Results 61 to 70 of about 11,380 (266)
Advanced Materials, EarlyView.Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag +8 more
wiley +1 more source
Frontiers in PhysicsThis paper presents the design of a high-efficiency spot size converter (SSC) for photonic crystal fiber (PCF) to silicon-based waveguides, utilizing composite optical waveguide structures.
Haoyu Li +15 more
doaj +1 more source
Advanced Materials, EarlyView.α‐MoO3 is established as a high‐index, low‐loss anisotropic platform bridging mid‐infrared polaritonics and ultraviolet‐visible nanophotonics. Spectroscopic ellipsometry and calculations reveal refractive indices exceeding 3.9, with the largest in‐plane birefringence among transparent layered crystals at 425–500 nm, enabling zero‐order UV waveplates ...
Adilet N. Toksumakov +14 more
wiley +1 more source
Silicon-Based Optical Waveguide Crossings for High-Capacity Transmission: A Review
PhotonicsAs silicon photonics technology advances toward high-density integration scenarios—such as large-scale matrices, optical phased arrays, and optical neural networks—single-layer waveguide routing encounters severe topological challenges, rendering ...
Bin Ni +6 more
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Experimental Demonstration of Luneburg Waveguides
Photonics, 2015 Transformation optics gives rise to numerous unusual optical devices, such as novel metamaterial lenses and invisibility cloaks. Very recently, Mattheakis et al. (Luneburg lens waveguide networks. J. Opt.
Vera N. Smolyaninova +6 more
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Advanced Materials, EarlyView.This work investigates the heterogeneous nucleation of CsPbBr3${\rm CsPbBr}_3$ nanocrystal superlattices along the faces of 2D PEA2PbBr4${\rm PEA}_2{\rm PbBr}_4$ layered perovskite microcrystals. Core–crown and core–shell heterostructure morphologies are obtained.
Umberto Filippi +6 more
wiley +1 more source
Design and Study of Strip-Slot Waveguide Structure for Dispersion Analysis
IEEE Photonics Journal, 2016 We propose a slot waveguide design for dispersion compensation at the wavelength of 1500 nm. The proposed structure is based on coupled strip slot waveguide.
Nandam Ashok, Yeung Lak Lee, WooJin Shin
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Advanced Materials, EarlyView.Crystal orientation and domain engineering enable bulk mirror symmetry breaking in Bi1−xSbx, resulting in ultralow current‐induced switching of perpendicular magnetization without an external field. By exploiting single‐domain Bi1−xSbx (012), the authors demonstrate an out‐of‐plane spin Hall conductivity of ∼1.12×105ℏ2eΩ−1m−1$ \sim \!1.12 \ensuremath ...
Seungwon Rho +6 more
wiley +1 more source
All‐Amyloid Functional Coacervates
Advanced Materials, EarlyView.This study introduces an all‐amyloid interfacial complex coacervate technique that employs charge‐mediated or functionalization‐assisted complexation of oppositely charged food protein‐derived amyloid nanofibrils to engineer functional soft constructs across multiple length scales.
Seyyed Alireza Hashemi +4 more
wiley +1 more source