Results 21 to 30 of about 556,646 (292)

Quantitative and rapid DNA detection by laser transmission spectroscopy. [PDF]

open access: yesPLoS ONE, 2011
Laser transmission spectroscopy (LTS) is a quantitative and rapid in vitro technique for measuring the size, shape, and number of nanoparticles in suspension.
Frank Li   +8 more
doaj   +1 more source

Exoplanetary atmosphere target selection in the era of comparative planetology [PDF]

open access: yes, 2019
The large number of new planets expected from wide-area transit surveys means that follow-up transmission spectroscopy studies of their atmospheres will be limited by the availability of telescope assets.
Awiphan, S.   +7 more
core   +2 more sources

Electron-vibration interaction in single-molecule junctions: from contact to tunneling regime [PDF]

open access: yes, 2008
Point contact spectroscopy on a H2O molecule bridging Pt electrodes reveals a clear crossover between enhancement and reduction of the conductance due to electron-vibration interaction.
B. Leerink   +6 more
core   +3 more sources

Luminescent and Scintillating Properties of Lanthanum Fluoride Nanocrystals in Response to Gamma/Neutron Irradiation: Codoping with Ce Activator, Yb Wavelength Shifter, and Gd Neutron Captor [PDF]

open access: yes, 2016
A novel concept for detection and spectroscopy of gamma rays, and detection of thermal neutrons based on codoped lanthanum fluoride nanocrystals containing gadolinium is presented.The trends of colloidal synthesis of the mentioned material, LaF3 co-doped
Blostein, Juan Jerónimo   +5 more
core   +2 more sources

High-resolution Transmission Spectroscopy of the Terrestrial Exoplanet GJ 486b

open access: yesThe Astronomical Journal, 2023
Terrestrial exoplanets orbiting M-dwarf stars are promising targets for transmission spectroscopy with existing or near-future instrumentation. The atmospheric composition of such rocky planets remains an open question, especially given the high X-ray ...
Andrew Ridden-Harper   +13 more
doaj   +1 more source

Highly Selective Terahertz Bandpass Filters Based on Trapped Mode Excitation [PDF]

open access: yes, 2009
We present two types of metamaterial-based spectral bandpass filters for the terahertz (THz) frequency range. The metamaterials are specifically designed to operate for waves at normal incidence and to be independent of the field polarization.
Behdad   +21 more
core   +1 more source

Nonlinear transmission spectroscopy with dual frequency combs [PDF]

open access: yes, 2014
We show how two frequency combs $\mathcal{E}_1$, $\mathcal{E}_2$ can be used to measure single-photon, two-photon absorption (TPA), and Raman resonances in a molecule with three electronic bands, by detecting the radio frequency modulation of the ...
Glenn, Rachel, Mukamel, Shaul
core   +2 more sources

Thickness Estimation of Epitaxial Graphene on SiC using Attenuation of Substrate Raman Intensity [PDF]

open access: yes, 2009
A simple, non-invasive method using Raman spectroscopy for the estimation of the thickness of graphene layers grown epitaxially on silicon carbide (SiC) is presented, enabling simultaneous determination of thickness, grain size and disorder using the ...
A.C. Ferrari   +25 more
core   +1 more source

Signs of strong Na and K absorption in the transmission spectrum of WASP-103b [PDF]

open access: yes, 2017
Context: Transmission spectroscopy has become a prominent tool for characterizing the atmospheric properties on close-in transiting planets. Recent observations have revealed a remarkable diversity in exoplanet spectra, which show absorption signatures ...
Cubillos, P. E.   +5 more
core   +2 more sources

Transmission versus reflectance spectroscopy for quantitation [PDF]

open access: yesJournal of Biomedical Optics, 2018
The objective of this work was to compare the accuracy of analyte concentration estimation when using transmission versus diffuse reflectance spectroscopy of a scattering medium. Monte Carlo ray tracing of light through the medium was used in conjunction with pure component absorption spectra and Beer-Lambert absorption along each ray's pathlength to ...
openaire   +2 more sources

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