119 citations · 341 across the 10 of their papers we have counts for
10 papers
Excitation's lifetime extracted from electron-photon (EELS-CL) nanosecond-scale temporal coincidences
Nadezda Varkentina, Yves Auad, Steffi Y. Woo +9
Electron-photon temporal correlations in electron energy loss (EELS) and cathodoluminescence (CL) spectroscopies have recently been used to measure the relative quantum efficiency…
Tapered ultra-high Numerical Aperture optical fiber tip for Nitrogen Vacancy ensembles based endoscope in a fluidic environment
Dewen Duan, Vinaya Kumar Kavatamane, Sri Ranjini Arumugam +3
Fixing a diamond containing a high density of Nitrogen-Vacancy (NV) center ensembles on the apex of a multimode optical fiber (MMF) extends the applications of NV-based endoscope s…
Probing plasmon-NV coupling at the nanometer scale with photons and fast electrons
H. Lourenço-Martins, M. Kociak, S. Meuret +5
The local density of optical states governs an emitters lifetime and quantum yield through the Purcell effect. It can be modified by a surface plasmon electromagnetic field, but su…
Mapping Dynamical Magnetic Responses of Ultra-thin Micron-size Superconducting Films using Nitrogen-vacancy Centers in Diamond
Ying Xu, Yijun Yu, Yuen Yung Hui +6
Two-dimensional superconductors have attracted growing interest because of their scientific novelty, structural tunability, and useful properties. Studies of their magnetic respons…
Efficient nitrogen-vacancy centers' fluorescence excitation and collection from micrometer-sized diamond by a tapered optical fiber
Dewen Duan, Guanxiang Du, Vinaya Kumar Kavatamane +4
Efficiently excite nitrogen-vacancy (NV) centers in diamond and collect their fluorescence significantly benefit the fiber-optic-based NV sensors. Here, using a tapered optical fib…
Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror
Dewen Duan, Vinaya Kumar Kavatamane, Sri Ranjini Arumugam +7
We experimentally demonstrate a simple and robust optical fibers based method to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV)…
Mutually enhancing light emission between plasmonic nanostructures and fluorescent emitters
Jingyi Zhao, Yuqing Cheng, Hongming Shen +4
We demonstrate that the fluorescent emitters can increase light emission from the plasmonic nanostructures in turn. With the help of atomic force microscopy, a hybrid system consis…
Purcell-enhanced single-photon emission from nitrogen-vacancy centers coupled to a tunable microcavity
Hanno Kaupp, Thomas Hümmer, Matthias Mader +7
Optical microcavities are a powerful tool to enhance spontaneous emission of individual quantum emitters. However, the broad emission spectra encountered in the solid state at room…
Creating high density ensembles of nitrogen-vacancy centers in nitrogen-rich type Ib nanodiamonds
Long-Jyun Su, Chia-Yi Fang, Yu-Tang Chang +4
This work explores the possibility of increasing the density of negatively charged nitrogen-vacancy centers [NV-] in nanodiamonds using nitrogen-rich type Ib diamond powders as the…
Scaling laws of the cavity enhancement for nitrogen-vacancy centers in diamond
Hanno Kaupp, Christian Deutsch, Huan-Cheng Chang +3
We employ a fiber-based optical microcavity with high finesse to study the enhancement of phonon sideband fluorescence of nitrogen-vacancy centers in nanodiamonds. Harnessing the f…