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16 March 2023 Single particle material characterization using microtoroid optical resonators (Conference Presentation)
Shuang Hao, Sartanee Suebka, Judith Su
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Proceedings Volume PC12391, Label-free Biomedical Imaging and Sensing (LBIS) 2023; PC123910K (2023) https://doi.org/10.1117/12.2650887
Event: SPIE BiOS, 2023, San Francisco, California, United States
Abstract
Label-free detection techniques are widely used in biological and environmental sensing. In particular, whispering gallery mode microtoroid resonators have been used to detect single nanoparticles and molecules by relying on the ultrahigh quality factor of these resonators together with frequency locking for ultra-precise resonance tracking. However, material property characterization on a particle-by-particle basis remains a challenge in these label-free schemes. Here we characterize single particle material properties using microtoroid optical resonators combined with spectroscopic techniques.
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Shuang Hao, Sartanee Suebka, and Judith Su "Single particle material characterization using microtoroid optical resonators (Conference Presentation)", Proc. SPIE PC12391, Label-free Biomedical Imaging and Sensing (LBIS) 2023, PC123910K (16 March 2023); https://doi.org/10.1117/12.2650887
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KEYWORDS
Particles
Optical resonators
Material characterization
Molecules
Quantum dots
Luminescence
Absorption
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