Results 81 to 90 of about 3,663,593 (242)

Photoprogrammable Circularly Polarized Phosphorescence Switching of Chiral Helical Polyacetylene Thin Films [PDF]

open access: yes, 2022
The developments of pure organic room-temperature phosphorescence (RTP) materials with circularly polarized luminescence (CPL) have significantly facilitated the future integration and systemization of luminescent material in fundamental science and ...
Zhenyi, He   +4 more
core   +2 more sources

Mechanochemical engineering of chiroptical properties in indium-based chiral metal halides by grinding

open access: yesNature Communications
Circularly polarized luminescence is crucial for optoelectronics, bioimaging, and three-dimensional display, yet most of current materials suffer from complex synthesis and limited tunability.
Junhong Wu   +6 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

Generation and Characterization of Circularly-polarized Light

open access: yes, 2010
16 p.Polarized light has many uses as a tool in investigating matter. Studying the interactions of molecules with polarized light reveals much about chemical dynamics. Lig~t can be polarized linearly, elliptically, or circularly and it is useful for a
Miller, Stephen
core   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Circularly polarized patch antenna with frequency reconfiguration

open access: yes, 2015
A novel circularly polarized (CP) patch antenna with frequency reconfiguration is presented. The antenna consists of a rectangular patch etched with a rectangular-ring slot. Four pairs of varactor diodes are symmetrically placed along the slot.
Ge, Lei, Gu, Hui, Wang, Jianpeng
core   +1 more source

Magnetically Induced Switching of Circularly Polarized Luminescence Using Electromagnets

open access: yesMolecules
Intense circularly polarized luminescence is crucial for high-performance electroluminescent, optoelectronic, and photonic devices. This study investigates the magneto-chiral characteristics of two achiral soluble diamagnetic perovskite-type PbQDs ...
Yoshitane Imai   +3 more
doaj   +1 more source

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska   +5 more
wiley   +1 more source

Diffraction of circularly polarized light from near-field optical probes

open access: yes, 1999
Diffracted fields from 100-mm aperture near-field scanning optical microscopy (NSOM) probes and uncoated tapered fibres are measured and analysed. Using a solid angle scanner, the two-dimensional intensity distribution and polarization state of the ...
Lee, Yong-Hee   +2 more
core   +3 more sources

Measuring circular phase-dichroism of chiral metasurface

open access: yesNanophotonics, 2019
The ability of chiral media to differentiate circularly polarized light is conventionally characterized by circular dichroism (CD) which is based on the difference in the absorption of the incident light for different polarizations.
Zhang Ranran   +5 more
doaj   +1 more source

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