Biosensors are usually developed from a physical or physicochemical
transducer combined to a biological receptor compound.
Optical methods of transduction offer important practical benefits.
Among others, we can quote their minimally invasive nature,
safety and multi-dimensional detection capability (wavelength,
intensity, phase, polarization, etc.). They rely on well-established
technologies readily available from communication and micronano
technologies industries (lasers, detectors, passive components,
etc.). They are also based on visible and near infrared optical
frequencies, which coincide with a wide range of physical properties
of bio-related materials