Abstract
The laser is an oscillator of light using an amplification process based on stimulated emission from atoms in an optical resonator. Laser light has a narrow spectral width and a high degree of spatial coherence. Laser beams are highly directional and can be focused into a tiny spot. Pulsed lasers produce ultrashort light pulses with ultrahigh peak power. Since its invention in 1960, the laser has enabled many scientific discoveries and has been at the core of a plethora of light-based technologies. It is truly a light fantastic.
Cite
CITATION STYLE
Saleh, B. (2016). The laser. In Optics in Our Time (pp. 71–85). Springer International Publishing. https://doi.org/10.1007/978-3-319-31903-2_4
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