Feature-Resolved Photoluminescence Analysis: Probing Emission Beyond Conventional Photon Statistics
- URL: http://arxiv.org/abs/2507.19226v1
- Date: Fri, 25 Jul 2025 12:50:00 GMT
- Title: Feature-Resolved Photoluminescence Analysis: Probing Emission Beyond Conventional Photon Statistics
- Authors: Amit R. Dhawan, Nishita Chowdhury, Willy D. de Marcillac, Michel Nasilowski, Benoît Dubertret, Agnès Maître,
- Abstract summary: We study the fluorescence of single CdSe/CdS core/shell colloidal quantum dots under varying excitation powers.<n>We understand the radiative and non-radiative recombination processes, and estimate quantum parameters.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We present a feature-resolved methodology to analyse the photoluminescence dynamics of single emitters using a combination of lifetime, spectral, and photon correlation analyses. By integrating conventional ensemble photon statistics measurements with emission state-resolved, spectrally filtered, and lifetime-gated methods, we uncover emission dynamics that remain hidden in ensemble treatment. We study the fluorescence of single CdSe/CdS core/shell colloidal quantum dots under varying excitation powers. Using feature-resolved analysis, we understand the radiative and non-radiative recombination processes, and estimate quantum parameters. Event-selective analysis provides a versatile toolkit for characterizing emitters, both single and aggregate particles. These methods are broadly applicable to a wide class of photoluminescent emitters, such as nitrogen vacancy centres in nanodiamond, epitaxial quantum dots, and perovskite nanocrystals. The application of these lateral investigation techniques will contribute to the advancement of quantum light source development.
Related papers
- Spectral correlations of dynamical Resonance Fluorescence [0.0]
We show how spectral filtering enhances single-photon purity and suppresses multi-photon noise in time-bin-encoded quantum states.<n>These results establish spectral filtering as a critical tool for tailoring photon statistics in pulsed quantum light sources.
arXiv Detail & Related papers (2025-04-07T16:27:13Z) - Spatially resolved photon statistics of general nanophotonic systems [0.0]
We present a novel method that provides access to photon statistics resolved in space and frequency in arbitrary electromagnetic environments.<n>Within the macroscopic QED framework, we develop a practical tool to compute electric field correlations for complex quantum systems.<n>We demonstrate the effectiveness and robustness of the proposed technique by studying the photon correlations of one and two emitters in close proximity to a plasmonic nanoparticles.
arXiv Detail & Related papers (2024-11-29T15:31:36Z) - On-chip quantum information processing with distinguishable photons [55.41644538483948]
Multi-photon interference is at the heart of photonic quantum technologies.
Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources.
We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
arXiv Detail & Related papers (2022-10-14T18:16:49Z) - Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems.
Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
arXiv Detail & Related papers (2022-06-03T14:52:34Z) - Correlated steady states and Raman lasing in continuously pumped and
probed atomic ensembles [68.8204255655161]
We consider an ensemble of Alkali atoms that are continuously optically pumped and probed.
Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state.
We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
arXiv Detail & Related papers (2022-05-10T06:54:54Z) - Photon emission correlation spectroscopy as an analytical tool for
quantum defects [0.0]
This tutorial presents a standardized framework for using photon emission correlation spectroscopy to study quantum emitters.
We highlight important nuances and best practices regarding the commonly-used $g(2)(tau=0)0.5$ test for single-photon emission.
We illustrate how this experimental technique can be paired with optical dynamics simulations to formulate an electronic model for unknown quantum emitters.
arXiv Detail & Related papers (2021-11-01T20:43:22Z) - Heralded spectroscopy reveals exciton-exciton correlations in single
colloidal quantum dots [0.8911822441893501]
We introduce biexciton heralded spectroscopy, enabled by a single-photon avalanche diode array based spectrometer.
This allows us to directly observe biexciton-exciton emission cascades and measure the biexciton binding energy of single quantum dots at room temperature.
We uncover correlations hitherto masked in ensembles, of the biexciton binding energy with both charge-carrier confinement and fluctuations of the local electrostatic potential.
arXiv Detail & Related papers (2021-08-01T00:41:57Z) - Single photon emission from individual nanophotonic-integrated colloidal
quantum dots [45.82374977939355]
Solution processible colloidal quantum dots hold great promise for realizing single-photon sources embedded into scalable quantum technology platforms.
We report on integrating individual colloidal core-shell quantum dots into a nanophotonic network that allows for excitation and efficient collection of single-photons via separate waveguide channels.
arXiv Detail & Related papers (2021-04-23T22:14:17Z) - Room temperature single-photon emitters in silicon nitride [97.75917079876487]
We report on the first-time observation of room-temperature single-photon emitters in silicon nitride (SiN) films grown on silicon dioxide substrates.
As SiN has recently emerged as one of the most promising materials for integrated quantum photonics, the proposed platform is suitable for scalable fabrication of quantum on-chip devices.
arXiv Detail & Related papers (2021-04-16T14:20:11Z) - Regularization by Denoising Sub-sampled Newton Method for Spectral CT
Multi-Material Decomposition [78.37855832568569]
We propose to solve a model-based maximum-a-posterior problem to reconstruct multi-materials images with application to spectral CT.
In particular, we propose to solve a regularized optimization problem based on a plug-in image-denoising function.
We show numerical and experimental results for spectral CT materials decomposition.
arXiv Detail & Related papers (2021-03-25T15:20:10Z) - Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
Integrated photonics is a robust platform for quantum information processing.
Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive.
Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
arXiv Detail & Related papers (2020-05-19T16:46:44Z) - Control of single quantum emitters in bio-inspired aperiodic
nano-photonic devices [0.0]
Enhancing light-matter interactions on a chip is of paramount importance to study nano- and quantum optics effects.
We report on the demonstration of enhanced light-matter interaction and Purcell effects on a chip, based on bio-inspired aperiodic devices fabricated in silicon nitride and gallium arsenide.
arXiv Detail & Related papers (2020-01-18T20:40:07Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.