Blue-ray-induced optical properties of noble metal oxide thin film in super-RENS disk

Qian Liu; Toshio Fukaya; Junji Tominaga

doi:10.1117/12.570121

3 January 2005 Blue-ray-induced optical properties of noble metal oxide thin film in super-RENS disk

Qian Liu, Toshio Fukaya, Junji Tominaga

Proceedings Volume 5643, Advances in Optical Data Storage Technology; (2005) https://doi.org/10.1117/12.570121
Event: Photonics Asia, 2004, Beijing, China

Abstract

The optical reflectance and transmittance of Platinum oxide (PtO_x) and palladium oxide (PdO_x) mask layer, which are used to super-resolution near-field structure (super-RENS) disk, are investigated using Z-scan technique, under blue laser (442 nm) irradiation. The power thresholds of the PtO_x and PdO_x decomposition are obtained; the reversible and irreversible features for the two kinds of mask layers are cleared. Deformation in the micro irradiation region on surface of the mask samples, which is formed by decomposition of the PtO_x or PdO_x driving the Z-scan, is analyzed by means of an atom force microscope (AFM). The deformation analyses agree well with the Z-scan results. The optical features obtained at 442nm wavelength are compared with those at 532-nm wavelength, and the power threshold difference between the two wavelengths is also analyzed in detail based on irradiation power density and absorption spectrum of the mask samples.

Citation Download Citation

Qian Liu, Toshio Fukaya, and Junji Tominaga "Blue-ray-induced optical properties of noble metal oxide thin film in super-RENS disk", Proc. SPIE 5643, Advances in Optical Data Storage Technology, (3 January 2005); https://doi.org/10.1117/12.570121

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