Optical properties of Ag nanoparticles embedded Ba0.5Sr0.5TiO3 films prepared by alternating pulsed laser deposition.
Nanocomposite thin films consisting of nanometer-sized Ag particles embedded in amorphous Ba0.5Sr0.5TiO3 matrix were prepared on fused silica substrates by an alternating pulsed laser deposition method. Their optical nonlinearities have been studied using the Z-scan method. The surface plasmon resonance (SPR) peak shifts to red and increases with the increasing the volume fraction of Ag in the nanocomposite films. The magnitude of the third-order nonlinear susceptibility of the nanocomposite with an Ag volume fraction of 3.3% was calculated to be approximately 2 x 10(-8) esu at the SPR wavelength.
Kim
Ji-Suk
JS
Photonic and Electronic Thin Film Laboratory, Department of Materials Science and Engineering, Chonnam National University, Gwangju 500-757, Korea.
Lee
Kyeong-Seok
KS
Kim
Sang Sub
SS
D007834:Lasers; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D053761:Nanocomposites / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D012822:Silicon Dioxide; D012834:Silver / Q000737:chemistry*; D013053:Spectrophotometry; D020349:Surface Plasmon Resonance; D014025:Titanium / Q000737:chemistry*
C009495:titanium dioxide; D012834:Silver; D012822:Silicon Dioxide; D014025:Titanium