Results 121 to 130 of about 4,470,820 (395)

EMISSION OF COMPOSITE PARTICLES IN A CONSTANT ELECTRIC FIELD

open access: yesEast European Journal of Physics, 2015
The spectrum of emission of a composite particle with one degree of freedom in a constant electric field is obtained in the paper. The effectiveness of emission of such particle is compared with the structureless particle having the same parameters.
S. V. Slipushenko   +3 more
doaj  

Study of high-accuracy optical model of green phosphor pumped by ultraviolet laser

open access: yesResults in Optics
We have developed an optical model for green phosphor pumped by ultraviolet (UV) laser. The model has begun with defining an efficient mathematical model to describe the emission of UV band and green light. Next, the data of peak emission wavelength, the
Huynh-Tuan- Anh Nguyen   +1 more
doaj   +1 more source

Measurement of fluorescence emission spectrum of few strongly driven atoms using an optical nanofiber.

open access: yesOptics Express, 2010
We show that the fluorescence emission spectrum of few atoms can be measured by using an optical nanofiber combined with the optical heterodyne and photon correlation spectroscopy.
M. Das   +5 more
semanticscholar   +1 more source

Very deep spectroscopy of the bright Saturn Nebula NGC 7009 -- I. Observations and plasma diagnostics

open access: yes, 2011
We present very deep CCD spectrum of the bright, medium-excitation planetary nebula NGC 7009, with a wavelength coverage from 3040 to 11000 A. Traditional emission line identification is carried out to identify all the emission features in the spectra ...
Fang, X., Liu, X. -W.
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Super-Resolution Imaging of Molecular Emission Spectra and Single Molecule Spectral Fluctuations.

open access: yesPLoS ONE, 2016
Localization microscopy can image nanoscale cellular details. To address biological questions, the ability to distinguish multiple molecular species simultaneously is invaluable. Here, we present a new version of fluorescence photoactivation localization
Michael J Mlodzianoski   +4 more
doaj   +1 more source

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