ArticleNanomaterials (Basel, Switzerland)2019
On-Chip Real-Time Chemical Sensors Based on Water-Immersion-Objective Pumped Whispering-Gallery-Mode Microdisk Laser.
Article in Nanomaterials (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Highly sensitive microdisk laser sensor for refractive index sensing via periodic meta-hole patterning.Nanophotonics (Berlin, Germany) · 2025Article
- Competitive Growth of Ge Quantum Dots on a Si Micropillar with Pits for a Precisely Site-Controlled QDs/Microdisk System.Nanomaterials (Basel, Switzerland) · 2023Article
- Excitonic Mechanisms of Stimulated Emission in Low-Threshold ZnO Microrod Lasers with Whispering Gallery Modes.Materials (Basel, Switzerland) · 2022Article
- Electrically Tunable Polymer Whispering-Gallery-Mode Laser.Materials (Basel, Switzerland) · 2022Article
- Optical Whispering-Gallery-Mode Microbubble Sensors.Micromachines · 2022Review
- Pronounced Linewidth Narrowing of Vertical Metallic Split-Ring Resonators via Strong Coupling with Metal Surface.Nanomaterials (Basel, Switzerland) · 2021Article
- Dynamics and Applications of Photon-Nanostructured Systems.Nanomaterials (Basel, Switzerland) · 2020Article
- Spectral Modulation of Optofluidic Coupled-Microdisk Lasers in Aqueous Media.Nanomaterials (Basel, Switzerland) · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Optical whispering-gallery-mode (WGM) microresonator-based sensors with high sensitivity and low detection limit down to single unlabeled biomolecules show high potential for disease diagnosis and clinical application. However, most WGM microresonator-based sensors, which are packed in a microfluidic cell, are a "closed" sensing configuration that prevents changing and sensing the surrounding liquid refractive index (RI) of the microresonator immediately. Here, we present an "open" sensing configuration in which the WGM microdisk laser is directly covered by a water droplet and pumped by a water-immersion-objective (WIO). This allows monitoring the chemical reaction progress in the water droplet by tracking the laser wavelength. A proof-of-concept demonstration of chemical sensor is performed by observing the process of salt dissolution in water and diffusion of two droplets with different RI. This WIO pumped sensing configuration provides a path towards an on-chip chemical sensor for studying chemical reaction kinetics in real time.
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Registered trials
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