Results 31 to 40 of about 34,297 (264)

STM contrast inversion of the Fe(110) surface [PDF]

open access: yes, 2014
We extend the orbital-dependent electron tunneling model implemented within the three-dimensional (3D) Wentzel-Kramers-Brillouin (WKB) atom-superposition approach to simulate spin-polarized scanning tunneling microscopy (SP-STM) above magnetic surfaces ...
Mándi, Gábor, Palotás, Krisztián
core   +2 more sources

Effects of Corneal Hydration on Brillouin Microscopy In Vivo. [PDF]

open access: yesInvest Ophthalmol Vis Sci, 2018
To investigate how corneal hydration affects the Brillouin frequency of corneal stroma.From a simple analytical model considering the volume fraction of water in corneal stroma, we derived the dependence of Brillouin frequency on hydration and hydration-induced corneal thickness variation. The Brillouin frequencies of fresh ex vivo porcine corneas were
Shao P   +7 more
europepmc   +6 more sources

Correlative all-optical quantification of mass density and mechanics of subcellular compartments with fluorescence specificity

open access: yeseLife, 2022
Quantitative measurements of physical parameters become increasingly important for understanding biological processes. Brillouin microscopy (BM) has recently emerged as one technique providing the 3D distribution of viscoelastic properties inside ...
Raimund Schlüßler   +12 more
doaj   +1 more source

Detecting Mechanical Anisotropy of the Cornea Using Brillouin Microscopy. [PDF]

open access: yesTransl Vis Sci Technol, 2020
The purpose of this study was to detect the mechanical anisotropy of the cornea using Brillouin microscopy along different perturbation directions.Brillouin frequency shift of both whole globes (n = 10) and cornea punches (n = 10) were measured at different angles to the incident laser, thereby probing corneal longitudinal modulus of elasticity along ...
Webb JN   +4 more
europepmc   +3 more sources

Predicting nanocarriers’ efficacy in 3D models with Brillouin microscopy

open access: yesNanoscale, 2023
Thanks to their unique nanoscale properties, nanomedicines can overcome some of the shortcomings of conventional therapies.
Giulia Guerriero   +7 more
openaire   +3 more sources

Quantum mechanical analysis of the elastic propagation of electrons in the Au/Si system: application to Ballistic Electron Emission Microscopy [PDF]

open access: yes, 1998
We present a Green's function approach based on a LCAO scheme to compute the elastic propagation of electrons injected from a STM tip into a metallic film. The obtained 2D current distribution in real and reciprocal space furnish a good representation of
de Andres, P. L.   +5 more
core   +3 more sources

Parallel imaging with phonon microscopy using a multi-core fibre bundle detection

open access: yesPhotoacoustics, 2023
In this paper, we show a proof-of-concept method to parallelise phonon microscopy measurements for cell elasticity imaging by demonstrating a 3-fold increase in acquisition speed which is limited by current acquisition hardware.
Rafael Fuentes-Domínguez   +7 more
doaj   +1 more source

Characterization of retinal biomechanical properties using Brillouin microscopy. [PDF]

open access: yesJ Biomed Opt, 2020
The retina is critical for vision, and several diseases may alter its biomechanical properties. However, assessing the biomechanical properties of the retina nondestructively is a challenge due to its fragile nature and location within the eye globe.
Ambekar YS   +6 more
europepmc   +5 more sources

Non-Invasive Full Rheological Characterization via Combined Speckle and Brillouin Microscopy

open access: yesIEEE Access, 2022
Rheology serves to measure the deformation and flow of materials. Its associated quantities, for example, the Young’s modulus, shear modulus, bulk modulus, or longitudinal modulus, are important in the biomedical field, in particular for soft ...
Johannes Wenzel   +7 more
doaj   +1 more source

Dispersive coherent Brillouin scattering spectroscopy

open access: yesPhotoacoustics, 2023
Frequency- and time-domain Brillouin scattering spectroscopy are powerful tools to read out the mechanical properties of complex systems in material and life sciences.
Ayumu Ishijima   +3 more
doaj   +1 more source

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