Yttrium neodymium-doped

Neodymium-doped yttrium aluminum garnet laser (NldiYAG)... 

Neodymium-doped yttrium-aluminum garnet is among the most commonly applied laser material and has broad application (neodymium-YAG). 

Solid-state lasers, such as the ruby laser, neodymium doped yttrium aluminium garnet (Nd-YAG) laser and the titanium doped sapphire laser. 

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To explain this application, we consider the schematic drawing of a giant pulse laser, shown in Fig. 7. Such a laser consists essentially of (1) a rod of active material AM (for example a ruby or neodymium glass or neodymium-doped rod of yttrium-aluminum garnet) excited by the light pulse from a flashlamp F,... 

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Before the invention of lasers in 1960 (Maiman), radiation emitted by the mercury arc, especially at 435.8 and 404.7 nm, has been u.sed for exciting Raman spectra (Brandmiiller and Moser, 1962). Today, most types of lasers ( continuous wave (cw) and pulsed, gas, solid state, semiconductor, etc.), with emission lines from the UV to the NIR region, are used as radiation sources for the excitation of Raman spectra. Especially argon ion lasers with lines at 488 and 515 nm are presently employed. NIR Raman spectra are excited mainly with a neodymium doped yttrium-aluminum garnet laser (Nd YAG), emitting at 1064 nm. 

In a solid state laser, the active species is distributed throughout a solid, usually crystalline, material, although glass can also be used as a host. The lasers are robust and frequently tunable, though heat dissipation can sometimes be an issue. Certain types of solid state crystals, for example neodymium-doped yttrium aluminum garnet (Nd YAG), can be pumped by diode lasers instead of by other lasers or by flashlamps, which is often the case for other materials. Such diode-pumped, solid state systems are reliable, economical, compact, and easy to operate—in fact, many commercial systems are turnkey, needing only to be plugged in and turned on to operate. 

One of the most widely used lasers today is the yttrium-aluminum-garnet (YAG) laser. YAG lasers often contain other elements. These elements change the kind of light produced by the laser in one way or another. The laser is said to be doped with another element if it contains a small amount of that element. An example of this kind of laser is one doped with neodymium. The neodymium-doped YAG (Nd YAG) laser has been used to make long distance measurements. 

Laser Ablation [7]. The modern method for quantitative solid analyses is carried out using a laser ablation technique (Figure 2.16). The laser, usually in the form of Nd YAG (Neodymium - Doped Yttrium Aluminium Garnet), is focused on to the surface of a sample which, by continuous pulsing, leads to vaporisation at that point and the vapour is transported directly to the plasma with argon for detection and quantification. Detection limits are... 

Many real-world samples fluoresce when iUuminated with visible light, especially green light from a frequency-doubled neodymium-doped yttrium aluminum garnet (Nd-YAG) laser at 532nm or from an argon ion laser at 488 or 514.5nm. 

J.R. Lu, et al., Neodymium doped yttrium aluminum garnet (Y3A15012) nanocrystalline ceramics - a new generation of solid state laser and optical materials.. /. Alloys Compd. 341(1-2), 220-225 (2002). 

Acronym of neodymium-doped yttrium aluminum garnet. 

Laser based on neodymium-doped yttrium-aluminium garnet. The emission wavelength is 1,064 nm, the power can be up to several tens of W. Mode-synchronisation delivers picosecond pulses at a repetition rate of 50 to 100 MHz. 

For pico- and femtosecond studies, time-resolved measurements require powerful pulsed laser systems operated in conjimction with effective detection techniques. Relevant commercially available laser systems are based on Ti sapphire oscillators, tunable between 720 and 930 nm (optimum laser power around 800 nm). For nanosecond work, Nd iYAG (neodymium-doped yttrium-alumi-num-gamet) (1064 nm) and ruby (694.3 nm) laser systems are commonly employed. For many applications, light pulses of lower wavelength are produced with the aid of appropriate nonlinear crystals through second, third, or fourth harmonic generation. For example, short pulses of 2=532, 355, and 266 nm are generated in this way by means of Nd " YAG systems. Moreover, systems based... 

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