for you vivo imaging what we are doing is to convert light or photons into ultrasound signals so we're talking about acoustic signals here through the photo acoustic effect acoustic scattering is orders of magnitude like a thousand times weaker than optical scattering equivalently on the detection side we've reached case P or KC without invasiveness or toxicity so on the detection site now we're dealing with transparency that allows us to form a sharper image so that's the basic idea behind this technology right let's see