Results 31 to 40 of about 411,959 (304)

Narrowband spectroscopy by all-optical correlation of broadband pulses

open access: yes, 2008
High peak power ultrafast lasers are widely used in nonlinear spectroscopy but often limit its spectral resolution because of the broad frequency bandwidth of ultrashort laser pulses. Improving the resolution by achieving spectrally narrow excitation of,
I. Pastirk   +5 more
core   +1 more source

Multi-frequency Study of the LMC Supernova Remnant (SNR) B0513-692 and New SNR Candidate J051327-6911

open access: yes, 2007
We present a new multi-wavelength study of supernova remnant (SNR) B0513-692 in the Large Magellanic Cloud (LMC). The remnant also has a strong, superposed, essentially unresolved, but unrelated radio source at its north-western edge, J051324-691049 ...
A. Kawamura   +48 more
core   +1 more source

Coherent Interaction of Light and Single Molecules in a Dielectric Nanoguide [PDF]

open access: yes, 2014
We present a new scheme for performing optical spectroscopy on single molecules. A glass capillary with a diameter of 600 nm filled with an organic crystal tightly guides the excitation light and provides a maximum spontaneous emission coupling factor ($\
Faez, Sanli   +4 more
core   +3 more sources

Absorbance response of graphene oxide coated on tapered multimode optical fiber towards liquid ethanol [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2015
The investigation of graphene oxide (GO) for sensing applications is attractive due to its nanoscale structure and its sensing properties has yet to be fully understood. In this paper, optical response of GO coated optical fiber sensor towards ethanol is
Girei S. H.   +5 more
doaj   +1 more source

Non equilibrium anisotropic excitons in atomically thin ReS$_2$

open access: yes, 2018
We present a systematic investigation of the electronic properties of bulk and few layer ReS$_2$ van der Waals crystals using low temperature optical spectroscopy.
Baranowski, M.   +12 more
core   +3 more sources

Disentangling the Environment of the FU Orionis Candidate HBC 722 with Herschel [PDF]

open access: yes, 2011
We analyze the submillimeter emission surrounding the new FU Orionis-type object, HBC 722. We present the first epoch of observations of the active environs of HBC 722, with imaging and spectroscopy from PACS, SPIRE, and HIFI aboard the Herschel Space ...
Andrews   +19 more
core   +5 more sources

The Study of the Optical Properties of C60 Fullerene in Different Organic Solvents

open access: yesOpen Chemistry, 2019
C60 fullerene exhibits unique optical properties that have high potential for wide photo-optical applications. To analyze the optical properties of C60, its excitation and emission properties were studied using UV-Vis absorption and photoluminescence (PL)
Saraswati Teguh Endah   +4 more
doaj   +1 more source

Plasma Process Control With Optical Emission Spectroscopy [PDF]

open access: yesSensors in Electronic Packaging, 1995
Abstract Plasma processes for etching and desmear of electronic components and printed wiring boards (PWB) are difficult to predict and control. Non-uniformity of most plasma processes and sensitivity to environmental changes make it difficult to maintain process stability from day to day.
openaire   +1 more source

Influence of tartaric acid concentration on structural and optical properties of CuSe nanoparticles synthesized via microwave assisted method

open access: yesResults in Physics, 2020
The influence of chelating agent on structural and optical properties of copper selenide nanoparticle has been the subject of ongoing debate in copper selenide based material research.
Ibrahim Garba Shitu   +4 more
doaj   +1 more source

Optical detection and spectroscopic confirmation of supernova remnant G213.0-0.6 (now re-designated as G213.3-0.4) [PDF]

open access: yes, 2011
During a detailed search for optical counterparts of known Galactic supernova remnants (SNRs) using the Anglo Australian Observatory/United Kingdom Schmidt Telescope (AAO/UKST) HAlpha survey of the southern Galactic plane we have found characteristic ...
Arendt   +28 more
core   +1 more source

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