Ultrafast nonlinear optical studies of equiaxed CuNbO 3 microstructures

  title={Ultrafast nonlinear optical studies of equiaxed CuNbO 3 microstructures},
  author={Nilusha Priyadarshani and T. C. Sabari Girisun and Soma Venugopal Rao},
Diverse microstructures of monoclinic copper niobate (m-CuNbO3) were synthesized by solid-state reaction (900 C, 3–12 h). FESEM data demonstrated that agglomerated clusters grew as an elongated grains which migrated to form web-shaped equiaxed structure and dissected to form individual equiaxed microstructure. With femtosecond laser excitation (800 nm, 150 fs), open aperture Z-scan data revealed the presence of two-photon absorption. The nonlinear refractive index (n2) toggled between positive… CONTINUE READING


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