29 citations · 29 across the 1 of their papers we have counts for
5 papers
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)…