Optical nonlinearity of au metal nanoparticle dispersed (Ba, Sr)TiO 3 thin films

Authors
Lee, K.-S.Kim, I.-H.Cheong, B.Kim, W.-M.Yoon, S.-H.Cho, K.-M.Jun, H.-S.Kim, D.-S.
Issue Date
2005-08
Citation
International Journal of Nanoscience, v.4, no.4, pp.803 - 809
Abstract
Nearly spherical Au nanoparticles of about 3.83 nm diameter were embedded into the (Ba,Sr)TiO3 matrix using alternating sputtering method, showing the characteristic surface plasmon resonance absorption band at 571 nm. Dispersion in the third-order optical nonlinearity was investigated at several wavelengths from 450 to 680 nm around the resonance peak by a single beam Z-scan technique with a wavelength tunable picosecond laser system. The real and imaginary parts of third-order nonlinear susceptibility were resolved and the relative contributions are quantitatively compared at each wavelength. The maximum absolute value of third-order susceptibility as large as 4.312 × 10-8 esu was obtained at the surface plasmon frequency. The temporal response was also characterized by the femtosecond time-resolved optical Kerr gate measurement and the nonlinear response time was evaluated to be 192 fs at the laser wavelength of 800 nm. ? World Scientific Publishing Company.
Keywords
Characterization; Dispersions; Gold; Laser beams; Nanostructured materials; Optical Kerr effect; Sputter deposition; Surface plasmon resonance; Dispersion of optical nonlinearity; Metal nanoparticles; Surface plasmon; Thin films; Characterization; Dispersions; Gold; Laser beams; Nanostructured materials; Optical Kerr effect; Sputter deposition; Surface plasmon resonance; Dispersion of optical nonlinearity; Metal nanoparticles; Surface plasmon; Thin films; Dispersion of optical nonlinearity; Metal nanoparticle; Surface plasmon
ISSN
0219-581X
URI
https://pubs.kist.re.kr/handle/201004/136273
DOI
10.1142/S0219581X05003620
Appears in Collections:
KIST Article > 2005
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE