Results 51 to 60 of about 545,254 (302)
Donor‐Engineered Chiral Indium–Salen Complexes for Tunable Circularly Polarized Luminescence
Advanced Functional Materials, EarlyView.Chiral indium–salen complexes bearing electronically and structurally diverse donor substituents are presented as modular main‐group luminophores exhibiting tunable blue‐to‐green circularly polarized luminescence. Donor engineering systematically controls frontier‐orbital distribution, intraligand charge transfer, and excited‐state relaxation ...
Haein Kim +14 more
wiley +1 more source
Optical properties of mesoporous photonic crystals, filled with dielectrics, ferroelectrics and piezoelectrics [PDF]
Journal of Advanced Dielectrics, 2017 At present, it is very important to create new types of mirrors, nonlinear light frequency transformers and optical filters with controlled optical properties. In this connection, it is of great interest to study photonic crystals.
V. S. Gorelik, Dongxue Bi, Guang Tao Fei
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Nanoconfinement‐Induced Second‐Harmonic Circular Dichroism via Chirality–Ferroelectric Coupling
Advanced Functional Materials, EarlyView.Nanoconfinement of a ferroelectric nematic liquid crystal within a chiral nanoporous sponge yields an enhanced second‐harmonic generation circular dichroism (|gSHG–CD| ≈ 1.1). Polarization‐resolved analysis suggests an additional magnetic‐dipole‐associated nonlinear contribution under nanoconfinement, highlighting chirality–ferroelectric coupling as a ...
Jae‐Jin Lee +5 more
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BMEMatPhotonic crystals have drawn tremendous attention in recent years owing to their unique optical properties and remarkable advantages in various applications such as bioassays, sensors and optical devices. Benefiting from the spatially ordered structures,
Cun Zhu, Lei Tian, Wei Cheng, Zhongze Gu
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Physical and Chemical Preparation Techniques and Applications of Photonic Crystals: A Review
CrystalsPhotonic crystals, which are important functional materials, are formed by the periodic arrangement of materials with different dielectric constants that have photonic bandgaps and localization properties. Their preparation methods are primarily physical
Yifan Zhang +6 more
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Modeling the optical properties of twisted bilayer photonic crystals
Light: Science & Applications, 2021 The twisted bilayer photonic crystals have near-zero group velocity over the Bouillon zone and provide access to light localization that is far out of the reach of conventional photonic crystals.
Haoning Tang +5 more
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Planar Photonic Crystal Nanocavities with Active Quantum Nanostructures [PDF]
, 2004 Extreme photon localization is applicable to constructing building blocks in photonic systems and quantum information systems. A finding fact that photon localization in small space modifies the radiation process was reported in 1944 by Purcell, and ...
Yoshie, Tomoyuki
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Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing
Advanced Functional Materials, EarlyView.This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein +6 more
wiley +1 more source
A Brief Review on Nonlinear Photonic Crystals Induced by Direct Femtosecond Laser Writing
Photonics, 2023 Direct femtosecond laser writing or inscription is a useful technique, and it has been employed to engineer various materials in many applications including nonlinear photonic crystals, which are of periodically patterned second-order nonlinearity to get
Yaolan Tian +4 more
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Scientific Reports, 2017 AbstractWhen space (time) translation symmetry is spontaneously broken, the space crystal (time crystal) forms; when permittivity and permeability periodically vary with space (time), the photonic crystal (photonic time crystal) forms. We proposed the concept of photonic time crystal and rewritten the Maxwell’s equations.
Zeng, Lunwu +6 more
openaire +2 more sources