Harnessing single-particle dynamics in silver nanomaterials

Lynn A. Peyser; Tae-Hee Lee; Robert M. Dickson

doi:10.1117/12.459728

18 March 2002 Harnessing single-particle dynamics in silver nanomaterials

Lynn A. Peyser, Tae-Hee Lee, Robert M. Dickson

Proceedings Volume 4636, Nanoscience Using Laser-Solid Interactions; (2002) https://doi.org/10.1117/12.459728
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States

Abstract

The potential of a novel silver-silver oxide system for optical data storage with fluorescent readout has been discovered and developed. These properties arise from photolytic production of highly fluorescent single Ag_n molecules (n = 2-6 atoms) from silver oxide. Optical experiments with a 514.5nm Ar⁺ laser and a 100W Hg lamp allow determination of single Ag_n nanocluster absorption cross- sections ((sigma) = 8 x 10^-15 cm²) and saturation intensities (I_sat = 200 W/cm² at 514.5 nm). Single molecule fluorescence experiments have elucidated the dynamics of AgO photoactivation and subsequent Ag_n nanocluster emission. Additionally, excitation, wavelength and intensity dependent dynamics are investigated. Results clearly show dependence on wavelength and intensity in Ag_n nanocluster creation and destruction.

Citation Download Citation

Lynn A. Peyser, Tae-Hee Lee, and Robert M. Dickson "Harnessing single-particle dynamics in silver nanomaterials", Proc. SPIE 4636, Nanoscience Using Laser-Solid Interactions, (18 March 2002); https://doi.org/10.1117/12.459728

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