Effect of Substrates on the Temperature Dependence of Fluorescence Spectra of Nitrogen Vacancy Centers in Diamond Nanocrystals
スポンサーリンク
概要
- 論文の詳細を見る
The temperature dependence of fluorescence spectra of nitrogen vacancy (NV) centers in diamond nanocrystals is investigated in terms of the ability of the substrate to suppress the fluorescence phonon sideband of negatively charged NV (NV-) centers. Three substrates were used: a glass coverslip, undoped silicon (Si), and thermally oxidized silicon (SiO2/Si). Nanocrystals were distributed on these substrates and the temperature dependence of fluorescence spectra of NV- centers of individual nanocrystals were measured in the temperature range 3.5--230 K. We found that the zero-phonon line (ZPL) of NV- centers in nanocrystals on the SiO2/Si substrate remained intense as the temperature was increased from 3.5 to 160 K, whereas it monotonically decreased for the Si substrate. Diamond nanocrystals dispersed on a glass coverslip did not exhibit prominent ZPLs of NV- centers, even at 3.5 K. The temperature dependencies of the peak intensities of NV- centers were quantitatively analyzed by determining the Debye--Waller factors of the three substrates. As the temperature was increased from 3.5 to 230 K, the Debye--Waller factor decreased almost linearly from 10 to 1.7% for the SiO2/Si substrate, decreased from 6.1 to 1.6% for the Si substrate, and decreased from 0.9 to 0.62% for the glass coverslip. These results will be useful for nanophotonic device applications of nanodiamond NV centers in quantum information science and sensing.
- 2012-09-25
著者
-
ZHAO Hong-Quan
Research Center for Integrated Quantum Electronics, Hokkaido University
-
Takeuchi Shigeki
Research Institute For Electronic Science Hokkaido University
-
Zhao Hong-Quan
Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan
-
Takeuchi Shigeki
Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan
-
Fujiwara Masazumi
Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan
関連論文
- 2-bit Arithmetic Logic Unit Utilizing Hexagonal BDD Architecture for Implementation of Nanoprocessor on GaAs Nanowire Network(Session4B: Emerging Devices II)
- 2-bit Arithmetic Logic Unit Utilizing Hexagonal BDD Architecture for Implementation of Nanoprocessor on GaAs Nanowire Network(Session4B: Emerging Devices II)
- An Experimental Realization of Quantum Cryptosystem(Special Section on Cryptography and Information Security)
- Effects of Decoherence on the Nonlinear Optical Phase Shift Obtained from a One-Dimensional Atom
- Effect of Substrates on the Temperature Dependence of Fluorescence Spectra of Nitrogen Vacancy Centers in Diamond Nanocrystals
- Analysis of Quantum Dot Fluorescence Coupled with a Microsphere Resonator
- Resonant Frequency Control of a Microspherical Cavity by Temperature Adjustment
- Investigation of the Spatial Propagation Properties of Type-I Parametric Fluorescence by Use of Tuning Curve Filtering Method