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WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Gaussian beam
Videos
In optics, a Gaussian beam is an idealized beam of electromagnetic radiation whose amplitude envelope in the transverse plane is given by a Gaussian function; this also implies a Gaussian intensity pr
A 5 mW green laser pointer beam, showing the TEM00 profile
A 5 mW green laser pointer beam, showing the TEM00 profile
Transverse amplitude profile of the lowest order even Ince–Gaussian modes
Transverse amplitude profile of the lowest order even Ince–Gaussian modes
Intensity profiles of the first 12 Laguerre–Gaussian modes
Intensity profiles of the first 12 Laguerre–Gaussian modes
Laser
Videos
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser originated as an acronym for light amplifi
Gaussian beam
…this also implies a Gaussian intensity (irradiance) profile. This fundamental (or TEM00) transverse Gaussian mode describes the intended output of many lasers, as such a beam diverges less and can be focused better than any other. When a Gaussian beam is refocused by an ideal lens, a new Gaussian beam is…
A telescope in the Very Large Telescope system producing four orange laser guide stars
A telescope in the Very Large Telescope system producing four orange laser guide stars
A laser can produce a very narrow beam of light of a single wavelength, in this case, green.
A laser can produce a very narrow beam of light of a single wavelength, in this case, green.
A helium–neon laser demonstration. The glow running through the center of the tube is an electric discharge. This glowing plasma is the gain medium fo
A helium–neon laser demonstration. The glow running through the center of the tube is an electric discharge. This glowing plasma is the gain medium for the laser. The laser produces a tiny, intense spot on the screen to the right. The center of the spot appears white because the image is overexposed there.
Red (660 & 635 nm), green (532 & 520 nm), and blue-violet (445 & 405 nm) lasers
Red (660 & 635 nm), green (532 & 520 nm), and blue-violet (445 & 405 nm) lasers