe2, and >5% in GaSe and CdGeAs2. However, self-focusing and multifilamentation severely limit the SHG process in CdGeAs2 and Te at such high fields.
Article
Optics
Xiaoya Ma, Jun Ye, Yang Zhang, Jiangming Xu, Liangjin Huang, Jinyong Leng, Zhiyong Pan, Pu Zhou
Summary: This study investigates the effects of output coupler reflectivity, length of phosphosilicate fiber, and pump bandwidth on high-power fiber lasers, demonstrating a low quantum defect Raman fiber laser with high power and efficiency. The findings offer a potential alternative scheme for high-power, high-efficiency fiber lasers and the suppression of thermal-induced effects.
Article
Sport Sciences
Isaac A. Nichols, Tunde K. Szivak
Summary: The study investigated the effects of hand width placement during plyometric push-ups, finding that upper body force development may be significantly impacted by hand width. Although upper body power output appears to be similar across varying hand widths, hand-width placement may impact plyometric performance measures. This study is the first to explore the effects of varying hand widths on plyometric push-up performance.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2021)
Article
Optics
A. Zingale, S. Waczynski, J. Sears, R. E. Lakis, H. M. Milchberg
Summary: This paper experimentally and simulates the effect of realistic atmospheric conditions on mid-infrared (lambda = 3.9 μm) and long-wave infrared (lambda = 10 μm) laser-induced avalanche breakdown for remote detection of radioactive material. The experimental results show that increasing turbulence levels are correlated with a reduction in the number of breakdown sites and the portion of the focal volume above the breakdown threshold. Propagation simulations through turbulence validate these measurements. In the long-wave infrared regime (lambda = 10 μm), simulations show that the avalanche threshold focal volume remains robust even in the presence of strong turbulence, with only a 50% drop over a propagation length of 0.6 km.
