I'd like to create a photoacoustic system that uses a very inexpensive 0.1 mJ per pulse nanosecond (pulse duration) laser. However, these lasers are typically very expensive (>$10k). The best price I've seen is http://www.ebay.com/itm/Pro-YAG-Q-Switch-Laser-Tattoo-Removal-Eyebrow-removal-machine-500w-/181994029637?hash=item2a5fb08245:g:AEoAAOSwo3pWc5ub, however, I'm looking for something more along the lines of