Metal Nanostructures With Rare Earth Ions For Increase the Efficiency Of Optical Amplifiers for 1.54 microns wavelength
G.
A. Denisenko
1,2,
A. A.
Kurushin 3
1
A.V.Shubnikov Institute of
Crystallography, Russian Academy of Sciences, Moscow, Russia
2
D.V.Skobeltsyn Institute of Nuclear Physics of
Moscow State University
3
Moscow Power Institute, Moscow, Russia
Received
January 23, 2012
Abstract.
Well-ordered metal structures, i.e. arrays of nanosized tips on silver surface
for studies of the luminescence enhancement of absorbed media with rare earth
ions were used. These arrays were prepared by the metal evaporation on track
membranes. Calculations of resonance frequencies of tips regarded as
semispheroids were done taking into account the interaction between dipoles of
tips. Contemporary software for electrodynamics modeling can be applied to
regard the mentioned above nanosized optical systems too. By using FDTD from
CST Microwave Studio preliminary calculations for extinction cross section of
silver tip arrays and other nanosized gold and silver metal structures have
been performed. Distributions of the electromagnetic fields and different
characteristics of the fields have been obtained.
Keywords: rare earth ions; silver
nanosized tips; luminescence enhancement; optical amplifier; plasmon modes;
numerical modelling of optical systems.