However, after being doped with an appropriate ion, YAG is commonly used as a host material in various solid-state lasers.
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20 Facts About YAG
2.
Cerium-doped YAG is used as a phosphor in cathode ray tubes and white light-emitting diodes, and as a scintillator.
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3.
Neodymium-doped YAG was developed in the early 1960s, and the first working Nd:YAG laser was invented in 1964.
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4.
Neodymium-YAG is the most widely used active laser medium in solid-state lasers, being used for everything from low-power continuous-wave lasers to high-power Q-switched lasers with power levels measured in the kilowatts.
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5.
The thermal conductivity of Nd:YAG is higher and its fluorescence lifetime is about twice as long as that of Nd:YVO4 crystals, however it is not as efficient and is less stable, requiring more precisely controlled temperatures.
| FactSnippet No. 978,744 |
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Chromium6.
Nd:YAG is pinkish-purple, with lighter-doped rods being less intensely colored than heavier-doped ones.
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7.
YAG doped with neodymium and chromium has absorption characteristics which are superior to Nd:YAG.
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8.
Er:YAG operates at wavelengths where the threshold for eye damage is relatively high, works well at room temperature, and has high slope efficiency.
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9.
Yb:YAG has very low fractional heating, very high slope efficiency, and no excited-state absorption or up-conversion, high mechanical strength and high thermal conductivity.
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10.
Neodymium-cerium double-doped YAG is an active laser medium material very similar to Nd:YAG.
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11.
Holmium-chromium-thulium triple-doped YAG is an active laser medium material with high efficiency.
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13.
Cr:YAG has high damage threshold, good thermal conductivity, good chemical stability, resists ultraviolet radiation, and is easily machinable.
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14.
Cr:YAG has been demonstrated in an application of non-linear optics as a self-pumped phase-conjugate mirror in a Nd:YAG "loop resonator".
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15.
Dysprosium-doped YAG is a temperature-sensitive phosphor used in temperature measurements.
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16.
Samarium-doped YAG is a temperature-sensitive phosphor similar to Dy:YAG.
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17.
Terbium-doped YAG is a phosphor used in cathode ray tubes.
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18.
Cerium-doped YAG is a phosphor, or a scintillator when in pure single-crystal form, with a wide range of uses.
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19.
Ce:YAG is used in some mercury-vapor lamps as one of the phosphors, often together with Eu:YO4 .
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20.
Ce:YAG is used in PET scanners, high-energy gamma radiation and charged particle detectors, and high-resolution imaging screens for gamma, x-rays, beta radiation and ultraviolet radiation.
| FactSnippet No. 978,759 |