The Experts below are selected from a list of 24 Experts worldwide ranked by ideXlab platform
Abdullah M Asiri - One of the best experts on this subject based on the ideXlab platform.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Abstract Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, 1 H NMR, 13 C NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n 2 and nonlinear absorption coefficient β are measured for these dyes using the closed and open aperture z -scan technique with a cw He–Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, H-1 NMR, C-13 NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n(2) and nonlinear absorption coefficient beta are measured for these dyes using the closed and open aperture z-scan technique with a cw He-Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration
S M Afzal - One of the best experts on this subject based on the ideXlab platform.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Abstract Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, 1 H NMR, 13 C NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n 2 and nonlinear absorption coefficient β are measured for these dyes using the closed and open aperture z -scan technique with a cw He–Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, H-1 NMR, C-13 NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n(2) and nonlinear absorption coefficient beta are measured for these dyes using the closed and open aperture z-scan technique with a cw He-Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration
M A N Razvi - One of the best experts on this subject based on the ideXlab platform.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Abstract Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, 1 H NMR, 13 C NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n 2 and nonlinear absorption coefficient β are measured for these dyes using the closed and open aperture z -scan technique with a cw He–Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, H-1 NMR, C-13 NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n(2) and nonlinear absorption coefficient beta are measured for these dyes using the closed and open aperture z-scan technique with a cw He-Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration
Ahmed H Bakry - One of the best experts on this subject based on the ideXlab platform.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Abstract Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, 1 H NMR, 13 C NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n 2 and nonlinear absorption coefficient β are measured for these dyes using the closed and open aperture z -scan technique with a cw He–Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, H-1 NMR, C-13 NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n(2) and nonlinear absorption coefficient beta are measured for these dyes using the closed and open aperture z-scan technique with a cw He-Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration
Salman A Khan - One of the best experts on this subject based on the ideXlab platform.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Abstract Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, 1 H NMR, 13 C NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n 2 and nonlinear absorption coefficient β are measured for these dyes using the closed and open aperture z -scan technique with a cw He–Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration.
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synthesis characterization and determination of third order optical nonlinearity by cw z scan technique of novel Thiobarbituric Acid Derivative dyes
2015Co-Authors: M A N Razvi, Ahmed H Bakry, S M Afzal, Salman A Khan, Abdullah M AsiriAbstract:Donor acceptor chromophores were prepared by Knovenagel reaction of 1,3-diethyl-2-Thiobarbituric Acid with corresponding aldehydes in ethanol using pyridine as catalyst. The structures of newly synthesized compounds were evaluated by FT-IR, H-1 NMR, C-13 NMR, MS spectroscopy and purity of the compounds were confirmed by elemental analyses. The nonlinear refractive index n(2) and nonlinear absorption coefficient beta are measured for these dyes using the closed and open aperture z-scan technique with a cw He-Ne laser at 632.8 nm. These values are found to be high and linearly dependent on the concentration