Single 5-nm quantum dot detection via microtoroid optical resonator photothermal microscopy
Shuang Hao,
Sartanee Suebka,
Judith Su
Abstract:Label-free detection techniques for single particles and molecules play an important role in basic science, disease diagnostics, and nanomaterial investigations. While fluorescence-based methods are tools for single molecule detection and imaging, they are limited by available molecular probes and photoblinking and photobleaching. Photothermal microscopy has emerged as a label-free imaging technique capable of detecting individual nanoabsorbers with high sensitivity. Whispering gallery mode (WGM) microresonato… Show more
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