26 January 2009 Observation of whispering gallery modes in the mid-infrared with a quantum cascade laser: possible applications to nanoliter chemical sensing
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Abstract
Excitation of the whispering gallery modes (WGM) of a CaF2 ball resonator is demonstrated at 4.5 micron with a pulsed Quantum Cascade laser. A prism coupling scheme for mid-infrared is described. Future applications of WGM resonators as hyphenated inline chromatography sensors are discussed.
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Sheng Wu, Sheng Wu, Andrei Deev, Andrei Deev, } "Observation of whispering gallery modes in the mid-infrared with a quantum cascade laser: possible applications to nanoliter chemical sensing", Proc. SPIE 7222, Quantum Sensing and Nanophotonic Devices VI, 72220F (26 January 2009); doi: 10.1117/12.817879; https://doi.org/10.1117/12.817879
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