How A Laser Works. Vector Diagram. Mirrors At Each End Reflect The Photons Back And Forth, Continuing This Process Of Stimulated Emission And Amplification. The Photons Leave Through The Partially Silvered Mirror
What is stimulated emission in lasers?
Two-Photon FLIM with a Femtosecond Fibre Laser - Becker & Hickl GmbH
Vintage 1986 Entertech Photon Phaser System pair of Toy Gun Laser Tag & target | eBay