Results 131 to 140 of about 439,540 (206)

Parallel Vector Processing in Optical Computing With Jacobi Time‐Wave Packets

Laser &Photonics Reviews, EarlyView.
Functionality of a single neuron and state of the art photonic acceleration with a Mach‐Zehnder‐interferometer (MZI) mesh (i), a crossbar array (ii) and a micro ring resonator (MRR) array (iii). In the proposed Jacobi time‐wave packet approach (iv) a single modulator (here a ring modulator) is performing the whole scalar vector product in a single ...
Janosch Meier, Khaleda Mallick, Abhinand Venugopalan, Milind Bagul, Gouri Krishnan, Thomas Schneider   +5 more
wiley   +1 more source

Microwave Photon-Number Amplification

Physical Review X
We experimentally demonstrate a microwave photon-multiplication scheme which combines the advantages of a single-photon detector and a power meter by multiplying the incoming photon number by an integer factor. Our first experimental implementation achieves an n =
Albert, R., Griesmar, J., Blanchet, F., Martel, U., Bourlet, N., Hofheinz, M.   +5 more
openaire   +4 more sources

Dual‐Metasurface‐Integrated Fiber Array for Bidirectional Cylindrical‐Vector‐Beam Multiplexed Communication Using Off‐Axis Spatial Manipulation

Laser &Photonics Reviews, EarlyView.
A dual‐layer metasurface is integrated on a fiber‐array facet to realize compact, plug‐and‐play free‐space optical links with cylindrical vector beam (CVB) space‐division multiplexing. An optimized off‐axis collimation layer steers multiple channels, while a Dammann vortex layer performs polarization–topology conversion for bidirectional CVB (de ...
Xipeng Lu, Jinke Li, Jin Tae Kim, Shaoyan Li, Hongliang Li, Duk‐Yong Choi, Sang‐Shin Lee   +6 more
wiley   +1 more source

Analog Signal Processing Based on Silicon-Photonics and Its Application in Microwave Photonic Frontend

Dianxin kexue, 2015
Signal processors are one of the significant elements in microwave photonic frontends，which determines the working ability of the entire system in many aspects.The silicon-photonics-based signal processors are especially attractive for their compact size
Minghua Chen, Hongchen Yu, Jingjing Wang, Hongwei Chen, Shizhong Xie   +4 more
doaj   +2 more sources

Emergence of Rashba Spin‐Orbit Coupling in Staggered‐Gyromagnetic Photonic Crystals

Laser &Photonics Reviews, EarlyView.
Rashba spin‐orbit coupling emerges in a staggered‐gyromagnetic photonic crystal under a uniform out‐of‐plane magnetic bias. The staggered magnetization splits a four‐fold Dirac point into a Rashba band structure carrying helical spin textures, verified by a four‐band k‐p model.
Yao‐Ting Wang, Wenlong Gao
wiley   +1 more source

Drive‐Efficient GHz‐Rate Binary‐State Updates Enabled by VCSEL Polarization Switching

Laser &Photonics Reviews, EarlyView.
Photonic computing needs a compact node that can hold a binary state and update it fast. A vertical‐cavity surface‐emitting laser biased at its polarization‐switching point could serve as one: its two orthogonal linear polarizations are the two states, and a small electrical drive is enough to move the output from one state to the other at gigahertz ...
Zifeng Yuan, Beibei Lin, Yutong Liu, Wujie Fu, Yuan Gao, Tingting Chen, Aaron Danner   +6 more
wiley   +1 more source

Photonics Public Private Partnership & Photonics21

, 2016
Photonics 21 Mission and Life Science ...
Francesca Rossi, Roberto Pini, Photonics Unit   +2 more
core  

Wavefront Shaping for Optimal Extinction of Focused Light by Individual Nanoscatterers

Laser &Photonics Reviews, EarlyView.
Wavefront shaping enables near‐complete optical extinction by nanoscatterers separated from a planar reflector. Time‐reversed emission profiles provide optimal illumination conditions, yielding 70% extinction from a single plasmonic nanoparticle and up to 90% from sub‐wavelength nanoparticle clusters, offering a promising route to efficient in‐ and out‐
Nick Feldman, Joris Pals, Arie J. den Boef, F. Javier García de Abajo, Lyubov V. Amitonova, A. Femius Koenderink   +5 more
wiley   +1 more source

Near‐Infrared Soliton Crystal Generation in Silicon Resonators

Laser &Photonics Reviews, EarlyView.
Near‐infrared Kerr soliton generation in silicon is severely hindered by two‐photon and free‐carrier absorption. By combining transverse‐mode dispersion engineering with active free‐carrier extraction, monolithic silicon resonators support densely spaced, low‐noise soliton‐crystal combs spanning over 100 nm and, in a separate device, broadband ...
Yue Qin, Keyi Zhong, Yaojing Zhang, Hon Ki Tsang   +3 more
wiley   +1 more source

Leaky Topological Edge State Cavities for On‐Chip Terahertz Sensing

Laser &Photonics Reviews, EarlyView.
Engineering radiation leakage in topological edge state cavities (TESCs) turns a conventional loss channel into a resource for enhancing on‐chip terahertz‐matter interactions. Tailoring the radiation leakage of a valley photonic crystal produces guided TESC with loaded Q factors up to 14 148 and leaky TESC with 2.2‐fold higher sensitivity, reaching 150.
Wenhao Wang, Zhonglei Shen, Ranjan Singh
wiley   +1 more source