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Small, EarlyView.Polarized neutron powder diffraction is used to qualitatively probe the magnetocrystalline anisotropy of cobalt‐doped ferrite nanoparticles. The analysis of local magnetic susceptibility tensors and magnetization ellipsoids reveals how cobalt incorporation modifies both the magnitude and orientation of anisotropy, providing a new approach to compare ...
Igor V. Golosovsky +9 more
wiley +1 more source
Nature PhotonicsAbstractOptical imaging techniques with mechanical contrast, including passive microrheology, optical coherence elastography and Brillouin microscopy, are critical for material and biological discovery owing to their less perturbative nature compared with traditional mechanical imaging methods.
Roni Shaashoua +2 more
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In vivo Brillouin optical microscopy of the human eye
Optics Express, 2012 We report the first Brillouin measurement of the human eye in vivo. We constructed a Brillouin optical scanner safe for human use by employing continuous-wave laser light at 780 nm at a low power of 0.7 mW. With a single scan along the optic axis of the eye, the axial profile of Brillouin frequency shift was obtained with a pixel acquisition time of 0 ...
Giuliano Scarcelli, Seok Hyun Yun
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Impulsive Brillouin microscopy
Optica, 2017 Brillouin scattering has been emerging as a viable tool for microscopy. However, most of the work done has been with the use of spontaneous Brillouin scattering, which has several hindrances to its use. In this work, we propose and demonstrate nonlinear Brillouin scattering as a solution to many of these hindrances.
Charles W Ballmann +2 more
exaly +2 more sources
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Dark-field Brillouin microscopy
Optics Letters, 2017Brillouin microscopy is a non-contact and label-free technique for mapping fundamental micro-mechanical properties in the volume of biological systems. Specular reflections and elastic scattering easily overwhelm the weak Brillouin spectra due to the limited extinction of virtually imaged phased array spectrometers, thereby affecting the image ...
Giuseppe Antonacci
exaly +3 more sources
Brillouin microscopy for ocular biomechanics
Frontiers in Optics 2016, 2016 Seok Hyun Yun
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Dynamic Brillouin microscopy imaging
Optical Elastography and Tissue Biomechanics VII, 2020Brillouin microscopy is an emerging imaging modality in a broad area of biomedical research and clinical applications. Over the past decade, a significance progress has been achieved in developing better, more accurate and more user-friendly instrumentation for Brillouin microscopy and in fundamental understanding of the imaging contrast affordable in ...
Dominik Doktor +5 more
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Brillouin microscopy: an emerging tool for mechanobiology
Nature Methods, 2019The role and importance of mechanical properties of cells and tissues in cellular function, development and disease has widely been acknowledged, however standard techniques currently used to assess them exhibit intrinsic limitations. Recently, Brillouin microscopy, a type of optical elastography, has emerged as a non-destructive, label- and contact ...
Prevedel R. +3 more
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Biophysical contrast mechanisms of Brillouin microscopy
Multimodal and Nanoscale Optical Microscopy, 2023Brillouin scattering spectroscopy, which for decades has been used in applied physics and material research, has recently gained prominence as a microscopy technique in biological research and clinical medicine for the measurement of mechanical properties of cells, tissues and biomaterials.
Fiore, Antonio, Scarcelli, Giuliano
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Brillouin microscopy for ocular biomechanics
Conference on Lasers and Electro-Optics 2010, 2010We present Brillouin confocal microscopy with high throughput and high extinction for non-invasive mechanical measurements of tissue and biomaterials. In particular, we demonstrate biomechanical characterization of crystalline lens and cornea.
Giuliano Scarcelli, Seok H. Yun
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