Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Luis A. Alemán-Castañeda"'
Autor:
Valentina Curcio, Luis A. Alemán-Castañeda, Thomas G. Brown, Sophie Brasselet, Miguel A. Alonso
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-13 (2020)
Determining the orientation of single molecules in super resolution imaging is challenging. Here, by adding polarization control to phase control in the Fourier plane of the imaging path, parameters such as 3D spatial position, 3D orientation and wob
Externí odkaz:
https://doaj.org/article/cdd02cba3f65435089ef6f5543e48f40
Autor:
Luis A. Alemán-Castañeda, Sherry Yi-Ting Feng, Rodrigo Gutiérrez-Cuevas, Isael Herrera, Thomas G. Brown, Sophie Brasselet, Miguel A. Alonso
Publikováno v:
Journal of the Optical Society of America. A Optics, Image Science, and Vision
Journal of the Optical Society of America. A Optics, Image Science, and Vision, 2022, 39 (12), pp.C167-C178. ⟨10.1364/JOSAA.474837⟩
Journal of the Optical Society of America. A Optics, Image Science, and Vision, 2022, 39 (12), pp.C167-C178. ⟨10.1364/JOSAA.474837⟩
International audience; We study the conditions under which fluorescent beads can be used to emulate single fluorescent molecules in the calibration of optical microscopes. Although beads are widely used due to their brightness and easy manipulation,
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics
IEEE Journal of Selected Topics in Quantum Electronics, Institute of Electrical and Electronics Engineers, 2021, 27 (4), pp.7201312. ⟨10.1109/JSTQE.2021.3069098⟩
IEEE Journal of Selected Topics in Quantum Electronics, 2021, 27 (4), pp.7201312. ⟨10.1109/JSTQE.2021.3069098⟩
IEEE Journal of Selected Topics in Quantum Electronics, Institute of Electrical and Electronics Engineers, 2021, 27 (4), pp.7201312. ⟨10.1109/JSTQE.2021.3069098⟩
IEEE Journal of Selected Topics in Quantum Electronics, 2021, 27 (4), pp.7201312. ⟨10.1109/JSTQE.2021.3069098⟩
We derive closed-form solutions for reverberant elastography in anisotropic elastic media by adapting the framework used in electromagnetic theory to treat transverse isotropic materials. Different sample-setup geometries are analyzed, highlighting t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48d4dcab0a61a35863b9e26cb2e0a333
https://hal.archives-ouvertes.fr/hal-03467630/document
https://hal.archives-ouvertes.fr/hal-03467630/document
Publikováno v:
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVII
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVII, Aug 2020, San Diego, United States. pp.13, ⟨10.1117/12.2570791⟩
Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVII, Aug 2020, San Diego, United States. pp.13, ⟨10.1117/12.2570791⟩
International audience; We present a new approach to relate the reflector's shape and the direction in which light gets reflected. Using a simple conformal map the reflector profile can be transformed into a curve that describes light's direction aft
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b2f0f4d74ad62c65b78235e8405bf65
https://hal.archives-ouvertes.fr/hal-02977562/document
https://hal.archives-ouvertes.fr/hal-02977562/document
Autor:
Thomas G. Brown, Miguel A. Alonso, Luis A. Alemán-Castañeda, Valentina Curcio, Sophie Brasselet
Publikováno v:
Frontiers in Optics / Laser Science.
We present a new technique for fluorescence microscopy that allows 3-D localization plus orientation and wobbling characterization. Using a spatially varying birefringent mask the information is encoded in the PSFs of the circularly polarized compone
Autor:
Valentina, Curcio, Luis A, Alemán-Castañeda, Thomas G, Brown, Sophie, Brasselet, Miguel A, Alonso
Publikováno v:
Nature Communications
Super-resolution imaging based on single molecule localization allows accessing nanometric-scale information in biological samples with high precision. However, complete measurements including molecule orientation are still challenging. Orientation i
Autor:
Miguel A. Alonso, Lorenzo Marrucci, Luis A. Alemán-Castañeda, Enrico Santamato, Bruno Piccirillo
Publikováno v:
Optical Design and Fabrication 2019 (Freeform, OFT).
We present a novel mechanism for performing common-path shearing interferometry using geometric phase, enabling almost any directional derivative while securing compactness and robustness. Important applications in freeform optics testing may result.
Publikováno v:
Optical Design and Fabrication 2019 (Freeform, OFT).
We present an approach to understand the relation between a reflector’s shape and the direction in which light gets reflected based on a simple conformal map. Applications for 2D segmented and continuous reflectors are presented.
Publikováno v:
Optics Letters
Optics Letters, 2019, 44 (15), pp.3809. ⟨10.1364/OL.44.003809⟩
Optics Letters, Optical Society of America-OSA Publishing, 2019, 44 (15), pp.3809. ⟨10.1364/OL.44.003809⟩
Optics Letters, 2019, 44 (15), pp.3809. ⟨10.1364/OL.44.003809⟩
Optics Letters, Optical Society of America-OSA Publishing, 2019, 44 (15), pp.3809. ⟨10.1364/OL.44.003809⟩
We present an approach for the study and design of reflectors with rotational or translational symmetry that redirect light from a point source into any desired radiant intensity distribution. This method is based on a simple conformal map that trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64567abf876960d29c78dca0640acc5d
https://hal.science/hal-02196273/file/1907.05705.pdf
https://hal.science/hal-02196273/file/1907.05705.pdf
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 33(4)
We have derived a closed-form expression for the angle between polarizations of ordinary and extraordinary rays in uniaxial crystals for, first, any two rays propagating in the material, and, second, for rays coming from refraction. We show the cases