منابع مشابه
Colour centres in LiF : Mg crystals
— Two types of H° centres and one H~ centre were found by ESR and vacuum UV measurements in X-irradiated LiF : Mg. The so called Z3 and Z2 centres in LiF : Mg are not identical with any Z centre and are rather connected to the OH impurity.
متن کاملABSORPTION AND LUMINESCENCE OF COLOUR CENTRES IN KCI AND NaCI
Crystals of KCI and NaCl, coloured additively and quenched from high temperature to liquid-nitrogen temperature, show the F-absorption band and when irradiated in this band an emission in the infrared. If kept for a short time at room temperature a new absorption band (M-band) develops and irradiation in this band gives rise to a new emission band. If an M-absorption band is present, this new e...
متن کاملSTED microscopy reveals crystal colour centres with nanometric resolution
Because they have spin states that can be optically polarized and detected, fluorescent nitrogen vacancies in diamond1–3 have considerable potential for applications in quantum cryptography4,5 and computation6–8, as well as for nanoscale magnetic imaging9,10 and biolabelling11,12. However, their optical detection and control are hampered by the diffraction resolution barrier of far-field optics...
متن کاملCombination of Colour Favoured and Colour
In this research we described the effective Hamiltonian theory and applied this theory to the calculation of current-current (Q1,2) and QCD penguin (Q3,…,6) c quark decay rates. We calculated the decay rates of semileptonic and hadronic of charm quark in the effective Hamiltonian theory. We investigated the decay rates of D meson decays according to Spectator Quark Model (SQM) for the calculati...
متن کاملWide-range electrical tunability of single-photon emission from chromium-based colour centres in diamond
We demonstrate electrical control of the single-photon emission spectrum from chromium-based colour centres implanted in monolithic diamond. Under an external electric field, the tunability range is typically three orders of magnitude larger than the radiative linewidth and at least one order of magnitude larger than the observed linewidth. The electric and magnetic field dependence of luminesc...
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ژورنال
عنوان ژورنال: Nature
سال: 1968
ISSN: 0028-0836,1476-4687
DOI: 10.1038/220625b0