Results 241 to 250 of about 18,792 (313)

High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands

Laser &Photonics Reviews, EarlyView.
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan, Deming Kong, Yong Liu, Yunhong Ding, Hao Hu   +4 more
wiley   +1 more source

Resonant laser excitation for nanoscale photocatalytic gold growth on patterned templates. [PDF]

Sci Rep
Schardt J, Paulsen M, Abshari F, Gerken M.   +3 more
europepmc   +1 more source

Grating‐Lens Empowered Metafiber for Large‐Angle Light Collection With 3D Nanoprinted Structures

Laser &Photonics Reviews, EarlyView.
A grating‐lens‐based Metafiber enables efficient light coupling into single‐mode fibers at large incidence angles. By combining diffraction and focusing on the fiber facet using a 3D nanoprinted holographic structure, light is selectively coupled only at specific angles while suppressing unwanted signals. This approach achieves high coupling efficiency
Jun Sun, Markus A. Schmidt
wiley   +1 more source

Methods and Strategies for Enhancing the Performance of PQ/PMMA Photopolymers for Holographic Data Storage. [PDF]

Polymers (Basel)
Wu J, Peng L, Wu H, Xiong R, Huang J, Wu E, Tan X.   +6 more
europepmc   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

A high transmission tender X-ray monochromator employing a matched pair of multilayer grating and mirror. [PDF]

J Synchrotron Radiat
Dennetiere D, Moreno T, Capitanio B, Thomasset M, Delmotte F, Soufli R, Burcklen C, Meltchakov E, Ciatto G, Fontaine P, Mercère P, Polack F.   +11 more
europepmc   +1 more source

Novel Sulfur‐Rich Polymers from Inverse Vulcanization as Functional Building Blocks for Photonics

Macromolecular Rapid Communications, EarlyView.
Isopropenyl aromatic comonomers, in particular novel 2,7‐diisopropenylfluorene and 2,8‐diisopropenyldibenzothiophene, synthesized by sustainable, facile, single‐step SMCCR from available brominated substrates are exploited in the Inverse Vulcanization process to obtain functional Sulfur‐rich macromolecular materials.
Raimondo Insogna, Fabiano Martorelli, Daniela Di Fonzo, Martina Martusciello, Roberto Utzeri, Angelo Angelini, Davide Comoretto, Paola Stagnaro   +7 more
wiley   +1 more source

Rapid and quantitative phage susceptibility test by ramanome

mLife, EarlyView.
Abstract Antimicrobial resistance poses an escalating global threat, renewing interest in bacteriophage therapy as a precision alternative to antibiotics. However, clinical translation remains hindered by the lack of rapid and quantitative phage susceptibility testing (PST) platforms capable of evaluating host range, infection potency, and effective ...
Xiao Han, Xiaofu Wan, Yang Zhou, Xiaoting Fu, Xiaoshan Zheng, Bo Gao, Shi Huang, Anle Ge, Jiadong Huang, Hongzhou Lu, Jian Xu   +10 more
wiley   +1 more source

Simulation and Experiment of Tilted Fiber Bragg Grating Humidity Sensor Coated with PVA/GO Nanofiber Films by Electrospinning. [PDF]

Sensors (Basel)
Deng L, Sun H, Xi J, Yang Y, Liu X, Jian C, Li X, Li J.   +7 more
europepmc   +1 more source

Biogeography and diversification patterns in the Irano‐Turanian biodiversity hotspots inferred from a molecular phylogeny of the subendemic Iris subgenus Scorpiris (Iridaceae)

Nordic Journal of Botany, EarlyView.
The Irano‐Turanian Floristic Region harbors a rich flora, but our understanding of the development of this diversity is limited by a lack of data on phylogenetic relationships and biogeographic patterns of endemic and more widespread plants. Hypotheses of in situ diversification versus allopatric diversification were tested using Iris subgen. Scorpiris,
Mona Salimbahrami, Hojjatollah Saeidi, Ali Bagheri, Carol A. Wilson, Gerald M. Schneeweiss   +4 more
wiley   +1 more source