right so there are two different ways of getting an image with the microscopy technique with a single laser shot you get a 1d image which is depth resolved so you eliminate along the vertical axis for example then you generally the essentially a volumetric acoustic source but then we use ultrasound transducer to pick up the signals so the acoustic time of rival is gonna tell you the depth information you get a 1d image with a single laser shot then you have to use scan linearly to get a 2d image then you have the if you want to get a 3d image