Lasers: A Double Edged Sword

Laser is an acronym, which stands for light amplification by stimulated emission of radiation. Several decades ago, the laser was a death ray, the ultimate weapon of destruction, something you would only find in a science fiction story. Then lasers were developed and actually used, among other places, in light shows. However as the every coin have two sides there are various complications and safety measures which are required to be kept in mind, while using lasers. The following review has be made keeping in mind the initial points which includes the history, physics of lasers, types of lasers, complications in lasers and safety measures in lasers.