Results 181 to 190 of about 157,712 (295)

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Leveraging Time-Frequency Distribution Priors and Structure-Aware Adaptivity for Wideband Signal Detection and Recognition in Wireless Communications. [PDF]

Sensors (Basel)
Wang X, Xu H, Qi Z, Meng Q, Fan H, Shi Y, Le W.   +6 more
europepmc   +1 more source

Dirac Surface‐State Driven Broad Spectral Band Low Quantum Energy Photoresponse in Quaternary Topological BiSbSe2Te

Advanced Science, EarlyView.
Quaternary topological BiSbSe2Te are synthesized and demonstrates a broad spectral band photoresponse, ranging from infrared to terahertz and to millimeter waves, with a particular excellence on detection of low quantum energy terahertz photons. The observed photoresponse is attributed to the excitation of plasmonic nonequilibrium electrons originating
Tianning Zhang, Jinchao Tong, Jiantian Zhang, Peng Yu, Heng Luo, Luo Yan, Boyu Yang, Tiantian Huang, Junhui Ran, Yan Chen, Liujiang Zhou, Xin Chen, Ning Dai, Jianlu Wang, Junhao Chu   +14 more
wiley   +1 more source

Miniaturised wideband metasurface polarisation converter with high angular stability. [PDF]

Sci Rep
Nkimbeng CHS, Do S, Wang H, Yoon D, Lee H, Park YB, Park I.   +6 more
europepmc   +1 more source

Superradiance and Broadband Emission Driving Fast Electron Dephasing in Open Quantum Systems

Advanced Science, EarlyView.
We uncover the physical origin of ultrafast electron dephasing in solid‐state high‐harmonic generation by simulating the Lindblad equation for the dissipative Hubbard model. Coexistence of Dicke superradiance and broadband emission is revealed, whose destructive interference shortens the effective scattering time and provides a unified picture of ...
Gimin Bae, Youngjae Kim, Jae Dong Lee
wiley   +1 more source

IPFSCNN: A Time-Frequency Fusion CNN for Wideband Spectrum Sensing. [PDF]

Sensors (Basel)
Kwon SY, Park DH, Kim HN.
europepmc   +1 more source

Toward Next‐Generation High‐Speed Communication and Imaging: Solution‐Processed Sb2(S,Se)3/CdS Heterojunction for Ultrafast Self‐Powered Photodetector

Advanced Science, EarlyView.
A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao, Yichao Wang, Jingxuan Bian, Hailong Wang, Yongqiang Wang, Jinpeng Xu, Junwei Chen   +6 more
wiley   +1 more source

Forked-Crossing Metasurface for Multi-Band Polarization Conversion with Distinct Bandwidths. [PDF]

Micromachines (Basel)
Zhang P, Zhang Y, Li Z, Yang R.
europepmc   +1 more source

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

Advanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini, Jaspreet Walia, Luis Angel Mayoral‐Astorga, Hyung Woo Choi, Arnaud Weck, Pierre Berini   +5 more
wiley   +1 more source

Impact of wideband phase-sensitive inversion recovery motion corrected late gadolinium imaging on 3T cardiac magnetic resonance image quality and diagnostic utility in patients with cardiac implantable electronic devices. [PDF]

Heart Rhythm O2
Black C, Calcagno T, Liu Y, Bi X, Lockwood D, JeanBlanc G, Harris R, Wu J, Santangeli P, Sroubek J, Higuchi K, Chung M, Wazni O, Nguyen C, Kwon DH.   +14 more
europepmc   +1 more source