Results 311 to 320 of about 2,316,597 (371)

Interface Topology Driven Loss Minimization in Integrated Photonics: THz Ultrahigh‐Q Cavities and Waveguides

Advanced Materials, EarlyView.
Compact, robust, and ultralow‐loss on‐chip photonic devices are essential for densely integrated photonic chips. Here, the underlying radiation mechanism in topological valley edge states is unveiled and a new methodology of interface topology driven bandgap and wavevector engineering is proposed to thoroughly suppress their radiation losses, thereby ...
Zhonglei Shen, Yi Ji Tan, Wenhao Wang, Thomas Caiwei Tan, Ruqiang Yan, Liuyang Zhang, Ranjan Singh   +6 more
wiley   +1 more source

Small-angle X-ray scattering profile calculation for high-resolution models of biomacromolecules. [PDF]

J Appl Crystallogr
Lytje K, Pedersen JS.
europepmc   +1 more source

Revisiting Ferroelectric‐Gated Phototransistors: A Tripartite Synapse‐Inspired Approach to In‐Sensor Image Processing

Advanced Materials, EarlyView.
A ferroelectric‐gated phototransistor (FGPT) enables linear and multilevel modulation of photoconductance through partial polarization switching and photogating effects. The device achieves photonic non‐volatility over a 153 dB dynamic range and performs in‐sensor processing under unstructured illumination, demonstrating enhanced face recognition ...
Yubin Lee, Dong Hyun Seo, Jun Seo Lee, Jae Min Jeon, Hyung Rae Kim, Min Seok Kim, Chaehyeon Ahn, Sung‐Un An, Jihun Choi, Hyunseung Kim, Chang Kyu Jeong, Hyunseob Lim, Dong‐Ho Kang, Young Min Song   +13 more
wiley   +1 more source

High-Order Anharmonicities Shape Phonon Hydrodynamic Effects in Graphene. [PDF]

Nano Lett
Tur-Prats J, Han Z, Beardo A, Ruan X, Alvarez FX.   +4 more
europepmc   +1 more source

Standalone Integrated Magnonic Devices

Advanced Materials, EarlyView.
A standalone (not requiring external bias magnetic field) and tunable magnonic device is reported with all‐electric input and output, fully integrated on silicon (total footprint of 100 × 150 µm) and 3–8 GHz frequency band. This is achieved by monolithic integration of a CoFeB conduit with RF antennas and an assembly of NiFe and SmCo micromagnets ...
M. Cocconcelli, F. Maspero, A. Micelli, A. Toniato, A. Del Giacco, N. Pellizzi, A. E. Plaza, A. Cattoni, M. Madami, R. Silvani, C. Adelmann, A. A. Hamadeh, P. Pirro, S. Tacchi, F. Ciubotaru, R. Bertacco   +15 more
wiley   +1 more source

Programming Defects and Cavities into Colloidal Crystals Engineered With DNA

Advanced Materials, EarlyView.
Seed‐mediated crystallization is adapted for colloidal crystals to design cavities and defect architectures through chemically programmed DNA sequences and appropriate seed particle geometry. This synthetic approach combines tenets from both atomic and colloidal crystallization to deliberately control defect formation in superlattices and enables the ...
Rachel R. Chan, Kaitlin M. Landy, Kyle J. Gibson, Sachin P. Kulkarni, Junjing Deng, Byeongdu Lee, Joseph McCourt, Soenke Seifert, Olivier J. G. L. Chevalier, Alexa M. Wong, Chaojian Chen, Peter H. Winegar, Koray Aydin, Chad A. Mirkin   +13 more
wiley   +1 more source

Quantitative Characterization of Bubble Defects in Ultra-Low Expansion Quartz Glass via Ultrasonic Interaction. [PDF]

Materials (Basel)
Zhou L, Wei W, Tang Z, Qi X, Wu Z, Deng H.   +5 more
europepmc   +1 more source

Environmental Control of Ferroelectricity in Hafnia Films

Advanced Materials, EarlyView.
A reversible transition from nonferroelectric to ferroelectric behavior is achieved in hafnia films by modulating the surrounding atmosphere. The domain relaxation dynamics exhibit high sensitivity to environmental factors, including gas composition (ambient, N2, CO2, O2) and relative humidity, highlighting the crucial role of the measurement ...
Waseem Ahmad Wani, Nicolas K. Lam, Kristina M. Holsgrove, Gerald Bejger, Tinsae Alem, Kory Burns, Stephen J. McDonnell, Christina M. Rost, Amit Kumar, Jon F. Ihlefeld, Brian J. Rodriguez   +10 more
wiley   +1 more source