Patent ID: 8554024

Claim:
An apparatus for measuring at least one physical manifestation occurring in a medium, said apparatus comprising: (a) a sensor for sensing the physical manifestation, including: (i) a sensing surface for exposure to the medium; (ii) an optical pathway, the optical pathway including a core and a cladding; (iii) a tilted grating responsive to electromagnetic radiation propagating in the optical pathway to induce a propagation of cladding mode electromagnetic waves in the cladding and core mode electromagnetic waves in the core; (iv) the sensing surface defining an interaction interface between the medium and the cladding and allowing the physical manifestation to interact with the cladding mode electromagnetic waves; (b) a measuring device coupled to the optical path for sensing the core mode electromagnetic waves and the cladding mode electromagnetic waves that have interacted with the physical manifestation for deriving information on temperature in the vicinity of the sensing surface and a physical manifestation measurement.