Synthesis and optical properties of Co2+ and Ni2+ ions doped β-BaB2O4 nanopowders

Reddy, Ch. Venkata; Krishna, Ch. Rama; Rao, T. Raghavendra; Sathish, D.V.; Rao, P. Sambasiva; Ravikumar, R.V.S.S.N.

doi:10.1016/j.jlumin.2012.04.024

Cited by 14 publications

(3 citation statements)

References 29 publications

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“…In our model, spectral filtering alone allows for fidelity to exceed 0.8, while entirely without filtering, the fidelity reaches a value of about 0.6. Note that the luminescence spectra of various BBO crystals may vary slightly depending on impurities they contain [49].…”

Section: Discussionmentioning

confidence: 99%

“…BBO has been used to build optical parametric amplifiers, second and third harmonics generators, or tunable sources of polarization-entangled photon pairs. Luminescence in BBO material has been previously discussed in some papers [47][48][49]. These publications, however, focus on thermally stimulated luminescence [47,48] or impurities in BBO powders [49] and do not analyse luminescence in the context of noise in singlephoton generation.…”

Section: Introductionmentioning

confidence: 99%

“…Luminescence in BBO material has been previously discussed in some papers [47][48][49]. These publications, however, focus on thermally stimulated luminescence [47,48] or impurities in BBO powders [49] and do not analyse luminescence in the context of noise in singlephoton generation. Considering the importance of singlephoton sources and the significant impact the presence of additional luminescence may have on their quality, we believe that our study is of sizeable importance for the future development of SPDC-based single-photon sources.…”

Section: Introductionmentioning

confidence: 99%

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Luminescence-induced noise in single photon sources based on BBO crystals

Machulka¹,

Lemr²,

Haderka³

et al. 2014

J. Phys. B: At. Mol. Opt. Phys.

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Single-photon sources based on the process of spontaneous parametric down-conversion play a key role in various applied disciplines of quantum optics. We characterize intrinsic luminescence of BBO crystals as a source of non-removable noise in quantum-optics experiments. By analysing its spectral and temporal properties together with its intensity, we evaluate the impact of luminescence on single-photon state preparation using spontaneous parametric down-conversion.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Luminescence-induced noise in single photon sources based on BBO crystals

Machulka¹,

Lemr²,

Haderka³

et al. 2014

J. Phys. B: At. Mol. Opt. Phys.

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Structural and photoluminescence studies of Co2+ doped Ca–Li hydroxyapatite nanopowders

Koutavarapu

Babu

Rao

et al. 2015

J Mater Sci: Mater Electron

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Co 2? doped Calcium-Lithium Hydroxyapatite (CLHA) nanopowders were prepared by mechanochemical synthesis and characterized by different techniques. From Powder XRD data, the crystal system belongs to hexagonal structure and lattice cell parameters, average crystallite size were evaluated. The morphologies of prepared samples were analyzed by using SEM and TEM studies. Optical and EPR data confirms that the doped Co 2? enter into host material as distorted octahedral site symmetry. PL studies of Co 2? doped CLHA nanopowders exhibit UV, blue and yellow emission bands. CIE chromaticity coordinates were also calculated from emission spectra of Co 2? doped CLHA nanopowders. Vibrational bands related to phosphate molecules, P-O-H and hydroxyl ions are observed in FT-IR spectra.

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