Zobrazeno 1 - 10
of 684
pro vyhledávání: '"Yun, Seok‐Hyun"'
Lens tension is essential for accommodative vision but remains challenging to measure with precision. Here, we present an optical coherence elastography (OCE) technique that quantifies both the tension and elastic modulus of lens tissue and capsule.
Externí odkaz:
http://arxiv.org/abs/2412.13262
Autor:
Bouvet, Pierre, Bevilacqua, Carlo, Ambekar, Yogeshwari, Antonacci, Giuseppe, Au, Joshua, Caponi, Silvia, Chagnon-Lessard, Sophie, Czarske, Juergen, Dehoux, Thomas, Fioretto, Daniele, Fu, Yujian, Guck, Jochen, Hamann, Thorsten, Heinemann, Dag, Jähnke, Torsten, Jean-Ruel, Hubert, Kabakova, Irina, Koski, Kristie, Koukourakis, Nektarios, Krause, David, Cavera III, Salvatore La, Landes, Timm, Li, Jinhao, Margueritat, Jeremie, Mattarelli, Maurizio, Monaghan, Michael, Overby, Darryl R., Perez-Cota, Fernando, Pontecorvo, Emanuele, Prevedel, Robert, Ruocco, Giancarlo, Sandercock, John, Scarcelli, Giuliano, Scarponi, Filippo, Testi, Claudia, Török, Peter, Vovard, Lucie, Weninger, Wolfgang, Yakovlev, Vladislav, Yun, Seok-Hyun, Zhang, Jitao, Palombo, Francesca, Bilenca, Alberto, Elsayad, Kareem
Brillouin Light Scattering (BLS) spectroscopy is a non-invasive, non-contact, label-free optical technique that can provide information on the mechanical properties of a material on the sub-micron scale. Over the last decade it has seen increased app
Externí odkaz:
http://arxiv.org/abs/2411.11712
Nano-scale lasers harnessing metallic plasmons hold promise across physical sciences and industrial applications. Plasmons are categorized as surface plasmon polaritons (SPP) and localized surface plasmons (LSP). While SPP has gained popularity for n
Externí odkaz:
http://arxiv.org/abs/2310.08742
Shear wave elastography (SWE) has emerged as a new imaging modality that brings tissue mechanical properties as biomarkers potentially useful for early and precise diagnosis. While different SWE methods have been proposed, how to relate the frequency
Externí odkaz:
http://arxiv.org/abs/2310.04745
Understanding corneal stiffness is valuable for improving refractive surgery, detecting corneal abnormalities, and assessing intraocular pressure. However, accurately measuring the elastic properties, particularly the tensile and shear moduli that go
Externí odkaz:
http://arxiv.org/abs/2308.05316
In vivo Optical Coherence Elastography Reveals Spatial Variation and Anisotropy of Corneal Stiffness
Objective: The mechanical properties of corneal tissues play a crucial role in determining corneal shape and have significant implications in vision care. This study aimed to address the challenge of obtaining accurate in vivo data for the human corn
Externí odkaz:
http://arxiv.org/abs/2307.04083
Autor:
Sarkar, Debarghya, Cho, Sangyeon, Yan, Hao, Martino, Nicola, Dannenberg, Paul H., Yun, Seok-Hyun
Nanolasers have great potential as both on-chip light sources and optical barcoding particles. We demonstrate ultrasmall InGaP and InGaAsP disk lasers with diameters down to 360 nm (198 nm in height) in the red spectral range. Optically pumped, room-
Externí odkaz:
http://arxiv.org/abs/2212.13301
Visualizing elastic waves by noninvasive imaging has been useful for analyzing the mechanical properties of materials and tissues. However, the maximum wave frequency of elastography has been limited to ~10 kHz due to the finite sensitivity to small
Externí odkaz:
http://arxiv.org/abs/2211.10534
Traveling-wave optical coherence elastography (OCE) is a promising technique to measure the stiffness of biological tissues. While OCE has been applied to relatively homogeneous samples, tissues with significantly varying elasticity through depth pos
Externí odkaz:
http://arxiv.org/abs/2201.12258
Knowing the stress within a soft material is of fundamental interest to basic research and practical applications, such as soft matter devices, biomaterial engineering, and medical sciences. However, it is challenging to measure stress fields in situ
Externí odkaz:
http://arxiv.org/abs/2201.01847