A microscale technique known as optical trapping uses beams of light as tweezers to hold and manipulate tiny particles. Researchers have found a new way to trap particles smaller than 10 nanometers -- ...

We present a single-molecule instrument that combines a time-shared ultrahigh-resolution dual optical trap interlaced with a confocal fluorescence microscope. In a demonstration experiment, we ...

Figure 1. (a) Schematic diagram of the optical trapping-enhanced SERS optofluidic detection system; (b) effect of the single-beam optical trap module switch state on AgNPs aggregation; (c1) and (c2) ...