Demonstration of optical trapping for aerosols shows position stability better than 1µm, highlighting potential for advanced spectral sensing.
In this study, we demonstrated the initial trapping of aerosols using a dual-beam optical trapping system. The system employs two counter-propagating beams to stably capture aerosols. Preliminary results show effective confinement with position stability better than 1µm, providing a promising foundation for integrating the system with cavity-enhanced spectrometer for sensitive spectral sensing of their physicochemical mixing states.
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Wen et al. (2025) studied this question.
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