Results 1 to 10 of about 67,030 (113)

Metasurface Photodetectors [PDF]

open access: yesMicromachines, 2021
Photodetectors are the essential building blocks of a wide range of optical systems. Typical photodetectors only convert the intensity of light electrical output signals, leaving other electromagnetic parameters, such as the frequencies, phases, and polarization states unresolved.
Jinzhao Li   +3 more
openaire   +3 more sources

Tunable Nanoplasmonic Photodetectors

open access: yesNano Letters, 2022
Visible and infrared photons can be detected with a broadband response via the internal photoeffect. By using plasmonic nanostructures, i.e. nanoantennas, wavelength selectivity can be introduced to such detectors through geometry-dependent resonances.
Patrick Pertsch   +5 more
openaire   +3 more sources

InGaAs PIN photodetectors integrated on silicon-on-insulator waveguides [PDF]

open access: yes, 2010
InGaAs PIN photodetectors heterogeneously integrated on silicon-on-insulator waveguides are fabricated and characterized. Efficient evanescent coupling between silicon-on-insulator waveguides and InGaAs photodetectors is achieved.
Brouckaert, Joost   +4 more
core   +1 more source

MoS2-HgTe Quantum Dot Hybrid Photodetectors beyond 2 μm [PDF]

open access: yes, 2017
Mercury telluride (HgTe) colloidal quantum dots (CQDs) have been developed as promising materials for the short and mid-wave infrared photodetection applications because of their low cost, solution processing and size tunable absorption in the short wave-
Barkhouse   +37 more
core   +4 more sources

BER and outage probability of DPSK subcarrier intensity modulated free space optics in fully developed speckle. [PDF]

open access: yes, 2009
In this paper a differential phase shift keying (DPSK) subcarrier intensity modulated (SIM) free space optical (FSO) link is considered in negative exponential atmospheric turbulence environment.
Ghassemlooy, Zabih   +2 more
core   +2 more sources

Graphene Gold Nanoparticle Hybrid Based Near Infrared Photodetector [PDF]

open access: yes, 2017
This paper presents novel and simplistic approach towards the development of graphene based near infrared (NIR) photodetectors. The developed device comprises of Au nanoparticles integrated within the channel of the back-gated graphene field effect ...
Dahiya, R.   +4 more
core   +1 more source

Enhanced photoelectric and photothermal responses on silicon platform by plasmonic absorber and omni-schottky junction [PDF]

open access: yes, 2017
Recent progresses in plasmon-induced hot electrons open up the possibility to achieve photon harvesting beyond the fundamental limit imposed by band-to-band transitions in semiconductors.
Abb   +47 more
core   +1 more source

Photo-FETs: phototransistors enabled by 2D and 0D nanomaterials [PDF]

open access: yes, 2016
The large diversity of applications in our daily lives that rely on photodetection technology requires photodetectors with distinct properties. The choice of an adequate photodetecting system depends on its application, where aspects such as spectral ...
Konstantatos, Gerasimos, Kufer, Dominik
core   +2 more sources

Long-range correlation of thermal radiation [PDF]

open access: yes, 1998
A general theory is presented for the spatial correlations in the intensity of the radiation emitted by a random medium in thermal equilibrium. We find that a non-zero correlation persists over distances large compared to the transverse coherence length ...
Beenakker, C. W. J., Patra, M.
core   +4 more sources

Conditional generation of arbitrary single-mode quantum states of light by repeated photon subtractions

open access: yes, 2005
We propose a scheme for the conditional generation of arbitrary finite superpositions of (squeezed) Fock states in a single mode of a traveling optical field.
Cerf, Nicolas J.   +2 more
core   +1 more source

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