Results 231 to 240 of about 201,674 (321)

Guiding, bending, and splitting of electromagnetic waves in highly confined photonic crystal waveguides

, 2001
Mehmet Bayındır, Ekmel Özbay, Burak Temelkuran, M. M. Sigalas, C. M. Soukoulis, R. Biswas, Kai‐Ming Ho   +6 more
openalex   +2 more sources

Decoding Directional Control in Metal‐Assisted Chemical Etching via Catalyst Architecture

Advanced Materials, EarlyView.
Metal‐assisted chemical etching (MaCE) enables silicon nanostructure fabrication but suffers from isotropic undercutting. This study highlights the critical role of catalyst morphology in etching directionality. High‐aspect‐ratio catalysts induce lateral etching, while thermal treatment at 450 °C stabilizes catalyst geometry, promoting vertical etching.
Yejin Han, Jihwan Jeong, Hyein Cho, Yebin Ahn, Soohyeok Park, HyeonSeok Kim, Jae Yeong Shin, Min‐Joon Park, Taehyo Kim, Han‐Don Um   +9 more
wiley   +1 more source

Plasma photonic crystal 'kaleidoscope' with flexible control of topology and electromagnetism. [PDF]

Front Optoelectron
Wang J, Liu S, Fan W, Wang S, Lu C, He Y, Liu F, Hu X.   +7 more
europepmc   +1 more source

Narrow-band microcavity waveguides in photonic crystals [PDF]

, 2001
Amir Boag, Ben Z. Steinberg
openalex   +1 more source

Emergent Locomotion in Self‐Sustained, Mechanically Connected Soft Matter Rings

Advanced Materials, EarlyView.
Thermally fueled, self‐moving twisted rings made from liquid crystal elastomers are investigated. By studying single rings and linked knots, it is shown how autonomous locomotion emerges through coupling between the rings. The movement is programmable via handedness control at connection points, offering insights into collective behavior and ...
Hongshuang Guo, Kai Li, Arri Priimagi, Hao Zeng   +3 more
wiley   +1 more source

Pentagonal photonic crystal mirrors: scalable lightsails with enhanced acceleration via neural topology optimization. [PDF]

Nat Commun
Norder L, Yin S, de Jong MHJ, Stallone F, Aydogmus H, Sberna PM, Bessa MA, Norte RA.   +7 more
europepmc   +1 more source

Mid-infrared photonic-crystal distributed-feedback laser with enhanced spectral purity and beam quality [PDF]

, 2001
W. W. Bewley, C. L. Felix, I. Vurgaftman, R.E. Bartolo, J. R. Lindle, J. R. Meyer, H. Lee, Ramon U. Martinelli   +7 more
openalex   +1 more source

Conjugation Pathway of Benzobisoxazoles in Polymer Donors Mediates the Charge Management and Enables Organic Solar Cells with Record Certified Efficiency

Advanced Materials, EarlyView.
Herein, the conjugation pathway isomerism of the benzobisoxazole (BBO) building block is systematically compared, by which a certified efficiency of 19.1% is obtained in corresponding all‐polymer solar cells. Abstract Charge management plays a pivotal role in achieving high‐performance bulk heterojunction (BHJ) organic solar cells (OSCs). In this study,
Miao Liu, Lunbi Wu, Yulong Hai, Yongmin Luo, Yao Li, Rouren Chen, Yue Ma, Tao Jia, Qingduan Li, Sha Liu, Ruijie Ma, Yue‐Peng Cai, Jiaying Wu, Gang Li, Shengjian Liu   +14 more
wiley   +1 more source

Topological Photonic Crystal Sensors: Fundamental Principles, Recent Advances, and Emerging Applications. [PDF]

Sensors (Basel)
Abood I, El Soliman S, He W, Ouyang Z.
europepmc   +1 more source

Materials and Device Engineering Perspective: Recent Advances in Organic Photovoltaics

Advanced Materials, EarlyView.
This review article provides a comprehensive overview of recent advances in organic photovoltaics (OPVs), covering key aspects such as material development, morphology control, stability challenges, and emerging applications—including semitransparent OPVs.
Ying Zhang, Hao Xia, Jiangsheng Yu, Yang Yang, Gang Li   +4 more
wiley   +1 more source