BUSTOS MARUN RAUL ALBERTO
Congresos y reuniones científicas
Título:
Mirrored Graded Chains as Deep-Subwavelenght Light Concentrators.
Autor/es:
NATALIA ESTEVES-LÓPEZ; HORACIO M. PASTAWSKI; RAUL BUSTOS MARUN
Lugar:
Córdoba
Reunión:
Encuentro; Tercer Reunión NanoCórdoba 2014; 2014
Institución organizadora:
Universidad Nacional de Córdoba
Resumen:
In this work we study a kind of aperiodic arrays of
nanoparticles (NPs) forms by two opposed and equal
graded-chains of NPS which concentrates the external
electromagnetic fields even in the cuasistatic limit. The
phenomenon was understood by interpreting the system as
an effective cavity where plasmonics excitations are trapped
between effective band edges, consequence of the change
of passband with NP's position. Dependence of excitation
concentration with several system's parameter was also
assessed. Including, different models for distance changing,
the degree of changing of distances with position, as well as
NP's couplings, damping, and resonant frequencies. In the
spirit of the law of corresponding states, we developed a
theory that allows one to rationalize all these system's
parameters into universal curves. The theory is quite general
and can also be used on many other situations. Our results
can find applications on sensing, near field imaging,
plasmon-enhanced photodetectors, as well as for increasing
solar cell efficiency.
nanoparticles (NPs) forms by two opposed and equal
graded-chains of NPS which concentrates the external
electromagnetic fields even in the cuasistatic limit. The
phenomenon was understood by interpreting the system as
an effective cavity where plasmonics excitations are trapped
between effective band edges, consequence of the change
of passband with NP's position. Dependence of excitation
concentration with several system's parameter was also
assessed. Including, different models for distance changing,
the degree of changing of distances with position, as well as
NP's couplings, damping, and resonant frequencies. In the
spirit of the law of corresponding states, we developed a
theory that allows one to rationalize all these system's
parameters into universal curves. The theory is quite general
and can also be used on many other situations. Our results
can find applications on sensing, near field imaging,
plasmon-enhanced photodetectors, as well as for increasing
solar cell efficiency.
