BUSTOS MARUN RAUL ALBERTO
Artículos
Título:
Excitation-Transfer Plasmonic Nano-Sensors Based on Dynamical Phase Transitions
Autor/es:
RAUL A. BUSTOS MARUN; EDUARDO A. CORONADO; HORACIO M. PASTAWSKI
Editorial:
AMER CHEMICAL SOC
Referencias:
Lugar: Washington; Año: 2012 vol. 116 p. 18937 - 18937
Resumen:
ynamical phase transitions (DPTs) describe the abrupt change in the
dynamical properties of open systems when a single control parameter is
slightly modified. Recently, we found that this phenomenon is also
present in a simple model of a linear array of metallic nanoparticles in
the form of a localized?delocalized DPT. In this work we show how to
take advantage of DPTs to design a new kind of plasmonic sensor which
should own some unique characteristics. For example, if it were used as a
plasmon ruler, it would not follow the so-called universal plasmon
ruler equation [Nano Letters2007, 7, 2080?2088], exhibiting instead an on?off
switching feature. This basically means that a signal should be
observed only when the control/measured parameter, that is, a distance
in the case of plasmon rulers, has a very precise and predetermined
value. Here, we demonstrate their feasibility and unique
characteristics, showing that they combine high sensit