Enhanced and Polarization Dependent Coupling for Photoaligned Liquid Crystalline Conjugated Polymer Microcavities
ACS Photonics American Chemical Society (ACS) (2020) acsphotonics.9b01596
Highly Efficient Photoluminescence and Lasing from Hydroxide Coated Fully Inorganic Perovskite Micro/Nano Rods
University of Oxford (2020)
Abstract:
This is a micro-photoluminescence(micro-PL) based study to investigate the optical property of surface passivation effect with Pb(OH)2 coated CsPbBr3 micro/nano rods and demonstration of stimulated emission from defect states. We also presented a technique with completely separable excitation and collection in a confocal microscopy. In this work, we have supported with data from time-resolved study, time-integrated PL map and scan with either collection/excitation fixed and scanning the other.Purcell enhancement of a deterministically coupled quantum dot in an SU-8 laser patterned photonic crystal heterostructure
University of Oxford (2020)
Abstract:
The updated data files are supporting demonstration of weak coupling between a cavity mode and emission from a single quantum dot. In this research (done by January 2020) we developed an easily controlled fabrication process to deterministically write a mode gap cavity over a photonics crystal waveguide. All data files uploaded here are obtained through micro-photoluminescence(PL) experiments. Those associated with 'fig2' are the single time-integrated PL spectra with the first column in the data file being wavelength in 'nm'. fig2 a and b are single PL spectra of high and low density of ensemble quantum dots emission before coating the cavity. fig2 c is showing the crossover between the cavity emission mode and the quantum dot spectrum over a temperature run. fig 3 data is the time-resolved PL data taken at temperatures of 6K and 30K demonstrating Purcell enhancement. The corresponding instrument response function (irf) of the excitation laser signal is also included for deconvolution. NB: This is Version 2 of the data and supercedes Version 1 at https://doi.org/10.5287/bodleian:dXbD81ZmDPurcell enhancement of a deterministically coupled quantum dot in a SU-8 laser patterned photonic crystal heterostructure
University of Oxford (2020)
Abstract:
The updated data files are supporting demonstration of weak coupling between a cavity mode and emission from a single quantum dot. In this research (done by January 2020) we developed an easily controlled fabrication process to deterministically write a mode gap cavity over a photonics crystal waveguide. All data files uploaded here are obtained through micro-photoluminescence(PL) experiments. Those associated with 'fig4' are the single time-integrated PL spectra with the first column in the data file being wavelength in 'nm'. fig4 a and b are single PL spectra of high and low density of ensemble quantum dots emission before coating the cavity. fig4 c is showing the crossover between the cavity emission mode and the quantum dot spectrum over a temperature run. fig 5 is the time-resolved PL data of three different temperatures demonstrating Purcell enhancement. The corresponding first column represents time and is in the unit of 'ns'.Purcell enhancement of a deterministically coupled quantum dot in a SU-8 laser patterned photonic crystal heterostructure
University of Oxford (2020)