Results 41 to 50 of about 7,252,201 (202)

Pulse Duration and Wavelength Effects of Laser Ablation on the Oxidation, Hydrolysis, and Aging of Aluminum Nanoparticles in Water

open access: yesNanomaterials, 2019
We analyzed the formation of the aluminum (Al) nanoparticles (NPs) with triangular shape obtained by ablating Al bulk in liquid using pulses with different durations (5 ns, 200 ps, and 30 fs) and wavelengths (355 nm, 800 nm, and 1064 nm). We report three
Ke Zhang   +8 more
doaj   +1 more source

High Average Power Nonlinear Pulse Compression in a Gas-filled Multi-pass Cell at 2 μm Wavelength [PDF]

open access: yesEPJ Web of Conferences, 2022
Gierschke P.   +10 more
doaj   +1 more source

High-Order Harmonic Generation in Au Nanoparticle-Contained Plasmas

open access: yesNanomaterials, 2020
Gold nanoparticles (NPs) have a wide range of applications in various fields. Here, we present high-order nonlinear optical studies of the plasmas produced from ablation of Au bulk targets and Au NP films deposited on paper and glass substrates ...
Mottamchetty Venkatesh   +10 more
doaj   +1 more source

Two octaves spanning photoacoustic microscopy

open access: yesScientific Reports, 2022
In this study, for the first time, a Photoacoustic Microscopy instrument driven by a single optical source operating over a wide spectral range (475–2400 nm), covering slightly more than two octaves is demonstrated. Xenopus laevis tadpoles were imaged in
Gianni Nteroli   +9 more
doaj   +1 more source

Accelerated nonlinear interactions in graded-index multimode fibers

open access: yesNature Communications, 2019
Multimode optical fibers can be used to observe complex intermodal processes like optical solitons. Here, Eftekhar et al. study accelerated nonlinear interaction in multimode fibers with a tapered core diameter and its effect on the temporal and spectral
M. A. Eftekhar   +8 more
doaj   +1 more source

Quantum Optics and Photonics 2021: Book of Abstracts : The 4th International Conference, Riga, 22-23 April 2021

open access: yes, 2021
The conference was supported by ERDF project No.
The 4th International Conference
core   +1 more source

Photonics in Nanotechnology

open access: yes, 2008
This 35-page module, developed by the National Center for Optics and Photonics Education (OP-TEC), discusses the role of optics and lasers in optoelectronics.

core   +1 more source

Optical anisotropy of black phosphorus by total internal reflection

open access: yesNano Materials Science, 2019
Although abundant research on the anisotropy of van der Waals (vdW) materials has been published, we undertake an in-depth study of their optical properties as they have an important guiding role for light control in two-dimensional (2D) nanospace. As an
Wei Xin   +9 more
doaj   +1 more source

Enhancing Detection Efficiency by Applying an Optical Cavity Structure in a Superconducting Nanowire Single-Photon Detector

open access: yesIEICE Transactions on Electronics, 2011
We report on the enhancement of system detection efficiency in a superconducting nanowire single-photon detector (SNSPD) by applying the optical cavity structure. The nanowire was made using 4-nm-thick NbN thin films and covered with an SiO cavity and Au mirror designed for 1300-1600nm wavelengths. The device is mounted into fiber-coupled packages, and
Shigehito Miki   +4 more
openaire   +1 more source

Formation of Slantwise Surface Ripples by Femtosecond Laser Irradiation

open access: yesNanomaterials, 2018
We report on the formation of slantwise-oriented periodic subwavelength ripple structures on chromium surfaces irradiated by single-beam femtosecond laser pulses at normal incidence.
Xin Zheng   +4 more
doaj   +1 more source

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