Patent ID: 8649000

Claim:
A spectroscopic probe for measuring a spectrum of an analyte, comprising: at least one whispering gallery mode optical resonator disposed on a support, the whispering gallery mode optical resonator comprising a continuous outer surface having a cross section comprising a first diameter and a second diameter, wherein the first diameter is greater than the second diameter and the analyte is in contact with the outer surface of the optical resonator; a spectrometer comprising an outlet source of electromagnetic radiation and an inlet source coupled to a spectroscopic detector, the outlet source and the inlet source are coupled to the spectroscopic detector and are each located at a distance away from the outer surface of the optical resonator which is greater than an evanescent coupling distance of the optical resonator; and, wherein the optical resonator is disposed in an optical path of the spectrometer to optically couple the optical resonator with the electromagnetic radiation of the outlet source so that the analyte is irradiated with evanescent radiation from the optical resonator.