Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Pooria Salami"'
Autor:
Pooria Salami, Leila Yousefi
Publikováno v:
IET Microwaves, Antennas & Propagation. 14:1983-1989
Although the ability of metasurfaces to control electromagnetic wavefronts has made it possible to design ultrathin carpet cloaks, the narrow operation bandwidth limits the performance of these cloaks. Here, the authors propose a new method to enhanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6019d0566dfbf346598db73af4579e08
https://doi.org/10.1049/iet-map.2020.0396
https://doi.org/10.1049/iet-map.2020.0396
Autor:
Pooria Salami, Leila Yousefi
Publikováno v:
Journal of Lightwave Technology. 38:2322-2327
Due to the wave nature of light, resolution of optical imaging systems is limited to approximately half of the wavelength. The reason behind this limitation, known as diffraction limit, is the loss of information contained in evanescent waves at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::868c59300ba314cac2273ddacaab9595
https://doi.org/10.1109/jlt.2020.2966735
https://doi.org/10.1109/jlt.2020.2966735
Autor:
Leila Yousefi, Pooria Salami
Publikováno v:
Journal of Lightwave Technology. 37:2317-2323
Imaging subwavelength features of an object is in close relationship with extracting information included in evanescent waves scattered from the object. These evanescent waves decay exponentially with distance; therefore, they cannot be captured at f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3d2752f6f798b6a4aaf2ad637044174
https://doi.org/10.1109/jlt.2019.2902544
https://doi.org/10.1109/jlt.2019.2902544
Publikováno v:
Optics Express. 30:39025
Due to the wave nature of light, the resolution achieved in conventional imaging systems is limited to around half of the wavelength. The reason behind this limitation, called diffraction limit, is that part of the information of the object carried b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d6ab690a40cd0cac421722fbb67b31f
https://doi.org/10.1364/oe.470221
https://doi.org/10.1364/oe.470221
Publikováno v:
Journal of the Optical Society of America B. 39:2760
A method to develop an insulator window film which is able to filter thermal emission while transmitting the visible spectrum of sunlight is proposed. The proposed film is constructed from engineered metallic nano-spheres randomly distributed in S i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ac2c8660e3cf7aea8c314c93c8da77
https://doi.org/10.1364/josab.469674
https://doi.org/10.1364/josab.469674
Publikováno v:
2021 29th Iranian Conference on Electrical Engineering (ICEE).
Here, we design continuous higher-order dielectric metasurfaces to convert evanescent waves with large transverse wavenumbers into propagating ones. The dielectric nature of the designed metasurfaces and their operation in higher order modes reduce l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757d75e29ddd6864c7ecdc3568a1b270
https://doi.org/10.1109/icee52715.2021.9544456
https://doi.org/10.1109/icee52715.2021.9544456
Publikováno v:
Materials Science and Engineering: B. 276:115557
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ee0eda12fb45257705356ee6e5c2b66
https://doi.org/10.1016/j.mseb.2021.115557
https://doi.org/10.1016/j.mseb.2021.115557
Autor:
Pooria Salami, Leila Yousefi
Publikováno v:
Journal of the Optical Society of America B. 38:670
Losing the information contained in evanescent waves scattered from an object limits the best achievable resolution in far-field optical imaging systems to about half of the wavelength. This limitation is known as the diffraction limit. In this paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d084abf547b4cc9aa34f074ed15a7c63
https://doi.org/10.1364/josab.405022
https://doi.org/10.1364/josab.405022
Autor:
Pooria Salami, Leila Yousefi
Publikováno v:
2018 Fifth International Conference on Millimeter-Wave and Terahertz Technologies (MMWaTT).
Here, we show theoretically and numerically that gradient metasurfaces can be used for converting evanescent waves to propagating ones. This conversion is useful for far field subwavelength imaging, where information about subwavelength features of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a75c4f186a66b714352bc2aebe896543
https://doi.org/10.1109/mmwatt.2018.8661225
https://doi.org/10.1109/mmwatt.2018.8661225
Publikováno v:
Journal of Optics. 20:125004
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f39415f672680db851a287816b03d2a
https://doi.org/10.1088/2040-8986/aaea54
https://doi.org/10.1088/2040-8986/aaea54