Terahertz four-wave mixing spectroscopy for study of ultrafast dynamics in a semiconductor optical amplifier [PDF]
, 1993 Ultrafast dynamics in a 1.5-µm tensile-strained quantum-well optical amplifier has been studied by highly nondegenerate four-wave mixing at detuning frequencies up to 1.7 THz.
Dawson, Jay W. +5 more
core +1 more source
Solution-processed two-dimensional materials for ultrafast fiber lasers (invited)
Nanophotonics, 2020 Since graphene was first reported as a saturable absorber to achieve ultrafast pulses in fiber lasers, many other two-dimensional (2D) materials, such as topological insulators, transition metal dichalcogenides, black phosphorus, and MXenes, have been ...
Fu Bo +7 more
doaj +1 more source
CH3NH3PbI3 Perovskite Nanorods Saturable Absorber for Stable Ultra-Fast Laser
IEEE Photonics Journal, 2022 In this paper, we propose a novel ultrafast laser with nanostructure CH3NH3PbI3 nanorods, yielding a higher modulation depth and lower optical loss. Our experiment is performed through nanopatterned CH3NH3PbI3 rods and an all-solid-state passive mode ...
Tenghu Cheng +6 more
doaj +1 more source
Ultrafast harmonic mode-locking of monolithic compound-cavity laser diodes incorporating photonic-bandgap reflectors [PDF]
, 2001 We present the first demonstration of reproducible harmonic mode-locked operation from a novel design of monolithic semiconductor laser comprising a compound cavity formed by a 1-D photonic-bandgap (PBG) mirror.
Avrutin, E A +5 more
core +2 more sources
Optimizing type-I polarization-entangled photons [PDF]
, 2009 Optical quantum information processing needs ultra-bright sources of entangled photons, especially from synchronizable femtosecond lasers and low-cost cw-diode lasers.
Goggin, Michael +2 more
core +1 more source
Ultrafast Laser Welding of Silicon
Advanced Photonics Research, 2023 While ultrafast laser welding is an appealing technique for bonding transparent workpieces, it is not applicable for joining silicon samples due to nonlinear propagation effects which dramatically diminish the possible energy deposition at the interface.
Maxime Chambonneau +4 more
openaire +3 more sources
1.9 μm Few-Cycle Pulses Based on Multi-Thin-Plate Spectral Broadening and Nonlinear Self-Compression
IEEE Photonics Journal, 2021 In attosecond and strong-field physics, the acquisition of few-cycle laser sources open up a new area. We report a nonlinear pulse compression technology combining multi-thin-plate spectral broadening and nonlinear self-compression that generates a 0.52 ...
Beijie Shao +6 more
doaj +1 more source
Wideband saturable absorption in few-layer molybdenum diselenide (MoSe₂) for Q-switching Yb-, Er- and Tm-doped fiber lasers. [PDF]
, 2015 We fabricate a free-standing molybdenum diselenide (MoSe2) saturable absorber by embedding liquid-phase exfoliated few-layer MoSe2 flakes into a polymer film.
Hasan, T. +6 more
core +4 more sources
Ultrafast laser synthesis of zeolites
Advanced MaterialsResearch has demonstrated that zeolite nucleation and growth can be controlled by fine-tuning chemical composition, temperature, and pressure, resulting in structures with diverse porosities and functionalities. Nevertheless, current energy delivery methods lack the finesse required to operate on the femto- and picosecond timescales of silica ...
Galioglu, Sezin +11 more
openaire +3 more sources
Avant-Garde Ultrafast Laser Writing [PDF]
MATEC Web of Conferences, 2013 Ultrafast laser processing of transparent materials reveals new phenomena. Reviewed, are recent demonstrations of 5D optical memory, vortex polarization and Airy beam converters employing self-assembled nanostructuring, ultrafast laser calligraphy and polarization writing control using pulses with tilted front.
Kazansky, P.G. +2 more
openaire +3 more sources