Results 61 to 70 of about 52,197 (248)
, 2015 We use liquid phase exfoliation to produce dispersions of molybdenum disulphide (MoS2) nanoflakes in aqueous surfactant solutions. The chemical structures of the bile salt surfactants play a crucial role in the exfoliation and stabilization of MoS2.
Hasan, Tawfique +5 more
core +1 more source
Graphene Q-Switched Compact Yb:YAG Laser
IEEE Photonics Journal, 2015 We describe a compact Yb:YAG laser Q-switched by a graphene-based saturable absorber and pumped by a laser diode at 932 or 969 nm. The compact laser generates a maximum average output power value of 185 mW at 1032 nm with a slope efficiency value of 12%.
Serres, J. M. +10 more
openaire +4 more sources
Dynamics Simulation and Experimental Investigation of Q-Switching in a Self-Mode-Locked Semiconductor Disk Laser [PDF]
, 2022 Peng Zhang +6 more
openalex +1 more source
A review of laser and light therapy in melasma
International Journal of Women's Dermatology, 2017 Melasma is a dysregulation of the homeostatic mechanisms that control skin pigmentation and excess pigment is produced. Traditional treatment approaches with topical medications and chemical peels are commonly used but due to the refractory and recurrent
M.K. Trivedi, BS, BA +2 more
doaj +1 more source
Every Good Virtue You Ever Wanted in a Q-switched Solid-state Laser and More: Monolithic, Diode-pumped, Self-q-switched, Highly Reproducible, Diffraction-limited Nd:yag Laser [PDF]
The applications of Q-switched lasers are well known, for example, laser radar, laser remote sensing, satellite orbit determination, Moon orbit and 'moon quake' determination, satellite laser communication, and many nonlinear optics applications. Most of
Chen, Y. C., Lee, K. K.
core +1 more source
New regime of inverse saturable absorption for self-stabilizing passively mode-locked lasers [PDF]
, 2018 The reflectivity of a semiconductor saturable absorber mirror (SESAM) is generally expected to increase with increasing pulse energy. However, for higher pulse energies the reflectivity can decrease again; we call this a ‘roll-over' of the nonlinear ...
Golling, M. +7 more
core
Results in Physics, 2018 In this paper, we demonstrated passively Q-switched wavelength-tunable 1-μm fiber lasers utilizing few-layer black phosphorus saturable absorbers. The few-layer BP was deposited onto the tapered fibers by an optically driven process.
Huaqing Song +3 more
doaj +1 more source
Efficient blue generation from all-solid-state Q-switched Nd:YAG lasers
, 2002 This thesis describes work carried out at Southampton University that has been directed towards achieving high-power all-solid-state blue sources using two low-gain transitions of Nd:YAG.
Felgate, Nigel Stephen
core
Tm3+/Ho3+ codoped tellurite fiber laser
, 2008 Continuous-wave and Q-switched lasing from a Tm 3+ /Ho 3+ codoped tellurite fiber is reported. An Yb 3+ /Er 3+ -doped silica fiber laser operating at 1.6μm was used as an in-band pump source, exciting the Tm 3+ ions into the F 4 3 level.
Binks, D +4 more
core +1 more source
Generation of RF Intensity-Modulated Laser Pulses by Dual-Frequency Injection Seeding
IEEE Photonics Journal, 2018 In order to obtain high peak power RF intensity-modulated pulses for long-distance applications, a Q-switched Nd:YAG laser is injection seeded by a dual-frequency laser signal. The beat note frequency of the dual-frequency laser signal is adjusted to the
Lijun Cheng +4 more
doaj +1 more source