Results 81 to 90 of about 138,810 (343)
Q-switching and mode-locking pulse generation with graphene oxide paper-based saturable absorber
The Journal of Engineering, 2015 Q-switched and mode-locked erbium-doped fibre lasers (EDFLs) are demonstrated by using non-conductive graphene oxide (GO) paper as a saturable absorber (SA).
Sulaiman Wadi Harun +5 more
doaj +1 more source
Performance of efficient Q-switched diode-laser-pumped Nd:YAG and Ho:YLF lasers for space applications [PDF]
Solid-state lasers pumped by continuous-wave diode lasers can be Q-switched to obtain high peak power output pulses. The dependence of laser-pulse energy, average output power, peak power, and pulse width on pulse-repetition frequency in Q-switched Nd ...
Cowles, K., Hemmati, H., Marshall, W. K.
core +1 more source
Optics Express, 2020 Various two-dimensional (2D) materials show unique optical properties and excellent performance in acting as saturable absorber (SA) for demonstrating all-fiber ultra-fast lasers.
Wenfei Zhang +7 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu +10 more
wiley +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
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Atomic Layer Deposition in Transistors and Monolithic 3D Integration
Advanced Functional Materials, EarlyView.Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu +5 more
wiley +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.
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, 2018 The temperature of the semiconductor diode increases under strong light illumination whether thermoelectric cooler is installed or not, which changes the output wavelength of the laser (Lee M. S. et al., 2017). However, other characteristics also vary as
Fei, Yang-Yang +5 more
core +1 more source