Results 1 to 10 of about 1,418,240 (260)

Design and investigation of a low-threshold organic laser diode using mixed-order DFB cavities [PDF]

open access: yesEPJ Web of Conferences, 2022
In this work, we experimentally and theoretically investigate the optical and electrical optimization of an OLED associated to a mixed-order DFB cavity.
El Droubi Yara   +4 more
doaj   +1 more source

A Review on Biphasic Calcium Phosphate Materials Derived from Fish Discards

open access: yesNanomaterials, 2021
This review summarizes the results reported on the production of biphasic calcium phosphate (BCP) materials derived from fish wastes (i.e., heads, bones, skins, and viscera), known as fish discards, and offers an in-depth discussion on their promising ...
Liviu Duta   +2 more
doaj   +1 more source

Broadband and fast frequency chirped FTIR spectroscopy with strongly modulated quantum cascade lasers [PDF]

open access: yesEPJ Web of Conferences, 2023
While the opportunity to perform fast and broadband spectroscopy in the Mid-IR portion of the electromagnetic spectrum is very appealing, it requires the use of compatible light-sources.
Cargioli Alessio   +7 more
doaj   +1 more source

Digital in-line holography with a spatially partially coherent beam [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2011
We propose in this paper an analytical solution to the problem of scalar diffraction of a partially coherent beam by an opaque disk. This analytical solution is applied in digital in-line holography of particles. We demonstrate that the reconstruction by
Coëtmellec S.   +4 more
doaj   +1 more source

Kaolinite Thin Films Grown by Pulsed Laser Deposition and Matrix Assisted Pulsed Laser Evaporation

open access: yesNanomaterials, 2022
In this work, thin films of lamellar clays were deposited by laser techniques (matrix assisted pulsed laser evaporation (MAPLE) and pulsed laser deposition (PLD)). The focus of this paper is the optimization of deposition parameters for the production of
Luminita Nicoleta Dumitrescu   +9 more
doaj   +1 more source

Femtosecond tunable solitons up to 4.8  µm using soliton self-frequency shift in an InF3 fiber

open access: yesScientific Reports, 2022
A tunable ultrashort soliton pulse source reaching up to 4.8 µm is demonstrated based on a 2.8 µm femtosecond fiber laser coupled to a zirconium fluoride fiber amplifier followed by a small core indium fluoride fiber.
Jean-Christophe Gauthier   +5 more
doaj   +1 more source

Orbiting and In-Situ Lidars for Earth and Planetary Applications

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
At NASA Goddard Space Flight Center, we have been developing spaceborne lidar instruments for space sciences. We have successfully flown several missions in the past based on mature diode pumped solid-state laser transmitters.
Anthony W. Yu   +21 more
doaj   +1 more source

High-Sensitivity Ammonia Sensors with Carbon Nanowall Active Material via Laser-Induced Transfer

open access: yesNanomaterials, 2022
Ammonia sensors with high sensitivity, reproducible response, and low cost are of paramount importance for medicine, i.e., being a biomarker to diagnose lung and renal conditions, and agriculture, given that fertilizer application and livestock manure ...
Alexandra Palla-Papavlu   +3 more
doaj   +1 more source

A laboratory platform for studying rotational dust flows in a plasma crystal irradiated by a 10 keV electron beam

open access: yesScientific Reports, 2023
A novel laboratory platform has been designed and built for the irradiation of a plasma crystal (PC) with an electron beam (e-beam) having an energy around 10 keV and a current of tens of milliamperes.
D. Ticoş   +4 more
doaj   +1 more source

Bioinstructive Micro-Nanotextured Zirconia Ceramic Interfaces for Guiding and Stimulating an Osteogenic Response In Vitro

open access: yesNanomaterials, 2020
Osseous implantology’s material requirements include a lack of potential for inducing allergic disorders and providing both functional and esthetic features for the patient’s benefit.
Livia Elena Sima   +6 more
doaj   +1 more source

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