Diode Lasers....Under the Hood 22

With 20 watts of power it should be possible to damage some types of metal ,so in this session I investigate which metals may be susceptible to 455nm wavelength light. With my beam analysis technique, I had already discovered that stainless steel would accept some of the light energy, thus the special oxidization propreties of stainless steel offered the potential for creating the range of oxidizing clours in a controlled manner. We see colours as combination of lightwaves that make up all the colours of the rainbow. When ALL the colours are present we see that as white and when NONE of the colours are present we perceive that as black. We are used to seeing colours as refelections from objects that absorb some of those rainbow wavelengths and reflect the remaining mix for our eye to respond to. That is what I will call pigment colour. There are two other types of colour that nature creates. One you can see in soap bubbles where the colours are created by a process called thin film interference. The second happens when light falls on a uniform micro machined surface (imagine a ploughed field at the molecular level). This causes white light to seperate into its constituent rainbow colors by a process called diffraction. However, depending on the manner and direction of the micro machining, you may see only some of those diffracted colours. This is the way in which nature colours butterfly wings, peacock feathers and beetle shells.

Is a diode laser capable of recreating either of these of natural colouring techniques?? It is certainly not a pigment painter.