Lötlabor Jena, who makes various hardware by himself, creates a laser microscope from a DVD drive and publishes how to make it and the images actually taken. 'In recent years, DVD drives have been ...

Fig. 1. Multi-focus laser processing for efficient fabrication of a trapezoid groove. (a) Schematic of multi-focus laser processing. (b) Simulated light intensity field of multi-focus spot. (c) 45° ...