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Laser-induced color centers in crystals
Optics & Laser Technology, 2022Abstract Color centers are widely used in quantum information, quantum sensing, micro-nano optics and other relevant fields. In addition to the traditional ways that can generate color centers, for instance, ion beam implantation, direct laser writing (DLW) technology has recently emerged as an appealing alternative to induce color centers because it
Si Gao +6 more
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Diffractometric crystal centering
Journal of Applied Crystallography, 1999A general formalism for centering a single-crystal on a four-circle diffractometer, based on the setting angles of reflections, is presented. The minimum information for the determination of crystal displacement are the diffractometer setting angles of two reciprocal vectors. The method is independent of the crystallographic system and does not require
Przemyslaw Dera, Andrzej Katrusiak
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Manipulating NV centers with Optomechanical Crystals
CLEO: 2013, 2013Nanophotonic optomechanical devices allow efficient control of localized, high quality factor, nanoscale mechanical resonances. By optically actuating these resonances, the properties of embedded diamond nitrogen vacancy centers can be modulated with far off resonance photons.
Khanaliloo, Behzad, Barclay, Paul E.
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F_2^− color centers in LiF crystals
Applied Optics, 1986Methode d'irradiation gamma pour faire des concentration de centres colores F 2 − utiles pour des applications ...
Y Y, Teng +3 more
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Impurity centers in ZnSe:Na crystals
Journal of Luminescence, 2011Abstract The influence of sodium impurity on photoluminescence (PL) spectra of ZnSe crystals doped in a growth process from a Se+Na melt is investigated. It is shown that the introduction of the impurity results in emergence of emission bands in the PL spectra due to the recombination of exciton impurity complexes associated with both donors and ...
G.V. Colibaba +2 more
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Color center and radiation center in Lu2SiO5:Ce crystal
Journal of Rare Earths, 2008Radiation damage of Lu2SiO5:Ce (LSO:Ce) crystals was investigated through intense UV light. An absorption band at 435 nm was observed in the transmission spectrum of the damaged LSO:Ce crystal, similar to that of absorption band caused by gamma ray irradiation.
Laishun QIN +4 more
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Study of Vκ centers in CsI crystal
Solid State Communications, 1973Vk centers were observed in CsI doped with Na+ and Tl+ after x-ray irradiation at liquid He temperature by using optical and EPR techniques. They are oriented along [100] directions. By studying thermoluminescence, 2 types of thermal migration were found, one due to linear displacement of the centers along the cubic axis and the other due to 90 ...
Sidler, T. +3 more
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A-centers modifying in CdTe–Yb crystals
Journal of Crystal Growth, 1996Abstract By means of electrical and magnetic investigation of Yb-doped CdTe crystals, the following was established: (1) Additional shallow donors and paramagnetic centers are not introduced into the doping process; the hole conductivity of doped crystals is controlled by A-centers; their ionization energy depends on Yb impurity concentration (C ...
E.S. Nikonyuk +5 more
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Color Centers in Irradiated Durene Crystals
Physica Status Solidi (a), 1981The optical absorption spectra of γ-irradiated durene single crystals at 77 K are measured using light polarized along the a-, b-, and c′-axes of crystals. In the shorter wavelength region five strong absorption bands are detected. At longer wavelength weak bands at 489 nm with well desolved vibrational structures and relatively broad weak bands at 570
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