Results 61 to 70 of about 11,012 (313)
A 1625 nm Q‐Switched All‐Fiber Laser
Advanced Photonics Research, 2022 A Q‐switched all‐fiber Er‐doped laser operated at a wavelength up to 1625 nm is proposed and demonstrated. A self‐developed, element hybridization (Al, Ge, La, P, and Er in the core, Si and P in the cladding region) glass fiber with gain extended to U ...
Huihui Cheng +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen +15 more
wiley +1 more source
Clinical, Cosmetic and Investigational Dermatology, 2023 Maha Fathy Elmasry,1 Moemena Maher Fathi Khalil,2 Ashraf Badawi,3,4 Naglaa Sameh Zaki,1 Aya Fahim1 1Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt; 2Department of Dermatology, Quesna Central Hospital, Menofia, Egypt ...
Elmasry MF +4 more
doaj
High-Peak-Power Acousto-Optically Q-Switched Er:Y2O3 Ceramic Laser at ∼2.7 μm
IEEE Photonics Journal, 2017 We report on a high-peak-power acousto-optically Q-switched Er:Y2O3 ceramic laser operating at room temperature. Stable pulses with a duration of 41–190 ns (FWHM) are generated at approximately 2.7 μm with the repetition rate varying from 0.
X. J. Ren +5 more
doaj +1 more source
High-power slab-based Tm:YLF laser for in-band pumping of Ho:YAG
, 2008 Several remote sensing applications require pulsed sources in the mid-infrared spectral regime with high average powers and good beam quality. Ho:YAG lasers have a number of attractive features for high power generation at 2.1 microns, either for direct ...
J. I. Mackenzie +7 more
core +1 more source
Stability of Q-switched 2 μm lasers [PDF]
, 2020 Q-switched lasers operating at wavelengths around 2 µm have many applications including materials processing and LIDAR. However, the low gain of the quasi-three-level gain media available at 2 µm can lead to problems with pulse-to-pulse fluctuations in ...
Stothard, David J. M. +3 more
core
Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene
Advanced Functional Materials, EarlyView.Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus +8 more
wiley +1 more source
Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers
Advanced Functional Materials, EarlyView.We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar +6 more
wiley +1 more source
SPECTRAL AND TEMPORAL DYNAMICS IN ACTIVELY Q-SWITCHED ERBIUM-DOPED FIBER LASERS [PDF]
, 2017 "In the present dissertation work, the spectral and temporal features of actively Q-switched erbium-doped fiber lasers are reported. These features were investigated for two common laser configurations: for the linear Fabry-Pérot cavity with a pair of ...
Josue Minguela
core
Double-clad structures and proximity coupling for diode-bar-pumped planar waveguide lasers
, 2000 We report, for the first time, fabrication of double-clad planar waveguide structures and their use for multiwatt, diode-bar-pumped, planar waveguide lasers based on Nd3+ and Yb3+-doped YAG.
Shepherd, D.P. +3 more
core +1 more source