Results 91 to 100 of about 8,777 (286)

Multiple-photon excitation of nitrogen vacancy centers in diamond

Physical Review B, 2018
We report the first observation of multi-photon photoluminescence excitation (PLE) below the resonant energies of nitrogen vacancy (NV) centers in diamond. The quadratic and cubic dependence of the integrated fluorescence intensity as a function of excitation power indicate a two-photon excitation pathway for the NV- charge state and a three-photon ...
Ji, Peng, Balili, Ryan B., Beaumariage, Jonathan, Mukherjee, Shouvik, Snoke, David W., Dutt, Gurudev   +5 more
openaire   +3 more sources

Optical Magnetometry Based on Nanodiamonds with Nitrogen-Vacancy Color Centers [PDF]

Materials, 2019
Nitrogen-vacancy color centers in diamond are a very promising medium for many sensing applications such as magnetometry and thermometry. In this work, we study nanodiamonds deposited from a suspension onto glass substrates. Fluorescence and optically detected magnetic resonance spectra recorded with the dried-out nanodiamond ensembles are presented ...
Adam M. Wojciechowski, Paulina Nakonieczna, Mariusz Mrózek, Krystian Sycz, Andrzej Kruk, Mateusz Ficek, Maciej Głowacki, Robert Bogdanowicz, Wojciech Gawlik   +8 more
openaire   +3 more sources

Switchable coupling between nitrogen-vacancy center in diamond and charge qubit

, 2011
We propose a scheme to achieve switchable coupling between nitrogen-vacancy (N-V) center in diamond and superconducting charge qubit by a quantized nanomechanical resonator (NAMR) as a data bus.
F.Y. Zhang, J.S. Jin, C. Li, H.S. Song, H. S. Song, F. Y. Zhang, J. S. Jin   +6 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Nitrogen-vacancy-center imaging of bubble domains in a 6-Å film of cobalt with perpendicular magnetization

, 2014
Published version has the title: Nitrogen-vacancy-center imaging of bubble domains in a 6 Å film of cobalt with perpendicular magnetizationWe employ a scanning nitrogen-vacancy-center microscope to perform stray field imaging of bubble magnetic domains ...
Gaudin, G, Gaudin, Gilles, Thiaville, A, Roch, JF, J.-P. Tetienne, Hingant, Thomas, Jacques, Vincent, G. Gaudin, E. Jué, Jué, E, Hingant, T, Roch, Jean-François, Tetienne, JP, Rohart, S, Tetienne, Jean-Philippe, Thiaville, André, A. Thiaville, J.-F. Roch, Rohart, Stanislas, Jacques, V, V. Jacques, T. Hingant, Jué, Emilie, Rondin, L, S. Rohart, Rondin, Loïc, L. Rondin   +26 more
core   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

IN4MER Biomaterial Ink: A Phosphorescent Biosensing Biomaterial Ink for Multiple Analytes (Glucose, Lactate, Oxygen) Measurements and Temperature Sensing Applications

Advanced Functional Materials, EarlyView.
Multianalyte, real‐time monitoring of bioprinted scaffolds remains challenging. Phosphorescence‐lifetime–based, optically responsive microparticles are embedded in diverse printable hydrogels (κ‐carrageenan, GelMA, PEGDA) to form biomaterial inks that report oxygen, glucose, lactate, and temperature.
Waqas Saleem, David Chimene, Berkley P. White, Kaivalya A. Deo, Jeremy L. Thomas, Nithin Chidambara, Cole Mandrona, Kirsten Landsgaard, Brian Ko, Roland Kaunas, Akhilesh K. Gaharwar, Michael J. McShane   +11 more
wiley   +1 more source

Quantum measurement of hyperfine interaction in nitrogen-vacancy center [PDF]

, 2012
We propose an efficient quantum measurement protocol for the hyperfine interaction between the electron spin and the $^{15}$N nuclear spin of a diamond nitrogen-vacancy center. In this protocol, a sequence of quantum operations of successively increasing
Yang, Wen, Sham, LJ, Bang, Kilhyun
core  

Nonlinear wave-spin interactions in nitrogen-vacancy centers

Physical Review Applied
15 pages and 10 ...
Zhongqiang Hu, Qiuyuan Wang, Chung-Tao Chou, Justin T. Hou, Zhiping He, Luqiao Liu   +5 more
openaire   +2 more sources