Zobrazeno 1 - 10
of 138
pro vyhledávání: '"Stefan, Bernet"'
Autor:
Stefan Bernet
Publikováno v:
Optics express. 30(21)
Previous work has shown that a set of two diffractive optical elements arranged in series can form a diffractive lens with variable optical power that can be tuned by relative rotation of its two sub-elements about their common central axis. However,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfbc483d6ff5c7f38c3a875b78bbe514
https://pubmed.ncbi.nlm.nih.gov/36258430
https://pubmed.ncbi.nlm.nih.gov/36258430
Autor:
Stefan Bernet
Publikováno v:
Journal of the Optical Society of America. A, Optics, image science, and vision. 38(10)
A pair of adjacent transmissive diffractive optical elements (DOEs) forms a combined DOE with tunable optical properties, as, for example, a diffractive lens with an adjustable focal length. The optical properties are controlled by a relative movemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be6e342ac476652f658a2cd2dca864ca
https://pubmed.ncbi.nlm.nih.gov/34612982
https://pubmed.ncbi.nlm.nih.gov/34612982
Publikováno v:
Optics express. 28(20)
A pair of combined diffractive optical elements (DOEs) realizes a so-called moiré lens, with an optical power which can be tuned by a mutual rotation of the two DOEs around their central optical axis. Earlier demonstrated moiré lenses still suffere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e7216b8e1e28fc9fc7c65d54750e3da
https://pubmed.ncbi.nlm.nih.gov/33114899
https://pubmed.ncbi.nlm.nih.gov/33114899
Autor:
Martin, Bawart, Molly A, May, Thomas, Öttl, Clemens, Roider, Stefan, Bernet, Michael, Schmidt, Monika, Ritsch-Marte, Alexander, Jesacher
Publikováno v:
Optics express. 28(18)
Remote focusing means to translate the focus position of an imaging system along the optical axis without moving the objective lens. The concept gains increasing importance as it allows for quick 3D focus steering in scanning microscopes, leaves the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c08a40764c5f03f9b5cb099b23c0ae1f
https://pubmed.ncbi.nlm.nih.gov/32906907
https://pubmed.ncbi.nlm.nih.gov/32906907
Publikováno v:
Optics express. 28(3)
In a recent publication [Appl. Opt. 57, 8087 (2018).] a zoom system based on rotating toroidal lenses had been theoretically suggested. Here we demonstrate two different experimental realizations of such a system. The first consists of a set of four
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d7015536f889afdf84f48197b8c1430
https://pubmed.ncbi.nlm.nih.gov/32121998
https://pubmed.ncbi.nlm.nih.gov/32121998
Publikováno v:
Journal of Microscopy. 271:337-344
Alvarez lenses are actuated lens-pairs which allow one to tune the optical power by mechanical displacement of subelements. Here, we show that a recently realized modified Alvarez lens design which does not require mechanical actuation can be integra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c0a0a142f5cc4e64037a206724a2711
https://doi.org/10.1111/jmi.12724
https://doi.org/10.1111/jmi.12724
Publikováno v:
Optics Communications. 460:125071
We experimentally demonstrate a compact, on-axis device for two-dimensional steering of the direction of a transmitted beam. It consists of two adjacent diffractive optical elements (DOEs) corresponding to two decentered Fresnel lenses with opposite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ae2c4ddebfa596909161fd5308123cd
https://doi.org/10.1016/j.optcom.2019.125071
https://doi.org/10.1016/j.optcom.2019.125071
Autor:
Monika Ritsch-Marte, Stefan Bernet
Publikováno v:
Optics express. 25(3)
Rotationally tunable diffractive optical elements (DOEs) consist of two stacked diffractive optical elements which are rotated with respect to each other around their central optical axis. The combined diffractive element acts as a highly efficient d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb47930416ef32804a0ac318fcb4c405
https://pubmed.ncbi.nlm.nih.gov/29519092
https://pubmed.ncbi.nlm.nih.gov/29519092
Publikováno v:
Optics express. 25(5)
Modern liquid crystal spatial light modulators (SLMs) are capable of shifting the optical path length by some microns, which corresponds to phase shifts of several multiples of 2π. We use this capability to display freeform optical elements (FOEs) o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4100fce4851ef48d00155e0665b56c8
https://pubmed.ncbi.nlm.nih.gov/28380757
https://pubmed.ncbi.nlm.nih.gov/28380757
Publikováno v:
Biomedical Imaging: Principles and Applications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9826aa69266650d02a6676c105dd3673
https://doi.org/10.1002/9781118271933.ch10
https://doi.org/10.1002/9781118271933.ch10