Observation of whispering gallery modes in the mid-infrared with a quantum cascade laser: possible applications to nanoliter chemical sensing

Sheng Wu; Andrei Deev

doi:10.1117/12.817879

26 January 2009 Observation of whispering gallery modes in the mid-infrared with a quantum cascade laser: possible applications to nanoliter chemical sensing

Sheng Wu, Andrei Deev

Author Affiliations +

Proceedings Volume 7222, Quantum Sensing and Nanophotonic Devices VI; 72220F (2009) https://doi.org/10.1117/12.817879
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

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 and 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); https://doi.org/10.1117/12.817879

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