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Third-order nonlinear optical properties of thin sputtered gold films

✍ Scribed by E. Xenogiannopoulou; P. Aloukos; S. Couris; E. Kaminska; A. Piotrowska; E. Dynowska

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 678 KB
Volume: 275
Category: Article
ISSN: 0030-4018
DOI: 10.1016/j.optcom.2007.02.059

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✦ Synopsis

Au films of thickness ranging between 5 and 52 nm were prepared by sputtering on quartz substrates and their third-order nonlinear optical response was investigated by Optical Kerr effect (OKE) and Z-scan techniques using 532 nm, 35 ps laser pulses. All prepared films were characterized by XRD, AFM and UV-VIS-NIR spectrophotometry while their third-order susceptibility v (3) was measured and found to be of the order of 10 À9 esu. The real and imaginary parts of the third-order susceptibility were found in very good agreement with experimental results and theoretical predictions reported by Smith et al.

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