Fig. 2: Optical system design. | Nature Communications

Fig. 2: Optical system design.

From: Holographic detection of nanoparticles using acoustically actuated nanolenses

Fig. 2

A standing Lamb-type wave mode transformation from a SAW transducer is illustrated. This wave spatially distorts the liquid due to pressure differences. At the antinodes, the liquid forms a thin layer over nanoparticles. This creates a localized lensing effect, enhancing the optical signal and hence the detection of nanoparticles in liquid. The height of the wave can be tuned by adjusting the input power which allows the tuning of the lensing effect.

Back to article page