Results 111 to 120 of about 154,423 (300)

Solar-Pumped Ce:Nd:YAG Laser Amplifier Design

Energies
A solar-pumped Ce:Nd:YAG laser amplifier design is proposed to address the challenge of scaling output power in solar-pumped laser oscillators while maintaining high beam quality.
Joana Almeida, Bruno D. Tibúrcio, Hugo Costa, Cláudia R. Vistas, Dawei Liang   +4 more
doaj   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy, Charlie J. Patrickson, Thomas Poirier, James H. Edgar, Bruno Lopez‐Rodriguez, Viktor Ivády, Isaac J. Luxmoore   +6 more
wiley   +1 more source

Studies of new media radiation induced laser [PDF]

Various lasants were investigated especially, 2-iodohepafluoropropane (i-C3F7I) for the direct solar pumped lasers. Optical pumping of iodine laser was achieved using a small flashlamp.
Han, K. S., Hwang, I. H., Raju, S. R., Shiu, Y. J., Tabibi, B.   +4 more
core   +1 more source

Three‐Dimensional Hierarchical Nanowire‐Networks with Deep‐Focus Tolerance and Adhesion Robustness for Harsh‐Environment SERS Sensing

Advanced Functional Materials, EarlyView.
A 3D nanowire‐network SERS substrate with robust adhesion is developed, featuring pronounced z‐direction optical activity, ultralow detection limit (1.5 × 10−13 M), and excellent signal uniformity (RSD < 10%). Enabled by enhanced light scattering, increased optical density of states, and structural reinforcement, the substrate demonstrates stable, high‐
Jinglai Duan, Wentao Wang, Xiu Liang, Yongliang Zhang, Jie Liu, Yu Bai, Dangyuan Lei   +6 more
wiley   +1 more source

20 kW Monolithic Fiber Amplifier With Directly Dual-Wavelength Laser Diodes Counter Pumping

IEEE Photonics Journal
In this study, we demonstrate a high-power ytterbium-doped fiber laser (YDFL) based on laser diodes (LDs) directly pumping scheme. Tandem pumping and LD direct pumping are two common schemes for generating high-brightness laser output in YDFL.
Xiangming Meng, Fengchang Li, Jinbao Chen, Xiaoming Xi, Baolai Yang, Peng Wang, Zhiyong Pan, Zhiping Yan, Hanwei Zhang, Xiaolin Wang, Zefeng Wang   +10 more
doaj   +1 more source

Free electron lasers for transmission of energy in space [PDF]

A one-dimensional resonant-particle model of a free electron laser (FEL) is used to calculate laser gain and conversion efficiency of electron energy to photon energy.
Catella, G. C., Hiddleston, H. R., Segall, S. B.   +2 more
core   +1 more source

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

フォトニックバンドギャップ導波路による利得制御を用いた単一周波数ファイバーレーザー光源の開発 [PDF]

, 2016
For the applications at the yellow-orange color region, such as laser guide star, laser coagulation, and spectroscopy,fiber laser sources at the wavelength range of 1150 nm-1200 nm are alternatively investigated because of no gain medium at the visible ...
Mingchen Chen, 陳 明晨
core   +2 more sources

Exciton‐Polaritons in Nanoscale Metal‐Organic Frameworks: A Platform for the Reversible Modulation of Strong Light‐Matter Coupling via the Chemical Environment

Advanced Functional Materials, EarlyView.
Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez, Laura Caliò, Mauricio E. Calvo, Juan F. Galisteo‐López, Jesús Hernández‐Saz, Miriam Herrera‐Collado, Carolina Carrillo‐Carrión, Hernán Míguez   +7 more
wiley   +1 more source

2.05 μm high-energy thulium-doped fibre amplifier based on backward pumping

Scientific Reports
We demonstrate a thulium (Tm)-doped fibre amplifier using a Ho: GdVO4 solid-state laser as the master oscillator operating at 2048.53 nm. In experiment, a novel spatial coupling system was used, combining a single lens with a curved end cap to simplify ...
Chao Yang, Bowen Zheng, Junyu Huang, Xin Li, Yongliang Li, Keyan Dong, Youlun Ju   +6 more
doaj   +1 more source