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2 December 2008Self-organizing laser induced Au nanocrystall formation in
conditions of surface plasmon resonance
The researches of the possibility of Au nanoparticles formation in conditions of surface plasmon resonance (SPR) at
irradiation of the Au film / glass structure by YAG:Nd+3-laser nanosecond pulses of the p-polarization (tp = 10 ns) by fundamental (λ = 1.064 nm) and second harmonics (λ = 0.532 nm) are submitted. The morphology of an Au film surface
before and after laser action, Au fragments sizes and their surface distribution were investigated by the atom force
microscopy (AFM). The effect of Au nanoparticles formation was observed only at the second harmonic irradiation (λ=
0.532 μm) in SPR conditions in the Kretschmann configuration. The considerable difference between the average Au nanoparticles sizes δ created at the
SPR conditions, R = Rmin, δ ~ 80 nm that was obtained in the case out of SPR R≠Rmin δ ~ 1350 nm is established. Threshold energy density of micro-ablation Pthn is determined, that one in the case
of SPR Pthn ≈ 5.5 J•cm-2 was essentially lower than in the SPR absence, Pthn ≈ 8 J cm-2. The histogram obtained on the
AFM data has shown a high degree of the height sizes homogeneity of Au nanoparticles. Under the AFM data a
conclusion about the determining contribution of the
plasmon - polariton subsystem in formation process of Au nanoparticles
in SPR conditions at high levels of laser irradiation was made.
L. Fedorenko andM. Yusupov
"Self-organizing laser induced Au nanocrystall formation in
conditions of surface plasmon resonance", Proc. SPIE 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6), 714210 (2 December 2008); https://doi.org/10.1117/12.815449
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L. Fedorenko, M. Yusupov, "Self-organizing laser induced Au nanocrystall formation in conditions of surface plasmon resonance," Proc. SPIE 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6), 714210 (2 December 2008);