Acoustically Levitated Drop of Human Blood Cells : 2007

Photograph by

Steven Morton FRPS

About this image

A drop of human red blood cells seen being levitated by acoustic radiation pressure. A pressure inducer (bottom) is used to generate intense sound waves. These create a net upward pressure because intense sound fields operate as non-linear systems, their effect is stronger than would be expected from classical physics. Here the sample is studied using laser Raman spectroscopy, levitation means that the structure of living blood cells can be determined without interference from the surface of any container. This image was captured using a Kodak 14n digital camera and Nikon macro lens. School of Physics, Monash University, Victoria, Australia