Results 41 to 50 of about 2,794,441 (253)

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Transmission spectrum optimization of superconducting photonic crystals based on the moving asymptotic method

Next Materials
Superconducting photonic crystals have emerged as a promising platform for advanced photonic devices, however the precise control of their photonic band gaps remains a fundamental challenge. This study proposes an efficient topology optimization approach
Lihong Han, Shuping Song, Xiaoning Guan, Shuzhen Lu, Pengfei Lu   +4 more
doaj   +1 more source

Multimodal Optoelectronic Synapses for Neuromorphic Intelligence: Coupling Light, Electrical, Thermal, and Beyond

Advanced Functional Materials, EarlyView.
This review revisits optoelectronic neuromorphic devices that extend from unimodal sensing toward multimodal perception. Five types of stimuli‐to‐output information flow that are classified based on the device roles within the system and applications are summarized and discussed.
Jihyun Shin, Junhyung Cho, Wangmyung Choi, Jaehyun Hur, Jae Kyeong Jeong, Ulrike Kraft, Hocheon Yoo   +6 more
wiley   +1 more source

Band gaps and cavity modes in dual phononic and photonic strip waveguides

AIP Advances, 2011
We discuss theoretically the simultaneous existence of phoxonic, i.e., dual phononic and photonic, band gaps in a periodic silicon strip waveguide. The unit-cell of this one-dimensional waveguide contains a hole in the middle and two symmetric stubs on ...
Y. Pennec, B. Djafari Rouhani, C. Li, J. M. Escalante, A. Martinez, S. Benchabane, V. Laude, N. Papanikolaou   +7 more
doaj   +1 more source

Design of 2D TeraHertz band-gap photonic waveguides using an accelerated integral equation technique [PDF]

, 2009
This paper describes the application of the buffered block forward backward (BBFB) method to the problem of modeling 2D terahertz (THz) photonic band gap waveguides at the frequency of 3 THz.
D. Bogusevschi, E. Degirmenci, Degirmenci, Elif, Bogusevschi, Diana, C. Brennan, Brennan, Conor, Landais, Pascal, P. Landais   +7 more
core   +2 more sources

Reservoir‐Driven Neuromorphic Computing Based on Composite Rare‐Earth/Transition Metal Oxide Memristor

Advanced Functional Materials, EarlyView.
A defect‐engineered Ag/Gd2O3:Nb2O5/Pt rare earth composite oxide memristor enables stable multilevel reservoir states through pulse driven conductance modulation. Experimentally measured device responses are incorporated into a device aware reservoir computing framework for CIFAR‐100 image classification, highlighting the potential of rare earth ...
Hammad Ghazanfar, Haider Abbas, Muhammad Rabeel, Honggyun Kim, Ghulam Dastgeer, Muhammad Nasim, Furqan Zahoor, Yawar Abbas, Waqas Ahmad, Deok‐kee Kim   +9 more
wiley   +1 more source

Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling

Advanced Functional Materials, EarlyView.
Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee, Hiroya Nishikawa, Tae‐Woong Moon, Dong‐Ha Kim, Fumito Araoka, Suk‐Won Choi   +5 more
wiley   +1 more source

THz waveguide and bends based on metallic photonic crystals [PDF]

, 2009
Metallic band-gap structures for THz waveguide and bends have been simulated using the finite element method.
E. Degirmenci, Surre, Frederic, Degirmenci, Elif, Landais, Pascal, F. Surre, P. Landais   +5 more
core   +1 more source

Electrical‐Programming‐Free Neural Crossbars Enabled by Photochemical Weight Patterning

Advanced Functional Materials, EarlyView.
A flexible neural‐crossbar hardware system enabled by electrical‐programming‐free, mask‐defined, array‐parallel photochemical weight patterning is demonstrated. Trained weights are physically implemented across the array, supporting multilevel programming, bending‐stable operation and reconfiguration, substrate reuse, and low‐energy readout while ...
Hyo‐Bin Jang, Ji‐Hoon Choi, Juhyung Seo, Seungwoo Baek, Hocheon Yoo, Hea‐Lim Park   +5 more
wiley   +1 more source

Calculation of photonic band-gap of one dimensional photonic crystal

, 2009
Photonic crystal is a composite dielectric with periodic modulation of refractive index that brings about unique photonic band-gap effect by which light could be totally reflected on the surface of such material regardless of any incident angle or mode ...
Zhong, L, Zhao, J, Li, X, Chen, G
core   +1 more source