Results 31 to 40 of about 210,910 (249)

Short Communications: Para Clinical Science

RUHS Journal of Health Sciences
Not ...
Postgraduate Students-Paraclinical Sciences
doaj   +1 more source

Silicon–germanium receivers for short-wave-infrared optoelectronics and communications

Nanophotonics, 2020
Integrated silicon nanophotonics has rapidly established itself as intriguing research field, whose outlets impact numerous facets of daily life.
Benedikovic Daniel, Virot Léopold, Aubin Guy, Hartmann Jean-Michel, Amar Farah, Le Roux Xavier, Alonso-Ramos Carlos, Cassan Éric, Marris-Morini Delphine, Fédéli Jean-Marc, Boeuf Frédéric, Szelag Bertrand, Vivien Laurent   +12 more
doaj   +1 more source

Space‐Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping

Advanced Materials, EarlyView.
Space‐time coding conformal metasurfaces enable dynamic wave control on curved surfaces by combining programmable spatial patterns with temporal modulation. This study shows that a single conformal aperture can independently manipulate multiple frequency components, achieving multifunctional beam shaping and steering, with implications for ...
Filippo Pepe, Lei Zhang, Yi Ning Zheng, Xiao Qing Chen, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Tie Jun Cui, Vincenzo Galdi   +8 more
wiley   +1 more source

Smart and Secure Wireless Communications via Reflecting Intelligent Surfaces: A Short Survey

IEEE Open Journal of the Communications Society, 2020
With the emergence of the Internet of Things (IoT) technology, wireless connectivity should be more ubiquitous than ever. In fact, the availability of wireless connection everywhere comes with security threats that, unfortunately, cannot be handled by ...
Abdullateef Almohamad, Anas M. Tahir, Ayman Al-Kababji, Haji M. Furqan, Tamer Khattab, Mazen O. Hasna, Huseyin Arslan   +6 more
doaj   +1 more source

Ligand Engineering for Precise Control of Ultrathin CsPbI3 Nanoplatelet Superlattices for Efficient Light‐Emitting Diodes

Advanced Materials, EarlyView.
In this work, we introduce ancillary‐ligand‐mediated growth control of ultrathin CsPbI3 PeNPLs to achieve highly uniform thickness and reduced agglomeration. Strong ancillary‐ligand coordination to the perovskite surface regulates nucleation and improves surface passivation, enabling color‐pure emission and preferentially oriented superlattices.
Jongbeom Kim, Woo Hyeon Jeong, Junzhi Ye, Allison Nicole Arber, Vikram, Donghan Kim, Yi‐Teng Huang, Yixin Wang, Dongeun Kim, Dongryeol Lee, Chia‐Yu Chang, Xinyu Shen, Sung Yong Bae, Ashish Gaurav, Ye In Kim, Jinkyu Yang, Boseung Je, Changsoon Cho, Akshay Rao, Henry J. Snaith, M. Saiful Islam, Bo Ram Lee, Myoung Hoon Song, Robert L. Z. Hoye   +23 more
wiley   +1 more source

Electrical Resistivity Change Upon Crystallization as a Robust Descriptor for Metallic Glass Forming Ability

Advanced Materials, EarlyView.
Electrical resistivity change upon annealing is introduced as a rapid descriptor for identifying high glass‐forming ability in metallic glasses. High‐throughput combinatorial thin‐film libraries reveal that compositions exhibiting small resistivity changes correspond to sluggish crystallization behavior and known bulk metallic glass regions, enabling ...
Haechan Jo, Hongxi Duan, Mingxing Li, Liwei Hu, Yanhui Liu, Dongwoo Lee   +5 more
wiley   +1 more source

Single-and Dual-Band RF-Quasi-Reflectionless Planar Monopole Antennas and Their Application to Low-Reflection Antenna Arrays

IEEE Open Journal of Antennas and Propagation
An innovative family of planar monopole radiators with single- and dual-band operational characteristics and RF-quasi-reflectionless functionality is reported.
Runze Li, Li Yang, Zekai Luo, Xiu Yin Zhang, Roberto Gomez-Garcia   +4 more
doaj   +1 more source

Photo‐ and Thermally‐Induced Huge Layer Decoupling in Twisted Bilayer WSe2

Advanced Materials, EarlyView.
A newly developed automated dark‐field tomography visualizes twist‐angle‐dependent structural relaxation and quantifies 3D structures in twisted bilayer WSe2. This approach reveals the evolution of local stacking configurations, thermally induced sub‐ångström interlayer decoupling, and light‐driven interlayer expansion on picosecond timescales ...
A. Nakamura, Y. Chiashi, T. Shimojima, Y. Tanaka, S. Akatsuka, M. Sakano, S. Masubuchi, T. Machida, K. Watanabe, T. Taniguchi, K. Ishizaka   +10 more
wiley   +1 more source

Ultralow‐Dispersion Silicon THz Photonic Crystal Interconnects for Multichannel Datalinks

Advanced Materials, EarlyView.
An all‐silicon terahertz photonic crystal waveguide interconnect enables 452 Gbps aggregate data transfer through seven complex‐modulated channels. By revealing the impact of ultralow dispersion on link performance and achieving a record interconnect figure of merit, the work advances centimeter‐scale THz on‐chip communication for future data‐centre ...
Nikhil Navaratna, Thomas CaiWei Tan, Pascal Szriftgiser, Guillaume Ducournau, Ranjan Singh   +4 more
wiley   +1 more source

Large‐Area Printed PEDOT:PSS Shielding and Frequency Selective Surface (FSS) on Textiles

Advanced Materials Interfaces, EarlyView.
An all‐polymer e‐textile frequency selective surface (FSS) can present controlled shielding, presenting a competitive alternative to metal‐based inks. The results show how PEDOT: PSS‐based e‐textiles could be applied in RF devices for future wearable applications.
Benjamin King, Mahmoud Wagih
wiley   +1 more source