how do you use the lasers to look at how squishy they are

Question: how do you use the lasers to look at how squishy they are
- Keywords:
  laser,
  squishy
Asked by the_engie31 to Dawn on 11 Nov 2016.
- Dawn Gillies answered on 11 Nov 2016:
  
  I point the laser at the sample, then I use the light that’s scattered back from it to build an image. This lets us image ‘in depth’ so we can make a 3D image. The imaging is really fast so we can look at a cell in real time as we squash it to se how it deforms.

Question: how do you use the lasers to look at how squishy they are