In case you haven’t yet noticed my Flickr photo feed in the widget column, I thought I’d show you some of my more physics oriented photos.
They are all of the diffraction patterns (pretty colours!) on one or more CDs or DVDs. The set is called “Nanometre Order” as the gaps between the binary peaks and troughs on the disc surface are of the order of a few hundred nanometres. Thus visible light – electromagnetic radiation with a wavelength of about to , i.e. ~350 to ~750 nanometres – is diffracted by these gaps. This, of course, obeys the diffraction equation , which features in some of the photos.
- Diffraction in water (physicsforums.wordpress.com)
- Diffraction in water (worldscientists.wordpress.com)
- Diffraction in Cheesy Glasses (maxmatsuda.wordpress.com)
- First Lens to Produce Nanometre Images With Visible light (nextbigfuture.com)
- New beamline at MAX II opens for research (physorg.com)