Nd:YAG (neodymium-doped yttrium aluminum garnet; Nd:Y 3 Al 5 O 12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant , neodymium in the +3 oxidation state, Nd(III), typically replaces a small fraction (1%) of the yttrium ions in the host crystal structure of the yttrium aluminum garnet (YAG), since the two ions are ...

The active medium or laser medium of the Nd:YAG laser is made up of a synthetic crystalline material (Yttrium Aluminum Garnet (YAG)) doped with a chemical element (neodymium (Nd)). The lower energy state electrons of the neodymium ions are excited to the higher energy state to provide lasing action in the active medium.

2024年3月25日 · The microstructural evolution and mechanical properties of IN718 superalloy with different yttrium (Y) contents were investigated. In this study, three alloys containing 0 wt%, 0.07 wt%, and 0.58 wt% of Y were fabricated by laser powder bed fusion (L-PBF).

Neodymium-doped yttrium orthovanadate (Nd:YVO 4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate. It is commonly used as an active laser medium for diode-pumped solid-state lasers .

In medicine, yttrium-based materials are used in medical lasers and biomedical implants. This is extended through the array of available yttrium isotopes to enable roles for 90 Y complexes as radiopharmaceuticals and 86 Y tracers for positron emission tomography (PET) imaging.

2024年7月11日 · Yttrium aluminum garnet (YAG)-based optical fiber is one of the research hotspots in the field of fiber lasers due to its combined advantages of a wide doping range of rare earth ions and the high mechanical strength of YAG material, as well as the flexibility and small size of the fiber structure.

Neodymium-doped yttrium lithium fluoride (Nd:YLF) is a lasing medium for arc lamp-pumped and diode-pumped solid-state lasers. The YLF crystal (LiYF 4) is naturally birefringent, and commonly used laser transitions occur at 1047 nm and 1053 nm. [1] It is used in Q-switched systems in part due to its relatively long fluorescence lifetime.

2024年7月2日 · The neodymium: yttrium-aluminum-garnet (Nd: YAG) laser is one of the most common lasers used in ophthalmology. It is a solid-state laser with a wavelength of 1064 nm that works on the principle of photodisruption.

Yttrium-aluminum garnets (Y 3 A l 5 O 12 or YAG) are synthetic crystals that are widely used as an active laser medium in solid-state lasers, dopant and gemstone (simulated diamond). A magnesium alloy containing Lanthanides, Yttrium, and Zirconium can substitute for magnesium-thorium alloys in aerospace applications.

2024年4月1日 · The medium excited to produce the laser beam is a synthetic crystal rod of yttrium aluminium garnet (YAG) which has been doped with a very small amount of neodymium (Nd) atoms. It is excited by a powerful krypton lamp focused onto the rod by elliptical reflectors.