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		题名	作者	年代	出处	被引量
	1	Tailoring optical properties of TiO_2 in silica glass for limiting applications显示文摘We present the linear and nonlinear optical studies on TiO2–SiO2 nanocomposites with varying compositions. Optical band gap of the material is found to vary with the amount of SiO2 in the composite. The phenomenon of two-photon absorption(TPA) in TiO2/SiO2 nanocomposites has been studied using open aperture Z-scan technique. The nanocomposites show better nonlinear optical properties than pure TiO2, which can be attributed to the surface states and weak dielectric confinement of TiO2 nanoparticles by SiO2 matrix. The nanocomposites are thermally treated and similar studies are performed. The anatase form of TiO2 in the nanocomposites shows superior properties relative to the amorphous and rutile counterpart. The involved mechanism is explained by rendering the dominant role played by the excitons in the TiO2 nanoparticles.	S.Divya Indu Sebastian V.P.N.Nampoori P.Radhakrishnan A.Mujeeb	2014	Chinese Physics B2014，23，3：	1
	2	Constrained controllability of nonlinear neutral fractional integrodifferential systems显示文摘In this paper,we study the complete controllability for a class of nonlinear neutral fractional integro-differential systems in a finite interval of time by means of controls whose initial and final values can be assigned in advance.The result is achieved using the Banach fixedpoint theorem and Schauder’s fixed-point theorem.Some numerical examples are provided to demonstrate the effectiveness of the main result.	S.Divya K.Balachandran	2017	Journal of Control and Decision2017，4，2：	0
	3	Intensity and composition-dependent sign reversal of non-linearity in TiO_2/CeO_2 nanocomposites显示文摘CeO2/TiO2composite nanoparticles with different Ce/Ti molar ratios have been successfully synthesized via sol–gel method. It was found that the band gap of the nanocomposite is tunable by varying Ce/Ti content. The nonlinear response of the sample was studied by using the nanosecond laser pulses from a Q switched Nd:Yag laser employing the Z-scan method. Open aperture Z-scan experiment revealed that with the increase in the CeO2amount in the nanocomposite, the non-linearity of the composite increases, and it was assumed that this could be due to the modification of TiO2dipole symmetry by the addition of CeO2. Closed aperture Z-scan experiment showed that when the CeO2amount increases,positive nonlinear refraction decreases, and this could be attributed to the increase in the two photon absorption which subsequently suppresses the nonlinear refraction.	S.Divya V.P.N.Nampoori P.Radhakrishnan A.Mujeeb	2014	Chinese Physics B2014，23，3：	0

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