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Line laser with interchangeable lenses. A line laser is a device that employs a laser and an optical lens to project the laser beam as a line rather than a point (e.g. laser pointer). This may be achieved by passing the beam through a cylindrical lens or a Powell lens. [1]
On the right, the spectrum of the supercontinuum is shown after the output beam passed through a prism. The higher the pump intensity, the broader the supercontinuum. The pump laser is an 800nm femtosecond laser. In the decade leading up to 2014, the development of supercontinua sources emerged as a research field. [2]
Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).
Helium–neon laser at the University of Chemnitz, Germany. A helium–neon laser or He–Ne laser is a type of gas laser whose high energetic gain medium consists of a mixture of helium and neon (ratio between 5:1 and 20:1) at a total pressure of approximately 1 Torr (133 Pa) inside a small electrical discharge.
The end-to-end length of the path the laser beam travels, including switches, is about 1,500 metres (4,900 ft). The various optical elements in the beamlines are generally packaged into Line Replaceable Units (LRUs), standardized boxes about the size of a vending machine that can be dropped out of the beamline for replacement from below. [39]
A laser is a device that emits ... short pulses of neutrons exciting the upper isomer state in a solid so the gamma-ray transition could benefit from the line ...