Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Stephanie C. Malek"'
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-13 (2022)
Nonlocal metasurfaces are demonstrated that offer both spatial and spectral control of light, realizing metalenses focusing light exclusively over a narrowband resonance while leaving off-resonant frequencies unaffected.
Externí odkaz:
https://doaj.org/article/d85bca903a84437a8ec7b6b285923de6
Autor:
Heqing Huang, Adam C. Overvig, Yuan Xu, Stephanie C. Malek, Cheng-Chia Tsai, Andrea Alù, Nanfang Yu
Metasurfaces have been rapidly advancing our command over the many degrees of freedom of light within compact, lightweight devices. However, so far, they have mostly been limited to manipulating light in free space. Grating couplers provide the oppor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::954cf14cb3233f2665578a513bd835ae
http://arxiv.org/abs/2207.08936
http://arxiv.org/abs/2207.08936
Publikováno v:
Nanophotonics, Vol 10, Iss 1, Pp 655-665 (2020)
Actively tunable and reconfigurable wavefront shaping by optical metasurfaces poses a significant technical challenge often requiring unconventional materials engineering and nanofabrication. Most wavefront-shaping metasurfaces can be considered 'loc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b5b11d464c2bbe16a65b1ddff742e6f
https://doi.org/10.1515/nanoph-2020-0375
https://doi.org/10.1515/nanoph-2020-0375
Publikováno v:
Conference on Lasers and Electro-Optics.
We experimentally demonstrate a thermally-controlled wavefront-shaping nonlocal metasurface on a simple device platform.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aacc30b6336b172717915bfca210b2a
https://doi.org/10.1364/cleo_qels.2022.fth2d.1
https://doi.org/10.1364/cleo_qels.2022.fth2d.1
Publikováno v:
Conference on Lasers and Electro-Optics.
We experimentally demonstrate systems of nonlocal optical metasurfaces that spatially shape the incident wavefront deliberately and distinctively for multiple independent resonances without altering the wavefront shape of non-resonant light.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81077b4173bc30a700875008d754fedb
https://doi.org/10.1364/cleo_qels.2021.fm4j.3
https://doi.org/10.1364/cleo_qels.2021.fm4j.3
Diffractive photonic devices manipulate light via local and nonlocal optical modes. Local devices, such as metasurfaces, can shape a wavefront at multiple selected wavelengths, but inevitably modify light across the spectrum; nonlocal devices, such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd5de11d17edec1b94a15efc269e954d
http://arxiv.org/abs/2005.12332
http://arxiv.org/abs/2005.12332
Publikováno v:
Conference on Lasers and Electro-Optics.
We experimentally demonstrate dielectric metasurfaces that support spatially tailored dark modes (quasi-Bound States in the Continuum) and mold optical wavefronts only at narrowband Fano resonances, while leaving the rest of the spectrum unaffected.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d011e36ed38f86ce77b816831a1d3762
https://doi.org/10.1364/cleo_qels.2020.ftu4q.2
https://doi.org/10.1364/cleo_qels.2020.ftu4q.2
Photonic devices rarely provide both elaborate spatial control and sharp spectral control over an incoming wavefront. In optical metasurfaces, for example, the localized modes of individual meta-units govern the wavefront shape over a broad bandwidth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f51062688002a51c7bcf880681100efc
Publikováno v:
Conference on Lasers and Electro-Optics.
We show that two-layer photonic crystal slabs with chiral perturbations yield Fano resonances with controllable amplitude and phase, and demonstrate devices with spatially tailored dark modes that anomalously reflect light with controllable diffracti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a60becfd88942e85f74eae42d523647
https://doi.org/10.1364/cleo_qels.2020.fm2b.5
https://doi.org/10.1364/cleo_qels.2020.fm2b.5