CONTAMINANT DETECTORS USED SENSING

Brand	Owner	Address	Description
CB-SENTINEL	MesoSystems Technology, Inc.	1001 Menaul Blvd. Albuquerque NM 87107	contaminant detectors used for sensing the presence of chemical and/or biological contaminants in mail and parcels;CB SENTINEL;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A sensor includes an optical resonator, a trap, and a measurement system. The trap is positioned to hold captured contaminant within an evanescent field of the optical resonator. The measurement system can detect the effect of the captured contaminant on the optical resonator. The sensor can includes a photonic crystal that contains defects forming the optical resonator and a waveguide to which the optical resonator is coupled. Yet another embodiment is a sensing method that exposes a trap that is adjacent to an optical resonator to an environment that may contain a contaminant that the trap can capture. Light having a wavelength that interacts with the contaminant can then be coupled into the optical resonator, and the effect of any captured contaminant on the optical resonator can be measured.