Results 131 to 140 of about 2,079,335 (239)

Quantization of Polaritons Confined in Dielectric Structures

Laser &Photonics Reviews, EarlyView.
This study addresses the limitations of the Hopfield model of strong light‐matter coupling in the case of structured dieletrics. A method to derive quantum models in the polariton basis using Bogoliubov transformation and third quantization is introduced, demonstrating how to boost interaction strength and engineer nonlocal interactions for strongly ...
Amir Rahmani, Dogyun Ko, Maciej Dems, Andrzej Opala, Michał Matuszewski   +4 more
wiley   +1 more source

High-Speed Single-Physical-Hardware Deep Photonic Reservoir Computing Based on a Spin-VCSEL

Photonics
As a bio-inspired paradigm fully implementable in optics, deep reservoir computing (RC) has emerged as a powerful computational framework for efficient information processing.
Beiyi Liu, Letao Mao, Shenkai Zhang, Yongrui Li, Deyu Cai, Yu Huang, Nianqiang Li   +6 more
doaj   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

Laser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu, Yuk Fai Cheung, Hoi Wai Choi   +2 more
wiley   +1 more source

Room‐Temperature Polariton Condensation Into Superscar Modes in Growth‐Defined Triangular Micro‐Prism Resonators

Laser &Photonics Reviews, EarlyView.
High‐Q superscar modes in growth‐defined triangular GaN micro‐prism resonators enable strong exciton–photon coupling and room‐temperature polariton condensation, offering a scalable platform for integrated III‐nitride polariton devices. ABSTRACT Group III‐nitride semiconductors are regarded as key materials for realizing polariton devices operating at ...
Chan‐Young Sung, Jungwon Kim, Daegwang Choi, Hyun Gyu Song, Yong‐Hoon Cho   +4 more
wiley   +1 more source

Programmable Temporal Dynamics in a Laser Neuron for High‐Speed Photonic Reservoir Computing

Laser &Photonics Reviews, EarlyView.
Memory and nonlinearity play crucial roles in reservoir computing (RC). An adaptive photonic RC system is demonstrated based on a high‐speed laser graded neuron, whose dynamics, encompassing memory and nonlinearity, can be flexibly programmed through a straightforward bias‐tuning approach.
Yikun Nie, Dongliang Wang, Bo Yang, Jiayong Peng, Zihao Wang, Chaoran Huang   +5 more
wiley   +1 more source

Automatic insect identification, counting, and monitoring techniques: a review

Pest Management Science, EarlyView.
Automated insect monitoring increasingly integrates optical, acoustic, infrared, radar, electrostatic, and biosensing technologies with artificial intelligence. No single approach is universally optimal; reliable deployment depends on task‐specific validation, representative datasets, robustness under field conditions, energy autonomy, connectivity ...
Mariano González García, Juan Carlos Noguera Polania, Rosana González Combarros, José Ignacio López Sánchez   +3 more
wiley   +1 more source

Simultaneous Multi-Task Photonic Reservoir Computing via Virtual Node Partitioning in a Single Optical-Feedback Semiconductor Laser

Engineered Science
This work presents a multi-task reservoir computing framework based on virtual node partitioning (VNP) within a single optical-feedback semiconductor laser. By partitioning the virtual nodes of a solitary delay loop into distinct subspaces—each dedicated
Jianglong Zhuang, Bin Liu, Xu Liu, Guizheng Guan   +3 more
doaj   +1 more source

Invisible near‐infrared thermo‐stimulated luminescence from carbon dots enabled by stepwise energy transfer for concealed information encryption

Responsive Materials, EarlyView.
A fully metal‐free near‐infrared (NIR) thermo‐stimulated luminescent system is developed by embedding carbon dots into a carbon nitride matrix and integrating multistage Förster resonance energy transfer. The system exhibits long‐term charge retention, rewritable optical memory, and highly concealed NIR readout, promising for secure data encryption and
Kai Jiang, Jun Jiang, Zihan Cheng, Hao Cui, Jingmin Zhang, Hengwei Lin   +5 more
wiley   +1 more source

Carbon dots in photocatalytic water splitting and related proton/electron‐coupled reactions: Multiscale regulation of charge dynamics and interfacial processes

Responsive Materials, EarlyView.
This review summarizes CD‐based photocatalytic water splitting as a multiscale charge‐utilization process, linking photoexcitation, charge separation, interfacial transfer, charge storage, and catalytic consumption. It highlights how CD structures and interfaces regulate charge pathways and reaction microenvironments, and how advanced characterization,
Fan Liao, Yang Liu, Zhenhui Kang
wiley   +1 more source

Integrated Delay Based Photonic Reservoir Computing

, 2018
We have analyzed the performance of a reservoir computing system based on a semiconductor laser with delayed optical output feedback on timeseries prediction and bit parity tests. Both laser and feedback section are fully integrated on an InP based photonic chip fabricated on the Jeppix platform.
Harkhoe, K., Verschaffelt, G., Katumba, Andrew, Bienstman, Peter, Van der Sande, G.   +4 more
openaire   +2 more sources