Explore: Ruby Lasers

16, 1960. Ruby lasers produce pulses of coherent visible light at a wavelength of 694.3 nm, which is a deep red color. Typical ruby laser pulse lengths

light-pumped synthetic ruby to produce red laser light at a wavelength of 694 nanometers (nm). Ruby lasers are still in use. Rubies are also used in applications

laser is a laser that uses a gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. Semiconductor-based lasers

costs. The two types of lasers commonly used are solid-state lasers (especially ruby lasers and Nd:YAG lasers) and gas lasers. The first type uses one

with the invention of the laser. Maiman's laser led to the subsequent development of many other types of lasers. The laser was successfully fired on May

type of laser, but especially the following: CO2 lasers, used to cut, vaporize, ablate, and photocoagulate soft tissue. diode lasers dye lasers excimer

contrast, most "conventional" lasers (such as the ruby laser) rely on stimulated electronic transitions to amplify light. Raman lasers are optically pumped. However

activity in the crystal, in the same fashion as the red chromium ion in ruby lasers. Laser operation of Nd:YAG was first demonstrated by Joseph E. Geusic [de]

laser if it were operating in a continuous wave (constant output) mode. Compared to mode locking, another technique for pulse generation with lasers,

laser. Today, all such devices operating at frequencies higher than microwaves (approximately above 300 GHz) are called lasers (e.g. infrared lasers,