Surface plasmon Susceptibility

Chen, Y. J. Carter, G. M. "Measurement of Third Order Nonlinear Susceptibilities by Surface Plasmons," Appl. Phys. 

Hamanaka, Y., Nakamura, A., Hayashi, N., Omi, S. Dispersion curves of complex third-order optical susceptibilities around the surface plasmon resonance in Ag nanocrystal-glass composites. 

The screened susceptibility x(q, m z, z ) appearing in equation (23) is a smooth function of the spatial coordinates that interpolates from zero very far from the surface to the bulk value. It contains the spectrum of the single-pai ticle and collective modes and their coupling. This coupling, known as Landau-damping, depends on distance and it is the only channel that allows decaying of a collective mode in the jellium theory. Surface plasmons of parallel momentum q different from zero are Landau-damped but bulk plasmons cannot decay into electron-hole pairs below a critical frequency in this linear theory. Collective modes can show up in electron emission spectra [28,29] because they are coupled to electron-hole pairs. 

Chiang YL, Lin CH, Yen MY, Su YD, Chen SJ, Chen HF (2009) Innovative antimicrobial susceptibility testing method using surface plasmon resonance. Biosens Bioelectron 24 1905-1910 China B, Pirson V, Mainil J (1996) Typing of bovine attaching and effacing Escherichia coli by multiplex in vitro amplification of virulence-associated genes. Appl Environ Microbiol 62 3462-3465... 

Copper nanoparticles have been synthesized in silica by 50 keV Cu ion implantation with doses of 8.0x10 ion/cm. N anoparticles were c haracterized by absorption band of surface plasmon resonance in the visible range. Metal nanoparticle composite glasses were analyzed by the Z-scan method at the IR wavelength of NdiYAG laser radiation 1064 nm. The third order nonlinear susceptibility in the analyzed medium with simultaneous nonlinear refraction and absorption were considered as complex values. It is suggested that the samples with nonlinear absorption is perspective ones for optical applications. 

Our choice of silver metal was based on several properties of silver. First, silver is the cheapest noble metal. Second, it has a narrow intense plasmon absorption band in the visible region that is very susceptible to surface-interface effects [14]. 

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