Experimental Optical Properties of Single-Photon Emitters in Aluminum Nitride Films

2021 ◽  
Author(s):  
Yongzhou Xue ◽  
Tongbo Wei ◽  
Hongliang Chang ◽  
Dongdong Liang ◽  
Xiuming Dou ◽  
...  
Keyword(s):  
Optical Properties ◽  
Aluminum Nitride ◽  
Single Photon ◽  
Single Photon Emitters

Optical Properties of Room Temperature Single Photon Emitters in GaN

2019 ◽  
Author(s):  
Mehran Kianinia ◽  
Minh Nguyen ◽  
Tongtong Zhu ◽  
Carlo Bradac ◽  
Milos Toth ◽  
...  
Keyword(s):  
Optical Properties ◽  
Room Temperature ◽  
Single Photon ◽  
Single Photon Emitters

scholarly journals Optical properties of atomically thin transition metal dichalcogenides: observations and puzzles

Nanophotonics ◽  
2017 ◽  
Vol 6 (6) ◽  
pp. 1289-1308 ◽  
Author(s):  
Maciej Koperski ◽  
Maciej R. Molas ◽  
Ashish Arora ◽  
Karol Nogajewski ◽  
Artur O. Slobodeniuk ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Optical Pumping ◽  
Single Photon ◽  
Hexagonal Boron Nitride ◽  
Transition Metal Dichalcogenides ◽  
Wide Band ◽  
Open Questions ◽  
Single Photon Emitters ◽  
Metal Dichalcogenides

AbstractRecent results on the optical properties of monolayer and few layers of semiconducting transition metal dichalcogenides are reviewed. Experimental observations are presented and discussed in the frame of existing models, highlighting the limits of our understanding in this emerging field of research. We first introduce the representative band structure of these systems and their interband optical transitions. The effect of an external magnetic field is then considered to discuss Zeeman spectroscopy and optical pumping experiments, both revealing phenomena related to the valley degree of freedom. Finally, we discuss the observation of single photon emitters in different types of layered materials, including wide band gap hexagonal boron nitride. While going through these topics, we try to focus on open questions and on experimental observations, which do not yet have a clear explanation.

scholarly journals Superior Optical Properties of Perovskite Nanocrystals as Single Photon Emitters

ACS Nano ◽  
2015 ◽  
Vol 9 (12) ◽  
pp. 12410-12416 ◽  
Author(s):  
Fengrui Hu ◽  
Huichao Zhang ◽  
Chun Sun ◽  
Chunyang Yin ◽  
Bihu Lv ◽  
...  
Keyword(s):  
Optical Properties ◽  
Single Photon ◽  
Perovskite Nanocrystals ◽  
Single Photon Emitters

scholarly journals First-Principles Identification of Single Photon Emitters Based on Carbon Clusters in Hexagonal Boron Nitride

2021 ◽  
Vol 125 (6) ◽  
pp. 1325-1335 ◽  
Author(s):  
Cesar Jara ◽  
Tomáš Rauch ◽  
Silvana Botti ◽  
Miguel A. L. Marques ◽  
Ariel Norambuena ◽  
...  
Keyword(s):  
Boron Nitride ◽  
First Principles ◽  
Single Photon ◽  
Hexagonal Boron Nitride ◽  
Carbon Clusters ◽  
Single Photon Emitters

scholarly journals Localization of Narrowband Single Photon Emitters in Nanodiamonds

2016 ◽  
Vol 8 (11) ◽  
pp. 7590-7594 ◽  
Author(s):  
Kerem Bray ◽  
Russell Sandstrom ◽  
Christopher Elbadawi ◽  
Martin Fischer ◽  
Matthias Schreck ◽  
...  
Keyword(s):  
Single Photon ◽  
Single Photon Emitters

scholarly journals Symmetry-tailored patterns and polarizations of single-photon emission

Nanophotonics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 3557-3565
Author(s):  
Guorui Zhang ◽  
Ying Gu ◽  
Qihuang Gong ◽  
Jianjun Chen
Keyword(s):  
Single Photon ◽  
Photon Emission ◽  
Silver Nanowire ◽  
Emission Rates ◽  
Single Photon Emission ◽  
Emission Pattern ◽  
Single Photon Emitters ◽  
Resonant Modes ◽  
Oriented Dipole ◽  
Centrally Symmetric

AbstractDue to small optical mode volumes and linear polarizations of surface-plasmon-polariton (SPP) resonant modes in metallic antennas, it is very difficult to obtain complex emission patterns and polarizations for single-photon emitters. Herein, nonresonant enhancement in a silver nanowire is used to both enhance emission rates and extract a z-oriented dipole, and then the symmetry of metallic nanostructures is proposed to tailor the patterns and polarizations of single-photon emission. The emission pattern of a quantum dot located close to a metallic nanostructure with a symmetric axis is split into multiple flaps. The number of splitting flaps is equal to the order of the symmetric axis. Moreover, the electric vectors of the emitted photons become centrally symmetric about the symmetric axis. The above phenomena are well explained by both a simulation and an image dipole model. The structural-symmetry-tailoring mechanism may open up a new avenue in the design of multifunctional and novel quantum-plasmonic devices.

scholarly journals Radiative properties of quantum emitters in boron nitride from excited state calculations and Bayesian analysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Shiyuan Gao ◽  
Hsiao-Yi Chen ◽  
Marco Bernardi
Keyword(s):  
Boron Nitride ◽  
Density Functional ◽  
Single Photon ◽  
Radiative Lifetime ◽  
Radiative Properties ◽  
Data Set ◽  
Radiative Lifetimes ◽  
Emission Energy ◽  
Single Photon Emitters ◽  
Quantum Emitters

AbstractPoint defects in hexagonal boron nitride (hBN) have attracted growing attention as bright single-photon emitters. However, understanding of their atomic structure and radiative properties remains incomplete. Here we study the excited states and radiative lifetimes of over 20 native defects and carbon or oxygen impurities in hBN using ab initio density functional theory and GW plus Bethe-Salpeter equation calculations, generating a large data set of their emission energy, polarization and lifetime. We find a wide variability across quantum emitters, with exciton energies ranging from 0.3 to 4 eV and radiative lifetimes from ns to ms for different defect structures. Through a Bayesian statistical analysis, we identify various high-likelihood charge-neutral defect emitters, among which the native VNNB defect is predicted to possess emission energy and radiative lifetime in agreement with experiments. Our work advances the microscopic understanding of hBN single-photon emitters and introduces a computational framework to characterize and identify quantum emitters in 2D materials.

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