Results 111 to 120 of about 1,081,560 (171)

A compact two-dimensional grating coupler used as a polarization splitter

, 2003
We demonstrate a novel polarization splitter based on a two-dimensional grating etched in a silicon-on-insulator waveguide. The device couples orthogonal modes from a single-mode optical fiber into identical modes of two planar ridge waveguides.
De La Rue, RM, Baets, Roel, De La Rue, R.M., Baets, R, FRANDSEN, L, Tailaert, D., Frandsen, LH, Borel, Peter Ingo, BOREL, P, Taillaert, Dik, DE LA RUE, R, Rue, R.M. de la, Taillaert, Dirk, Frandsen, L.H., Taillaert, D, Chong, H, Chong, H., Baets, R., Borel, PI, Frandsen, Lars Hagedorn, Taillaert, D., Borel, P.I.   +21 more
core   +1 more source

Flexible photonic crystal membranes with nanoparticle high refractive index layers

Beilstein Journal of Nanotechnology, 2017
Flexible photonic crystal slabs with an area of 2 cm2 are fabricated by nanoimprint replication of a 400 nm period linear grating nanostructure into a ≈60 µm thick polydimethylsiloxane membrane and subsequent spin coating of a high refractive index ...
Torben Karrock, Moritz Paulsen, Martina Gerken   +2 more
doaj   +1 more source

A high‐energy X‐ray beamline for materials science research at SPring‐8: BL15XU

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1554-1566, September 2026.
The Japanese synchrotron facility SPring‐8 has recently relaunched BL15XU as a high‐energy X‐ray beamline for materials science research. A comprehensive description of the technical details and science cases is presented.The high‐energy X‐ray beamline BL15XU is designed to drive advancements in materials science and high‐pressure research by ...
Hiroyuki Ohsumi, Yuji Higo, Yujiro Hayashi, Jaemyung Kim, Noriyoshi Tsujino, Sho Kakizawa, Tetsuo Irifune, Tomohiro Ohuchi, Yoshio Kono, Hirokatsu Yumoto, Takahisa Koyama, Hiroshi Yamazaki, Yasunori Senba, Haruhiko Ohashi, Hidekazu Takano, Michihiro Sugahara, Taito Osaka, Makina Yabashi   +17 more
wiley   +1 more source

Deep‐Learning‐Assisted Design of Dynamically Tunable Near‐Infrared Dual‐Band Lithium Niobate Metamaterial Absorber for Optical Communication

Nanophotonics, Volume 15, Issue 16, 26 August 2026.
An end‐to‐end deep‐learning framework combining inverse prediction and gradient refinement enables rapid design of dynamically tunable lithium‐niobate metamaterial absorbers for optical communication. Near‐perfect dual‐band absorption is achieved at 1310 and 1550 nm with electro‐optic wavelength tuning.
Xiajun Liu, Zexuan Zhang, Chenxi Su, Mei Wang, Feng Xia, Peng Sun, Li Dong, Maojin Yun   +7 more
wiley   +1 more source

Routing valley exciton emission of a WS₂ monolayer via delocalized Bloch modes of in-plane inversion-symmetry-broken photonic crystal slabs. [PDF]

Light Sci Appl, 2020
Wang J, Li H, Ma Y, Zhao M, Liu W, Wang B, Wu S, Liu X, Shi L, Jiang T, Zi J.   +10 more
europepmc   +1 more source

Evolution of Degenerate Pairs of Bound States in the Continuum With Broken Symmetry

IEEE Photonics Journal
Bound states in the continuum (BICs) with exceptionally high quality factors ($Q$ factors) have become focal points in photonic device research, finding applications in nonlinear enhancement, laser generation, sensing, and beyond.
Wenzheng Zhao, Weimin Wang, Zhao-xian Chen, Xingsheng Luan, Jun-long Kou, Yan-qing Lu   +5 more
doaj   +1 more source

Algorithms and technologies for photonic crystal modelling

, 2009
In this thesis an investigation into the behaviour of light when passing through photonic crystals was carried out using numerical methods. Photonic crystals are expensive and difficult to fabricate so there is a requirement for computer simulations that
Hart, Elizabeth E, Hart, Elizabeth E.
core   +1 more source

Optical moiré bound states in the continuum

Nature Communications
Trapping electromagnetic waves within the radiation continuum holds significant implications in the field of optical science and technology. Photonic bound states in the continuum (BICs) present a distinctive approach for achieving this functionality ...
Haoyu Qin, Shaohu Chen, Weixuan Zhang, Huizhen Zhang, Ruhao Pan, Junjie Li, Lei Shi, Jian Zi, Xiangdong Zhang   +8 more
doaj   +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

Optofluidic vapor sensing with free-space coupled 2D photonic crystal slabs. [PDF]

Sci Rep, 2019
Liu Y, Wang S, Biswas P, Palit P, Zhou W, Sun Y.   +5 more
europepmc   +1 more source