Results 21 to 30 of about 6,950,236 (300)

Bright, high-repetition-rate water window soft X-ray source enabled by nonlinear pulse self-compression in an antiresonant hollow-core fibre

open access: yesLight: Science & Applications, 2021
Bright, coherent soft X-ray radiation is essential to a variety of applications in fundamental research and life sciences. To date, a high photon flux in this spectral region can only be delivered by synchrotrons, free-electron lasers or high-order ...
M. Gebhardt   +12 more
doaj   +1 more source

Optical and nanostructural insights of oblique angle deposited layers applied for photonic coatings [PDF]

open access: yesApplied Surface Science, 2020
Oblique angle deposition (OAD) is a nanostructuration method widely used to tune the optical properties of thin films. The introduction of porosity controlled by the deposition angle is used to develop the architecture of each layer and stack that enable modifying and optimizing the optical properties of the constituent layers for optimal design ...
Maudet, F.   +12 more
openaire   +3 more sources

The Boston University Photonics Center annual report 2014-2015 [PDF]

open access: yes, 2015
This repository item contains an annual report that summarizes activities of the Boston University Photonics Center in the 2014-2015 academic year. The report provides quantitative and descriptive information regarding photonics programs in education ...
The Boston University Photonics Center
core   +1 more source

Nonlinear Optical Studies of Gold Nanoparticle Films

open access: yesNanomaterials, 2019
Gold films are widely used for different applications. We present the results of third- and high-order nonlinear optical studies of the thin films fabricated from Au nanoparticle solutions by spin-coating methods.
Anuradha Rout   +7 more
doaj   +1 more source

OPTICAL PROPERTIES AND CHEMICAL CHARACTERIZATION OF WOODY SYRUP BY USING METHODS OF APPLIED PHOTONICS [PDF]

open access: yesJournal of IMAB - Annual Proceeding (Scientific Papers), 2018
Introduction: The natural woody syrup is a typical product from the Canary Islands and America. It is often used for health food supplement for children, athletes and elderly because it has well-pronounced antioxidant properties. The interest in this syrup is increasing because it is often used in homeopathic medicine and consists of phenolic content ...
Poli Radusheva   +4 more
openaire   +2 more sources

Low- and high-order nonlinear optical properties of Ag2S quantum dot thin films

open access: yesNanophotonics, 2019
Thin films containing small-sized quantum dots (QDs) and nanoparticles have shown strong optical nonlinearities caused by the confinement effect. Here, we report the study of third-order optical nonlinearities of silver sulfide (Ag2S) QD thin films using
Fu Yue   +7 more
doaj   +1 more source

35 Core Polarization-Maintaining Multi-core Fiber for High Power Operation [PDF]

open access: yesEPJ Web of Conferences
This work presents a novel rod-type 35 core multi-core fiber design that is capable of overcoming the inherent lack of polarization maintenance in such structures. A polarization extinction ratio of 10.5dB is achieved.
Khalil Yahia   +8 more
doaj   +1 more source

Stochastic antireflection structures on silicon fabricated by reactive ion etching [PDF]

open access: yesEPJ Web of Conferences, 2023
Stochastic Si nanostructures for antireflection (AR) fabricated by reactive ion etching (RIE) are presented for use in different spectral ranges. The lithography-free fabrication enables its application on highly curved surfaces. ALD-coatings of Al2O3 of
Schmelz David   +2 more
doaj   +1 more source

The Boston University Photonics Center annual report 2015-2016 [PDF]

open access: yes, 2016
This repository item contains an annual report that summarizes activities of the Boston University Photonics Center in the 2015-2016 academic year. The report provides quantitative and descriptive information regarding photonics programs in education ...
The Boston University Photonics Center
core   +1 more source

500-W Average Power, 100-mJ level Pulse Energy by Q-switched 7x7 Multicore Fiber Lasers [PDF]

open access: yesEPJ Web of Conferences
This work focuses on achieving high peak and average power through incoherent beam combination of Q-switched 49-core fiber laser. Results show 1.5-MW peak power, and 502-W average power between 1-10 kHz.
Bahri Mehran   +8 more
doaj   +1 more source

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