Resonators: Direct Sensing in Liquids Using Whispering‐Gallery‐Mode Droplet Resonators (Advanced Optical Materials 12/2014)
Source abstract
Abstract
A liquid sample flows through a channel and small droplets are suspended by a capillary or a simple glass wire. In this way, optical resonators with Q-factors exceeding 105 are created by G. Gagliardi and co-workers. On page 1155, a free-space infrared laser beam is focused very close to a sphere's equator to excite whispering gallery modes. The transmitted and scattered beams are simultaneously detected for laser-frequency locking on the resonances and real-time chemical and particle sensing.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Photonic and Optical Devices · Semiconductor Lasers and Optical Devices · Mechanical and Optical Resonators
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Affiliations
Consiglio Nazionale delle Ricerche Istituto Nazionale di Ottica (INO) via Campi Flegrei 34 – Comprensorio A. Olivetti 80078 Pozzuoli (Naples) Italy
Consiglio Nazionale delle Ricerche Istituto Nazionale di Ottica (INO) Largo E. Fermi 6 50125 Firenze Italy
Department of Chemistry Queen's University Kingston (ON) Canada
References
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