The ruby laser is a pulse laser with a very short pulse (a few nanoseconds) allowing us to make holograms of less stationary objects. Making holograms with normal beam lasers requires a completely stationary object because if there are any slight vibrations in the object, the hologram will not show an image of the object, but rather will look like sliced bread. However, in a short pulse objects appear to be frozen. So, we can make holograms of objects such as a hand. This is the main benefit of using a ruby pulse laser to make holograms.
Our goal for this project was to get a ruby laser working and make some holograms. The poster includes information on how we built a trigger circuit to time the flashbulb correctly, built a voltage multiplier to get a high voltage power supply, built a safety containment box, and how we wired everything together to make the ruby laser.
Zoe Downing, ’07 Redlands, CA
Majors: Physics, Mathematics
Logan Squiers, ’07 Marshalltown, IA
Majors: Physics, Biology
Sponsor: Derin Sherman