Search results
Results From The WOW.Com Content Network
Laser rods (from left to right): Ruby, alexandrite, Er:YAG, Nd:YAG. A solid-state 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. [1] Semiconductor-based lasers are also in the solid state, but are generally considered as a separate class from solid-state lasers, called ...
Neodymium-doped solid state lasers continue to be the laser source of choice for industrial applications. Direct pumping of the upper Nd laser level at 885-nm (rather than at the more traditional broad 808-nm band) offers the potential of improved performance through a reduction in the lasing quantum defect, thereby improving system efficiency ...
A ruby laser is a solid-state laser that uses a synthetic ruby crystal as its gain medium. The first working laser was a ruby laser made by Theodore H. "Ted" Maiman at Hughes Research Laboratories on May 16, 1960. [1] [2] Ruby lasers produce pulses of coherent visible light at a wavelength of 694.3 nm, which is a deep red color.
Dye lasers and some vibronic solid-state lasers have extremely large bandwidths, allowing tuning over a range of tens to hundreds of nanometres. [23] Titanium-doped sapphire is the most common tunable solid-state laser, capable of laser operation from 670 nm to 1,100 nm wavelengths. [24]
A green laser pointer is a frequency doubled Nd:YVO 4 diode-pumped solid state laser . [48] Nd:YAG can be also made to lase at its non-principal wavelength. The line at 946 nm is typically employed in "blue laser pointer" DPSS lasers, where it is doubled to 473 nm. [49] [50] [51]
This improved gain medium was central to the demonstration of the first tunable narrow-linewidth solid-state dye laser oscillators, by Duarte, [8] which were later optimized to deliver pulse emission in the kW regime in nearly diffraction limited beams with single-longitudinal-mode laser linewidths of ≈ 350 MHz (or ≈ 0.0004 nm, at a laser wavelength of 590 nm). [9]
The Kanata Valley Lasers began play in the Central Junior Hockey League in 1987-88 when an expansion franchise was granted to Kanata, Ontario, which was then a separate suburb of Ottawa. During their first 15 years as the Valley Lasers, the team never missed the playoffs, had the same head coach, Archie Mulligan, won 2 Art Bogart Cup ...
Semiconductor lasers (laser diodes) are typically not referred to as solid-state lasers. Neodymium is a common dopant in various solid-state laser crystals, including yttrium orthovanadate (Nd:YVO 4), yttrium lithium fluoride and yttrium aluminium garnet . All these lasers can produce high powers in the infrared spectrum at 1064 nm.