Now showing items 1-10 of 45
50-1: Invited paper: Recent advances in measuring and understanding the influence of molecular alignment on the light extraction efficiency of OLEDs
(2017) - Journal item,
We review recent progress in controlling the alignment of the transition dipole moment of electroluminescent molecules to maximize the light extraction efficiency in OLEDs. Particular focus devoted to ways of measuring ...
Non-obstructive intracellular nanolasers
(2018-11-16) - Journal item,
Molecular dyes, plasmonic nanoparticles and colloidal quantum dots are widely used in biomedical optics. Their operation is usually governed by spontaneous processes, which results in broad spectral features and limited ...
Atmospheres of brown dwarfs
(2014) - Journal item,
Brown Dwarfs are the coolest class of stellar objects known to date. Our present perception is that Brown Dwarfs follow the principles of star formation, and that Brown Dwarfs share many characteristics with planets. Being ...
Chiral plasmonic nanostructures : twisted by DNA
(2014-09) - Journal item,
Modulated Raman spectroscopy for enhanced cancer diagnosis at the cellular level
(2015-06) - Journal item,
Raman spectroscopy is emerging as a promising and novel biophotonics tool for non-invasive, real-time diagnosis of tissue and cell abnormalities. However, the presence of a strong fluorescence background is a key issue ...
Charge pair dissociation and recombination dynamics in a P3HT–PC60BM bulk heterojunction
(2013-12-05) - Journal item,
The mechanism by which Coulombically bound charge pairs dissociate into free carriers in photovoltaic donor–acceptor blends is of great interest. Here, we use polarization-sensitive transient absorption (TA) to study the ...
Observation of ultrafast free carrier dynamics in single layer MoS2
(2015-09-09) - Journal item,
The dynamics of excited electrons and holes in single layer (SL) MoS2 have so far been difficult to disentangle from the excitons that dominate the optical response of this material. Here, we use time- and angle-resolved ...
Atmospheric electrification in dusty, reactive gases in the solar system and beyond
(2016-07) - Journal item,
Detailed observations of the solar system planets reveal a wide variety of local atmospheric conditions. Astronomical observations have revealed a variety of extrasolar planets none of which resembles any of the solar ...
White top-emitting organic light-emitting diodes with solution-processed nano-particle scattering layers
(2015-12-07) - Journal item,
A random scattering approach to enhance light extraction in white top-emitting organic light-emitting diodes (OLEDs) is reported. Through solution processing from fluorinated solvents, a nano-particlescattering layer (NPSL) ...
Optothermal nonlinearity of silica aerogel
(2016-07-25) - Journal item,
We report on the characterization of silica aerogel thermal optical nonlinearity, obtained by z-scan technique. The results show that typical Silica Aerogels have nonlinear optical coefficient similar to that of glass (≃ ...