%0 Journal Article
%T Optical Slot-Waveguide Based Biochemical Sensors
%A Carlos Angulo Barrios
%J Sensors
%D 2009
%I MDPI AG
%R 10.3390/s90604751
%X Slot-waveguides allow light to be guided and strongly confined inside a nanometer-scale region of low refractive index. Thus stronger light-analyte interaction can be obtained as compared to that achievable by a conventional waveguide, in which the propagating beam is confined to the high-refractive-index core of the waveguide. In addition, slot-waveguides can be fabricated by employing CMOS compatible materials and technology, enabling miniaturization, integration with electronic, photonic and fluidic components in a chip, and mass production. These advantages have made the use of slot-waveguides for highly sensitive biochemical optical integrated sensors an emerging field. In this paper, recent achievements in slot-waveguide based biochemical sensing will be reviewed. These include slot-waveguide ring resonator based refractometric label-free biosensors, label-based optical sensing, and nano-opto-mechanical sensors.
%K integrated optics
%K slot-waveguides
%K optical sensors
%K biosensors
%U http://www.mdpi.com/1424-8220/9/6/4751