Results 31 to 40 of about 11,701 (225)

Raman Spectroscopy Investigation of Graphene Oxide Reduction by Laser Scribing

open access: yesC, 2021
Laser scribing has been proposed as a fast and easy tool to reduce graphene oxide (GO) for a wide range of applications. Here, we investigate laser reduction of GO under a range of processing and material parameters, such as laser scan speed, number of ...
Vittorio Scardaci, Giuseppe Compagnini
doaj   +1 more source

The impact of laser-scribing carbon-based supercapacitor electrodes

open access: yesApplied Surface Science Advances, 2022
In highly porous carbon electrodes, a large fraction of pores can be inaccessible to the electrolyte, which translates into lower specific capacitances. This is accentuated at high current densities.
J.M. Baptista   +3 more
doaj   +1 more source

The Development Progress of Surface Structure Diffraction Gratings: From Manufacturing Technology to Spectroscopic Applications

open access: yesApplied Sciences, 2022
The high-precision diffraction grating is an important chromatic dispersion component that has been widely used in many fields, including laser beam combining, chirped pulse compression, spectroscopy, among others.
Ye Wang   +5 more
doaj   +1 more source

A photonic crystal nanocavity laser in an optically very thick slab [PDF]

open access: yes, 2011
A photonic crystal (PhC) nanocavity formed in an optically very thick slab can support reasonably high-Q modes for lasing. Experimentally, we demonstrate room-temperature pulsed lasing operation from the PhC dipole mode emitting at 1324 nm, which is ...
Huang, Jingqing   +2 more
core   +3 more sources

Broad applications of sensors based on laser-scribed graphene

open access: yesLight: Science & Applications, 2023
AbstractSensors based on graphene materials have promising applications in the fields of biology, medicine and environment etc. A laser-scribed graphene provides a versatile, low-cost, and environmental friendly method for stress, bio, gas, temperature, humidity and multifunctional integrated sensors.
Kuen Yao Lau, Jianrong Qiu
openaire   +3 more sources

Semiclassical limits to the linewidth of an atom laser [PDF]

open access: yes, 2006
We investigate the linewidth of a quasi-continuous atom laser within a semiclassical framework. In the high flux regime, the lasing mode can exhibit a number of undesirable features such as density fluctuations.
A. Wicht   +8 more
core   +2 more sources

Thermal Stress Analysis on Laser Scribing of Glass

open access: yesJournal of the Japan Society for Precision Engineering, Contributed Papers, 2004
In the laser scribing of glass a thermal stress is introduced into a glass substrate by means of a CO2 laser irradiation. The glass substrate is then rapidly cooled down by water jet immediately after the irradiation. For the purpose of theoretical clarification of the factors ruling the scribable condition and the crack depth, scribable conditions ...
Koji Yamamoto   +3 more
openaire   +2 more sources

Theoretical and Experimental Investigation on SiC/SiC Ceramic Matrix Composites Machining with Laser Water Jet

open access: yesApplied Sciences, 2022
SiC/SiC ceramic matrix composites (CMCs) are widely applied in the aerospace and nuclear industries due to their excellent material nature (strength, hardness, and irradiation tolerance) at high-temperature loads.
Bai Cheng, Ye Ding, Yuan Li, Lijun Yang
doaj   +1 more source

Flexible battery-free wireless electronic system for food monitoring

open access: yesJournal of Science: Advanced Materials and Devices, 2022
Conventional battery powered and rigid wireless electronic systems are needed to be improved for adapting to the actual food quality and safety monitoring.
Xinqing Xiao   +4 more
doaj   +1 more source

Preparation of Schr\"odinger cat states with cold ions beyond the Lamb-Dicke limit [PDF]

open access: yes, 2001
A scheme for preparing Schr\"odinger cat (SC) states is proposed beyond the Lamb-Dicke limit in a Raman-$\Lambda$-type configuration. It is shown that SC states can be obtained more efficiently with our scheme than with the former ones.Comment: RevTex 9 ...
Blatt   +27 more
core   +2 more sources

Home - About - Disclaimer - Privacy