Results 101 to 110 of about 1,055,412 (359)

Non-volatile silicon photonic memory with more than 4-bit per cell capability [PDF]

open access: yesarXiv, 2019
We present the first demonstration of an integrated photonic phase-change memory using GeSbTe-225 on silicon-on-insulator and demonstrate reliable multilevel operation with a single programming pulse. We also compare our results on silicon with previous demonstrations on silicon nitride.
arxiv  

The Potential of Singlet Fission Photon Multipliers as an Alternative to Silicon-based Tandem Solar Cells [PDF]

open access: yes, 2018
Singlet fission, an exciton multiplication process in organic semiconductors which converts one singlet exciton into two triplet excitons is a promising way to reduce thermalization losses in conventional solar cells. One way to harvest triplet excitons is to transfer their energy into quantum dots, which then emit photons into an underlying solar cell.
arxiv   +1 more source

Coupling strategies for silicon photonics integrated chips [Invited]

open access: yesPhotonics Research, 2019
Over the last 20 years, silicon photonics has revolutionized the field of integrated optics, providing a novel and powerful platform to build mass-producible optical circuits.
R. Marchetti   +4 more
semanticscholar   +1 more source

Silicon Photonics Optical Frequency Synthesizer

open access: yesLaser & Photonics reviews, 2020
The knowledge of the exact frequency of an optical source has always been one of the ultimate goals in optics. Since the discovery of the laser, complex systems have been developed to address this challenge.
Neetesh Singh   +9 more
semanticscholar   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

open access: yesAdvanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia   +9 more
wiley   +1 more source

Emerging heterogeneous integrated photonic platforms on silicon

open access: yesNanophotonics, 2015
Silicon photonics has been established as a mature and promising technology for optoelectronic integrated circuits, mostly based on the silicon-on-insulator (SOI) waveguide platform.
Fathpour Sasan
doaj   +1 more source

Novel Measures for Thermal Management of Silicon Photonic Optical Phased Arrays

open access: yesIEEE Photonics Journal, 2019
Silicon photonics has become a promising technology for fabrication of compact, highly integrated systems. When dealing with phase sensitive silicon photonic components, however, temperature control and in particular, reduction of temperature gradients ...
Pedro Andrei Krochin Yepez   +3 more
doaj   +1 more source

Quantum-dot single-photon source on a CMOS silicon photonic chip integrated using transfer printing [PDF]

open access: yesarXiv, 2018
Silicon photonics is a powerful platform for implementing large-scale photonic integrated circuits (PICs), because of its compatibility with mature complementary-metal-oxide-semiconductor (CMOS) technology. Exploiting silicon-based PICs for quantum photonic information processing (or the so-called silicon quantum photonics) provides a promising pathway
arxiv  

Tailoring Hole‐Blocking Layers Enables a Versatile Approach for Fast Photomultiplication‐Type Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates the role of hole‐blocking layers (HBLs), particularly the combination of two HBLs in photomultiplication‐type organic photodetectors (PM‐OPDs), which results in high gain and record‐fast response. The proposed HBL strategy also allows for the use of photoactive layer with balanced donor–acceptor stoichiometry, which can be ...
Awais Sarwar   +7 more
wiley   +1 more source

Wide-span and tunable-wavelength photon pairs around 1.55 μm from a silicon nanophotonic chip [PDF]

open access: yesarXiv, 2013
Using a compact optically-pumped silicon nanophotonic chip consisting of coupled silicon microrings, we generate photon pairs in multiple pairs of wavelengths around 1.55 \mu m. The wavelengths are tunable over several nanometers, demonstrating the capability to generate wavelength division multiplexed photon pairs at freely-chosen telecommunications ...
arxiv  

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