11. A ruby laser is different from a carbon dioxide laser, which is different from an argon laser. 12. He reburbished ( rebuilt ) the very first ruby laser and demonstrated it at Simon Fraser University. 13. In 1962, Willard Boyle, working at Bell Labs, produced the first continuous output from a ruby laser . 14. Ruby lasers generate deep red beams by exciting chromium atoms; the lanthanides are also extensively employed in lasers.15. In their original experiment Sch�fer and colleagues employed a ruby laser to optically excite various infrared organic dyes. 16. Robinson led the effort to improve the power of the ruby laser , eventually increasing it by 100 times. 17. It used a pulsed ruby laser operating at 694.3 nanometers and 200 millijoule pulses of 10 nanoseconds duration. 18. Ruby lasers are still in use.19. Ruby Laser is a type of the solid state laser whose laser medium is a synthetic ruby crystal.20. His original ruby laser , which fit comfortably in a human hand, is now microscopic, but not so the price.
