Results 21 to 30 of about 494,121 (307)

Visible submicron microdisk lasers [PDF]

open access: yes, 2007
The authors describe the performance of submicron microdisk lasers fabricated within InGaP/InGaAlP quantum well material working at room temperature. The smallest lasers, with diameters of approximately 600 nm, feature ultrasmall mode volumes and exhibit
Hong, Ting   +5 more
core   +1 more source

High-power amplified spontaneous emission pulses with tunable coherence for efficient non-linear processes

open access: yesScientific Reports, 2021
We report on a detailed study of an amplified spontaneous emission source operated in a pulsed regime with particular attention paid to the influence of high-intensity chaotic temporal events on the generation of nonlinear processes. To this aim, we have
Nicolas Valero   +6 more
doaj   +1 more source

Mode stabilized terrace InGaAsP lasers on semi-insulating InP [PDF]

open access: yes, 1982
Mode stabilized terrace InGaAsP lasers have been fabricated on semi-insulating InP substrates. The fabrication involves a selective, single-step liquid phase epitaxial growth process, and a lateral Zn diffusion.
Chen, T. R.   +5 more
core   +1 more source

Fiber-laser-pumped Ti:sapphire Laser [PDF]

open access: yesConference on Lasers and Electro-Optics 2010, 2010
We report the first experimental demonstration of efficient and high-power operation of a Ti:sapphire laser pumped by a simple, compact, continuous-wave (cw) fiber-laser-based green source. The pump radiation is obtained by direct single-pass second-harmonic-generation (SHG) of a 33-W, cw Yb-fiber laser in 30-mm-long MgO:sPPLT crystal, providing 11 W ...
Samanta, G. K.   +3 more
openaire   +2 more sources

Phase-sensitive seeded modulation instability in passive fiber resonators

open access: yesCommunications Physics, 2022
Modulation instability refers to the sensitivity of dispersive, weakly nonlinear systems to small perturbations and may be used as a source of optical gain.
Florent Bessin   +5 more
doaj   +1 more source

Narrow stripe AlGaAs lasers using double current confinement [PDF]

open access: yes, 1982
Gain guided AlGaAs lasers in which the current is restricted to flow between two narrow stripes have been fabricated. The double current confinement configuration, which is fabricated by a selective meltback‐growth technique, enables the current ...
Blauvelt, H., Margalit, S., Yariv, A.
core   +1 more source

Single-shot measurement of the photonic band structure in a fiber-based Floquet-Bloch lattice

open access: yesCommunications Physics, 2021
Floquet-Bloch lattices are systems that are relatively difficult to implement in solid-state physics. Here, using a photonic lattice as an alternative, the authors experimentally observe Floquet-Bloch bands using a single-shot method which allows them to
Corentin Lechevalier   +5 more
doaj   +1 more source

Hydroxyapatite Thin Films of Marine Origin as Sustainable Candidates for Dental Implants

open access: yesPharmaceutics, 2023
Novel biomaterials with promising bone regeneration potential, derived from rich, renewable, and cheap sources, are reported. Thus, thin films were synthesized from marine-derived (i.e., from fish bones and seashells) hydroxyapatite (MdHA) by pulsed ...
Gabriela Dorcioman   +11 more
doaj   +1 more source

Large optical cavity AlGaAs buried heterostructure window lasers [PDF]

open access: yes, 1982
Large optical cavity buried heterostructure window lasers in which only the transparent AlGaAs waveguiding layers, and not the active layer, extend to the laser mirrors have been fabricated.
Blauvelt, H., Margalit, S., Yariv, A.
core   +1 more source

Multi-stabilities and symmetry-broken one-colour and two-colour states in closely coupled single-mode lasers [PDF]

open access: yes, 2014
We theoretically investigate the dynamics of two mutually coupled identical single-mode semi-conductor lasers. For small separation and large coupling between the lasers, symmetry-broken one-colour states are shown to be stable.
Amann, Andreas   +2 more
core   +2 more sources

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