Results 41 to 50 of about 549,040 (242)

Noise and Information Capacity in Silicon Nanophotonics

IEEE Photonics Journal, 2015
Modern computing and data storage systems increasingly rely on parallel architectures. The necessity for high-bandwidth data links has made optical communication a critical constituent of modern information systems and silicon the leading platform for ...
Dimitris Dimitropoulos, Bahram Jalali
doaj   +1 more source

Stable Excitation of Orbital Angular Momentum States in Air-Core Fiber Seeded by an Integrated Optical Vortex Beam Emitter

IEEE Photonics Journal, 2020
We experimentally demonstrate excitation of orbital angular momentum states in an air-core fiber by a silicon integrated vortex beam emitter which is designed and fabricated to match the modes supported by the fiber. The coupling loss is measured to be &#
Jiamin Wang, Jan Markus Baumann, Jing Xu, Karsten Rottwitt, Yunhong Ding   +4 more
doaj   +1 more source

Nonlinear silicon nanophotonics for mid-infrared applications [PDF]

2011 ICO International Conference on Information Photonics, 2011
The silicon nanophotonic wire platform can be applied toward development of integrated optical devices for the generation and processing of mid-infrared light signals. The demonstration of a mid-infrared optical parametric amplifier will be reviewed, and recent work aimed at expanded gain bandwidth and reduced pump power requirements will be presented.
Green, William MJ, Liu, Xiaoping, Kuyken, Bart, Osgood, Richard M Jr, Roelkens, Günther, Baets, Roel, Vlasov, Yurii A   +6 more
openaire   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

Advanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain, Boyang Zheng, Sawani Datta, Kanchan Ulman, Jakob Henz, Matthew Wei‐Jun Liu, Van Dong Pham, Wen He, Chengye Dong, Li‐Syuan Lu, Alexander Vera, Nader Sawtarie, Wesley Auker, Ke Wang, Bob Hengstebeck, Zachary W. Henshaw, Shreya Mathela, Maxwell Wetherington, William H. Blades, Kenneth Knappenberger, Ursula Wurstbauer, Su Ying Quek, Ulrich Starke, Shengxi Huang, Vincent H. Crespi, Joshua A. Robinson   +25 more
wiley   +1 more source

Frequency comb generation in III-V-on-silicon photonic integrated circuits

, 2022
Paper IM2A.5We present our recent work on the realization of III-V-on-silicon mode-locked lasers and integrated nonlinear waveguides for the realization of integrated frequency ...
Leo, F., Roelkens, G., Dave, U., Uvin, S., Bente, E., Keyvaninia, S., Gasse, K. van, Kuyken, B., Wang, Z., Latkowski, S.   +9 more
core   +1 more source

High-efficiency self-focusing metamaterial grating coupler in silicon nitride with amorphous silicon overlay

Scientific Reports
Efficient fiber-chip coupling interfaces are critically important for integrated photonics. Since surface gratings diffract optical signals vertically out of the chip, these couplers can be placed anywhere in the circuit allowing for wafer-scale testing.
William Fraser, Daniel Benedikovic, Radovan Korcek, Maziyar Milanizadeh, Dan-Xia Xu, Jens H. Schmid, Pavel Cheben, Winnie N. Ye   +7 more
doaj   +1 more source

Controlled Growth of Boron Nitride in Various Phases

Advanced Materials Interfaces, EarlyView.
Phase‐selective boron nitride growth is presented as a unified materials‐design problem across hexagonal, rhombohedral, cubic, and amorphous phases. By linking synthesis routes to thermodynamic stability, kinetic accessibility, surface diffusion, interfacial templating, and energetic activation, this review clarifies how bonding and stacking are ...
Pan Wu, Kanghao Xie, Jiajie Qi, Xiaorui Zheng, Kaihui Liu, Xuedong Bai, Li Wang   +6 more
wiley   +1 more source

Nanophotonic Pockels modulators on a silicon nitride platform [PDF]

Nature Communications, 2018
AbstractSilicon nitride (SiN) is emerging as a competitive platform for CMOS-compatible integrated photonics. However, active devices such as modulators are scarce and still lack in performance. Ideally, such a modulator should have a high bandwidth, good modulation efficiency, low loss, and cover a wide wavelength range. Here, we demonstrate the first
Koen Alexander, John P. George, Jochem Verbist, Kristiaan Neyts, Bart Kuyken, Dries Van Thourhout, Jeroen Beeckman   +6 more
openaire   +6 more sources

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

Advanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri, Andrea Smeriglio, Svetlana Siprova, Olga Favale, Francesca Leone, Roberto Termine, Debora Policastro, Alessandra Crispini, Attilio Golemme, Nicolas Godbert, Iolinda Aiello, Antonio De Luca   +11 more
wiley   +1 more source

Erbium dopants in nanophotonic silicon waveguides

Optica, 2021
We perform resonant spectroscopy of erbium implanted into nanophotonic silicon waveguides, finding 1 GHz inhomogeneous broadening and homogeneous linewidths below 0.1 GHz. Our study thus introduces a promising materials platform for on-chip quantum information processing.
Weiss, Lorenz, Gritsch, Andreas, Merkel, Benjamin, Reiserer, Andreas   +3 more
openaire   +2 more sources