Results 11 to 20 of about 1,750,612 (319)

Ultrasound spectroscopy [PDF]

open access: yes2016 IEEE 13th International Symposium on Biomedical Imaging (ISBI), 2016
We introduce the concept of "Ultrasound Spectroscopy". The premise of ultrasound spectroscopy is that by acquiring ultrasound RF data at multiple power and frequency settings, a rich set of features can be extracted from that RF data and used to characterize the underlying tissues.
Stephen R. Aylward   +5 more
openaire   +2 more sources

Planck Spectroscopy

open access: yesLaser & Photonics Reviews, 2021
AbstractAll spectrometers rely on some mechanism to achieve spectral selectivity; common examples include gratings, prisms, and interferometers with moving mirrors. A spectroscopic technique—here dubbed Planck spectroscopy—that measures the spectral emissivity of a surface using only a temperature‐controlled stage and a detector, without any wavelength‐
Yuzhe Xiao   +6 more
openaire   +2 more sources

SPECTROSCOPY. [PDF]

open access: yesJournal of the American Chemical Society, 1905
n ...
openaire   +1 more source

Frequency stabilization of diode laser on the wavelength of 5P3/2→5D5/2 of rubidium transition

open access: yesEPJ Web of Conferences, 2017
The method of frequency stabilization of diode laser on the wavelength of 5P3/2→5D5/2 of rubidium (776 nm) has been realized. The two-photon absorption spectroscopy of the rubidium vapors is underlie of the suggested scheme.
Kalatskiy A.Yu.   +3 more
doaj   +1 more source

Tracing multiple scattering trajectories for deep optical imaging in scattering media

open access: yesNature Communications, 2023
Multiple light scattering hampers imaging objects in complex scattering media. Approaches used in real practices mainly aim to filter out multiple scattering obscuring the ballistic waves that travel straight through the scattering medium.
Sungsam Kang   +6 more
doaj   +1 more source

Nanolocalized UV source of laser radiation

open access: yesEPJ Web of Conferences, 2017
We show the results of optical nonlinear interaction of laser light with plasmonic nanostructures. Creation of a nanolocalized source of UV radiation (λ = 260 nm) of the record high intensity was demonstated.
Melentiev P.N.   +3 more
doaj   +1 more source

s2ISM: A Comprehensive Approach for Uncompromised Super-Resolution and Optical Sectioning in Image Scanning Microscopy [PDF]

open access: yesEPJ Web of Conferences
Image Scanning Microscopy (ISM) enables good signal-to-noise ratio (SNR), super-resolution and high information content imaging by leveraging array detection in a laser-scanning architecture. However, the SNR is still limited by the size of the detector,
Zunino Alessandro   +5 more
doaj   +1 more source

Single photon transport by a moving atom through sub-wavelength hole

open access: yesEPJ Web of Conferences, 2017
The results of investigation of photon transport through the subwavelength hole in the opaque screen by using single neutral atom are represented.
Afanasiev A.E.   +4 more
doaj   +1 more source

Solid-state NMR spectroscopy on complex biomolecules

open access: yes, 2010
Biomolecular applications of NMR spectroscopy are often merely associated with soluble molecules or magnetic resonance imaging. However, since the late 1970s, solid-state NMR (ssNMR) spectroscopy has demonstrated its ability to provide atomic-level ...
NMR Spectroscopy   +7 more
core   +1 more source

Characterization of membrane protein function by solid-state NMR spectroscopy

open access: yes, 2014
Membrane proteins are an important class of biological molecules whose association with lipid bilayers and intrinsic molecular mobility can complicate their structural study by high-resolution methods.
Baldus, Marc   +3 more
core   +1 more source

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