Disclosed is an apparatus and method for obtaining images using coherent anti-stokes Raman scattering. Video frames are captured for processing at a still picture capture rate that is lower than the video input frame rate. The further data inputs and outputs are connected to one another by data line sections in such a manner that the interlocking elements form a shift register which provides a scan path. Further, the present invention provides an electrostatic latent image developer containing the toner. The printing system is caused to retrieve the file from the server via the path. In treatment regimes requiring recovery time between successive radiation treatments, applicators of the invention are retained under the skin, with the skin allowed to at least partially heal, and are re-accessed later for one or more subsequent treatments.