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Rh:BaTiO3 thin films with large nonlinear optical properties.

Guang Yang1, Huanhua Wang, Guotai Tan

  • 1Laboratory of Optical Physics, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People's Republic of China.

Applied Optics
|March 30, 2002
PubMed
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We fabricated Rh-doped BaTiO3 thin films with significant nonlinear optical properties. These Rh:BaTiO3 films show potential for advanced nonlinear optical devices.

Area of Science:

  • Materials Science
  • Optoelectronics
  • Solid State Physics

Background:

  • Barium titanate (BaTiO3) is a well-known ferroelectric material with significant optical properties.
  • Doping BaTiO3 with transition metals can modify its optical characteristics for specific applications.
  • Thin film deposition techniques are crucial for creating advanced optical materials.

Purpose of the Study:

  • To fabricate Rh-doped BaTiO3 thin films.
  • To investigate the nonlinear optical properties of these films.
  • To assess their potential for nonlinear optical devices.

Main Methods:

  • Pulsed-laser deposition was used to create Rh:BaTiO3 thin films on SrTiO3 (100) substrates.
  • X-ray diffraction confirmed single-phase, c-axis oriented films.

Related Experiment Videos

  • Z-scan technique at 532 nm with 10 ns laser pulses measured nonlinear optical effects.

    • Main Results:

    • The Rh:BaTiO3 thin films exhibited large nonlinear optical effects.
    • The third-order nonlinear susceptibility (χ(3)) was determined.
    • Real and imaginary parts of χ(3) were 5.71 x 10⁻⁷ esu and 9.59 x 10⁻⁸ esu, respectively.

    Conclusions:

    • The real part of the nonlinear susceptibility (Re χ(3)) in Rh:BaTiO3 films significantly exceeds that of many other nonlinear optical thin films.
    • These findings highlight the promising potential of Rh-doped BaTiO3 thin films for applications in nonlinear optical devices.