Results 21 to 30 of about 1,271,779 (368)

Dual wavelength digital holography for 3D particle image velocimetry [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2015
A multi-exposure digital in-line hologram of a moving particle field is recorded by two different wavelengths and at different times. As a result, during the reconstruction step, each hologram can be independently and accurately reconstructed for each ...
Grare S.   +5 more
doaj   +1 more source

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

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

Passively mode-locked semiconductor lasers and their applications [PDF]

open access: yes, 2008
In this paper we present some characterizations of passively mode-locked semiconductor lasers. These lasers are multimode and they exhibit a modulation of their output power even though they are DC-biased.
Frederic Surre   +5 more
core   +1 more source

Rod Laser – The first laser was a rod laser [PDF]

open access: yesLaser Technik Journal, 2005
Laser technology is relatively young. The first laser was built in 1960 by Maiman at AT&T Labs in the USA. It was a rod-shaped ruby laser, this arrangement having been chosen for its favourable symmetry (Fig. 1). Starting from this device, the technology of solid-state lasers developed rapidly.
Hans Amler, Josef Thumbs
openaire   +1 more source

Laser optomechanics [PDF]

open access: yesScientific Reports, 2015
AbstractCavity optomechanics explores the interaction between optical field and mechanical motion. So far, this interaction has relied on the detuning between a passive optical resonator and an external pump laser. Here, we report a new scheme with mutual coupling between a mechanical oscillator supporting the mirror of a laser and the optical field ...
Gerke, Stephen   +5 more
openaire   +6 more sources

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

Nitrites Detection with Sensors Processed via Matrix-Assisted Pulsed Laser Evaporation

open access: yesNanomaterials, 2022
This work is focused on the application of a laser-based technique, i.e., matrix-assisted pulsed laser evaporation (MAPLE) for the development of electrochemical sensors aimed at the detection of nitrites in water.
Cristina Craciun   +7 more
doaj   +1 more source

Facile Fabrication of Hybrid Carbon Nanotube Sensors by Laser Direct Transfer

open access: yesNanomaterials, 2021
Ammonia is one of the most frequently produced chemicals in the world, and thus, reliable measurements of different NH3 concentrations are critical for a variety of industries, among which are the agricultural and healthcare sectors.
Anca F. Bonciu   +4 more
doaj   +1 more source

Numerical simulation and design of semiconductor quantum dot-based lasers and amplifiers [PDF]

open access: yes, 2013
Numerical simulation and design of semiconductor quantum dot-based lasers and ...
Xu, Tianhong
core   +1 more source

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