Search Results - "Ramachari, D."

Optical properties of zincfluorophosphate glasses doped with Dy3+ ions by Sreedhar, V.B., Ramachari, D., Jayasankar, C.K.

“…Dy3+-doped zincfluorophosphate glasses with composition (in mol%) 44P2O5+17K2O+(30−x) ZnF2+9Al2O3+xDy2O3, x=0.01, 0.5, 1.0 and 2.0 have been prepared by melt…”
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Synthesis of co-doped Yb3+-Er3+:ZrO2 upconversion nanoparticles and their applications in enhanced photovoltaic properties of quantum dot sensitized solar cells by Ramachari, D., Esparza, D., López-Luke, T., Romero, V.H., Perez-Mayen, L., De la Rosa, E., Jayasankar, C.K.

“…In this work, we explore the development of Yb3+-Er3+ co-doped ZrO2 nanoparticles to coat on TiO2/CdS/ZnS configuration to boost the photoconversion efficiency…”
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Phonon sideband spectrum and vibrational analysis of Eu3+-doped niobium oxyfluorosilicate glass by Ramachari, D., Rama Moorthy, L., Jayasankar, C.K.

“…Eu3+-doped niobium oxyfluorosilicate glass with molar composition of 1Eu2O3+20Nb2O5+20K2O+19ZnF2+10LiF+30SiO2 (EuNKZLS) was prepared by the melt quenching…”
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Gain properties and concentration quenching of Er3+-doped niobium oxyfluorosilicate glasses for photonic applications by Ramachari, D., Rama Moorthy, L., Jayasankar, C.K.

“…From the figure, the evaluated absorption (σabs) and emission (σemiM McCumber’s theory) cross-section are found to be 5.92×10−21cm2 and 6.97×10−21cm2,…”
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Spectral investigations of Sm3+-doped oxyfluorosilicate glasses by Ramachari, D., Rama Moorthy, L., Jayasankar, C.K.

“…The figure shows the emission spectra of Sm3+ doped KNSZL glass for different concentrations. Among the four emission transitions 4G5/2→6H5/2, 4G5/2→6H7/2,…”
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Synthesis, structural and luminescence properties of near white light emitting Dy3+-doped Y2CaZnO5 nanophosphor for solid state lighting by Rajeswari, R., Jayasankar, C.K., Ramachari, D., Surendra Babu, S.

“…Novel near white light emitting Y2CaZnO5 (YCZ) nanocrystalline powders doped with Dy3+ ions were synthesized via the citrate gel combustion method. The…”
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Studies of radiative and mechanical properties of Nd 3+ -doped lead fluorosilicate glasses for broadband amplification in a chirped pulse amplification based high power laser system by Manasa, P., Ramachari, D., Kaewkhao, J., Meejitpaisan, P., Kaewnuam, E., Joshi, A.S., Jayasankar, C.K.

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Spectroscopic investigation and optical characterization of Eu3+ ions in K–Nb–Si glasses by Murali Mohan, M., Rama Moorthy, L., Ramachari, D., Jayasankar, C.K.

“…[Display omitted] •KNbSiEu glasses were prepared by melt quenching method.•Raman spectrum confirmed that presence vibration modes of Si–O–Si and Nb–O…”
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Optical absorption and emission properties of Nd 3+ -doped oxyfluorosilicate glasses for solid state lasers by Ramachari, D., Rama Moorthy, L., Jayasankar, C.K.

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Energy transfer and photoluminescence properties of Dy3+/Tb3+ co-doped oxyfluorosilicate glass–ceramics for solid-state white lighting by Ramachari, D., Moorthy, L. Rama, Jayasankar, C.K.

“…Singly doped Dy3+, Tb3+ and co-doped Dy3+/Tb3+ ions in oxyfluorosilicate glass–ceramics were prepared by conventional melt quenching technique to study their…”
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Luminescence studies on Er3+ -doped zincfluorophosphate glasses for 1.53 μm laser applications by Sreedhar, V.B., Vijaya, N., Ramachari, D., Jayasankar, C.K.

“…The Er3+-doped zincfluorophosphate glasses have been prepared by conventional melt-quenching technique and characterized through X-ray diffraction,…”
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Studies of radiative and mechanical properties of Nd3+-doped lead fluorosilicate glasses for broadband amplification in a chirped pulse amplification based high power laser system by Manasa, P., Ramachari, D., Kaewkhao, J., Meejitpaisan, P., Kaewnuam, E., Joshi, A.S., Jayasankar, C.K.

“…Lead fluorosilicate (SPbKNLFNd: SiO2 + PbF2 + K2O + Na2O + LiF + Nd2O3) glasses doped with different concentrations of Nd3+ ions have been prepared by the melt…”
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Optical absorption and emission properties of Nd3+-doped oxyfluorosilicate glasses for solid state lasers by Ramachari, D., Rama Moorthy, L., Jayasankar, C.K.

“…•The Nd3+ doped oxyfluorosilicate glass exhibited a strong emission band at 1.06μm.•The structural information was carried out by Raman spectra.•Judd–Ofelt…”
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Optical absorption and emission properties of Nd super(3+)-doped oxyfluorosilicate glasses for solid state lasers by Ramachari, D, Moorthy, LRama, Jayasankar, C K

“…Optical absorption and near-infrared luminescent properties of Nd super(3+) ions doped oxyfluorosilicate (NKZLSNd) glasses were investigated. Raman spectrum…”
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Synthesis of co-doped Yb 3+ -Er 3+ :ZrO 2 upconversion nanoparticles and their applications in enhanced photovoltaic properties of quantum dot sensitized solar cells by Ramachari, D., Esparza, D., López-Luke, T., Romero, V.H., Perez-Mayen, L., De la Rosa, E., Jayasankar, C.K.

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Spectral investigations of Sm{sup 3+}-doped oxyfluorosilicate glasses by Ramachari, D., Rama Moorthy, L., Department of Physics, Chadalawada Ramanamma Engineering College, Renigunta Road, Tirupati 517506, Jayasankar, C.K.

“…Graphical abstract: The figure shows the emission spectra of Sm{sup 3+} doped KNSZL glass for different concentrations. Among the four emission transitions…”
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