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Rare-earth-doped laser gain media, explained by RP Photonics Encyclopedia; trivalent, ions, laser crystals, glasses, neodymium, ytterbium, erbium, thulium, holmium, praseodymium, cerium, lanthanide lasers
FAQs | Maitry Laser Tech
How to Make a Laser (with Pictures) - wikiHow
Wikipedia's “Speed of Light” measurements over the years – Worldviews limit perspective
Laser - Wikipedia
9 Ways to Transmit Audio With a Laser Pen - wikiHow
This Day in Patent History - On March 22, 1960, Schawlow and Townes were issued a patent for the laser - Patent Yogi LLC
Laser ablation - Wikiwand
TIL the US Military designed a laser rifle called the PHASR rifle, which disorients and temporarily blinds the target. It also looks like Storm Rifle in Halo 4. : r/todayilearned
Laser diffraction for particle sizing :: Anton Paar Wiki
Laser - Wikipedia, the free encyclopedia
How the Laser Egg Will Ensure Your Kids Are Breathing Healthy Air at Home
Laser printer
Lasers in manufacturing: a review of technologies and applications | Emerald Insight
Laser Physics (Inter Action of radiation & matter) - YouTube