Zobrazeno 1 - 10
of 236
pro vyhledávání: '"Rafael Piestun"'
Autor:
Antonio M. Caravaca-Aguirre, Sakshi Singh, Simon Labouesse, Michael V. Baratta, Rafael Piestun, Emmanuel Bossy
Publikováno v:
APL Photonics, Vol 4, Iss 9, Pp 096103-096103-8 (2019)
Advances in wavefront shaping technologies have enabled minimally invasive endoscopy using a single multimode fiber (MMF) and paved way to pushing the penetration depth limit inside scattering tissue. Photoacoustic imaging and fluorescence imaging ar
Externí odkaz:
https://doaj.org/article/ad86d600ec8d4b309db165030a0d0ed8
Publikováno v:
IEEE Transactions on Computational Imaging. 9:159-171
Confocal and multiphoton microscopy are effective techniques to obtain high-contrast images of 2-D sections within bulk tissue. However, scattering limits their application to depths only up to ~1 millimeter. Multimode fibers make excellent ultrathin
Publikováno v:
Journal of lightwave technology : a joint IEEE/OSA publication. 39(9)
Multimode fibers are attractive for imaging, communication, computation, and energy delivery. Unfortunately, intermodal and polarization coupling precludes direct control of the delivered mode composition. We present a technique to tailor the mode co
Publikováno v:
ISBI
Confocal microscopy is a powerful imaging tool to obtain high-contrast images of thin sections within bulk tissue. However, tissue scattering limits its utility to only superficial depths. The use of multimode fibers as ultra-thin endoscopes is promi
Publikováno v:
Nature Photonics. 13:788-793
Controlling the propagation and interaction of light in complex media has sparked major interest in the past few years. Unfortunately, spatial light modulation devices suffer from limited speed, which precludes real-time applications such as imaging
With promising properties of fast imaging speed, large field-of-view, relative low cost and many others, back-illuminated sCMOS cameras have been receiving intensive attentions for low-light imaging in the past several years. However, due to the pixe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0448f11bfdfda107c22334306ae81077
https://doi.org/10.1101/2021.01.01.425025
https://doi.org/10.1101/2021.01.01.425025
Autor:
Haiyan Wang, Rafael Piestun
Publikováno v:
OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP).
We design and demonstrate stratified diffractive optical elements to achieve azimuthal multiplexing, a technique that enables recording multiple outputs that are switched upon the rotation of one or more layers by a certain angle.
Publikováno v:
ACS Photonics, vol 7, iss 12
Scattering scanning near-field optical microscopy (s-SNOM) provides spectroscopic imaging from molecular to quantum materials with few nanometer deep subdiffraction limited spatial resolution. However, in its conventional implementation s-SNOM is slo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17aef302b7a9a10825744015632730bf
https://escholarship.org/uc/item/5kt9q84h
https://escholarship.org/uc/item/5kt9q84h
Autor:
Haiyan Wang, Rafael Piestun
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Diffractive optics have increasingly caught the attention of the scientific community. Classical diffractive optics are 2D diffractive optical elements (DOEs) and computer-generated holograms (CGHs), which modulate optical waves on a solitary transve
Autor:
Marco A. Inzunza-Ibarra, Rafael Piestun, Todd W. Murray, Clemens Grünsteidl, Evolene Premillieu
Publikováno v:
Optics express. 28(7)
Focusing light through turbid media using wavefront shaping generally requires a noninvasive guide star to provide feedback on the focusing process. Here we report a photoacoustic guide star mechanism suitable for wavefront shaping through a scatteri