Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Roberto Paiella"'
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
The compound eyes of arthropods provide a visual advantage by seeing a wide range of angles all at once, but cameras that mimic them are usually curved and bulky. Here, the authors develop a flat, plasmonic image sensor array that enables high-qualit
Externí odkaz:
https://doaj.org/article/1268ae93d0714a9bb3bd398ee260d0c7
Autor:
Haiding Sun, Jian Yin, Emanuele Francesco Pecora, Luca Dal Negro, Roberto Paiella, Theodore D. Moustakas
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 4, Pp 1-9 (2017)
Deep-ultraviolet emitting structures based on Al0.65Ga0.35N/Al0.8Ga0.2 N multiple quantum wells (MQWs), embedded in compositionally graded AlxGa1-xN films in the form of graded-index-separate-confinement heterostructure, were grown by molecular beam
Externí odkaz:
https://doaj.org/article/129f77d51dd446439acaeaf004dceb4c
Autor:
Roberto Paiella, Max G. Lagally
Publikováno v:
Nanomaterials, Vol 8, Iss 6, p 407 (2018)
Group-IV semiconductors, which provide the leading materials platform of micro- electronics, are generally unsuitable for light emitting device applications because of their indirect- bandgap nature. This property currently limits the large-scale int
Externí odkaz:
https://doaj.org/article/4e358273cd314e3f95b4c7be27e3f3d9
Autor:
Roberto Paiella
Publikováno v:
Fundamentals of Terahertz Devices and Applications
Autor:
Richard M. Osgood, Hanfei Yan, Yong S. Chu, Roberto Paiella, Zi-Cong Huang, Xiaowei Wang, Evgeny Nazaretski, Ajith Pattammattel, Max G. Lagally, Abhishek Bhat, Abdullah Gok, Shelley A. Scott
Publikováno v:
ACS Applied Nano Materials. 4:6160-6169
Publikováno v:
Conference on Lasers and Electro-Optics.
We use specially designed plasmonic photodetectors to develop a new method for image differentiation that can produce edge-enhanced images without external optical elements and under incoherent illumination, unlike traditional optical spatial filters
Publikováno v:
Nanophotonics, Vol 9, Iss 7, Pp 1901-1920 (2020)
Plasmonic excitations, consisting of collective oscillations of the electron gas in a conductive film or nanostructure coupled to electromagnetic fields, play a prominent role in photonics and optoelectronics. While traditional plasmonic systems are
Autor:
Roberto Paiella, Yuyu Li
Publikováno v:
Optics express. 29(24)
Graphene plasmonics provides a powerful means to extend the reach of metasurface technology to the terahertz spectral region, with the distinct advantage of active tunability. Here we introduce a comprehensive design platform for the development of T
Publikováno v:
Optical Materials Express. 12:4528
Graphene is a promising materials platform for metasurface flat optics at terahertz wavelengths, with the important advantage of active tunability. Here we review recent work aimed at the development of tunable graphene metasurfaces for THz wavefront
Publikováno v:
Optics Express. 30:29074
Photonics provides a promising approach for image processing by spatial filtering, with the advantage of faster speeds and lower power consumption compared to electronic digital solutions. However, traditional optical spatial filters suffer from bulk