Results 41 to 50 of about 8,327 (239)

Laser writing of bright colours on near-percolation plasmonic reflector arrays [PDF]

open access: yes, 2018
Colouration by surface nanostructuring has attracted a great deal of attention by the virtue of making use of environment-friendly recyclable materials and generating non-bleaching colours [1-8].
Beermann, Jonas   +7 more
core   +2 more sources

Endowing inorganic nanomaterials with circularly polarized luminescence

open access: yesAggregate, 2022
Recently, materials with circularly polarized luminescence (CPL) properties have attracted substantial attention because they offer new perspectives in fundamental research and wide applications in photonics, bio‐encoding, catalysis, and so forth.
Dongxue Han   +7 more
doaj   +1 more source

Size-dependent fine-structure splitting in self-organized InAs/GaAs quantum dots [PDF]

open access: yes, 2005
A systematic variation of the exciton fine-structure splitting with quantum dot size in single InAs/GaAs quantum dots grown by metal-organic chemical vapor deposition is observed.
A. Schliwa   +6 more
core   +1 more source

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

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Optical Identification of a DNA-Wrapped Carbon Nanotube: Signs of Helically Broken Symmetry

open access: yes, 2008
High intrinsic mobility and small, biologically-compatible size make single-walled carbon nanotubes (SWNTs) in demand for the next generation of electronic devices.
Avouris   +19 more
core   +1 more source

Point source generation of chiral fields:measures of near- and far-field optical helicity [PDF]

open access: yes, 2015
To consider the relationship between different measures of chirality in an optical field, the simplest case is considered: direct spontaneous emission of circularly polarized light by a point source. In the electromagnetic fields radiated from a suitably
Afanasiev   +27 more
core   +1 more source

Chiral Binaphthalene Building Blocks for Self-Assembled Nanoscale CPL Emitters

open access: yesMolecules, 2023
The introduction of biuret hydrogen-bonding sites onto chiral binaphthalene-based chromophores was investigated as a route to sub-micron-sized, vesicle-like aggregates endowed with chiroptical properties.
Yu-Yu Hsieh   +4 more
doaj   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

open access: yesAdvanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon   +4 more
wiley   +1 more source

Experimental observation of chiral phonons in monolayer WSe2 [PDF]

open access: yes, 2019
Chirality characterizes an object that is not identical to its mirror image. In condensed matter physics, Fermions have been demonstrated to obtain chirality through structural and time-reversal symmetry breaking.
Kaindl, RA   +10 more
core   +1 more source

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