Categories By Element
Categories By Function
The lively laser medium (additionally called advantage medium or lasing medium) is the supply of optical benefit inside a laser. The advantage results from the stimulated emission of digital or molecular transitions to a lower strength nation from a better electricity nation formerly populated by a pump supply.
Examples of lively laser media include:
sure crystals, commonly doped with uncommon-earth ions (e.g. neodymium, ytterbium, or erbium) or transition steel ions (titanium or chromium); most usually yttrium aluminium garnet (Y3Al5O12), yttrium orthovanadate (YVO4), or sapphire (Al2O3); and now not regularly Caesium cadmium bromide (CsCdBr3)
Glasses, e.g. silicate or phosphate glasses, doped with laser-active ions;
Gases, e.g. mixtures of helium and neon (HeNe), nitrogen, argon, carbon monoxide, carbon dioxide, or steel vapors;
Semiconductors, e.g. gallium arsenide (GaAs), indium gallium arsenide (InGaAs), or gallium nitride (GaN).
beverages, within the shape of dye answers as utilized in dye lasers.
with a view to hearth a laser, the energetic benefit medium need to be in a nonthermal energy distribution referred to as a populace inversion. The guidance of this state calls for an outside power supply and is referred to as laser pumping. Pumping can be finished with electric currents (e.g. semiconductors, or gases through high-voltage discharges) or with light, generated through discharge lamps or by way of other lasers (semiconductor lasers). greater special advantage media can be pumped by chemical reactions, nuclear fission, or with high-power electron beams.
Nd: GdVO4 (Neodymium-doped Gadolinium Orthovanadate) is an excellent material for diode-pumped lasers. It combines great advantages in many basic properties, featuring large stimulated emission cross-section, high absorption coefficient, and wide bandwidth at the pump wavelength. It is a good choice for high power diode-pumped solid-state lasers.
Ytterbium-doped Potassium-Gadolinium Tungstate (Yb:KGd (WO4)2 or Yb: KGW) is an excellent crystal which can be used as lasing materials to generate ultrashort high power pulses. It is one of the best materials for high power thin-disk lasers.
Titanium-doped sapphire (Ti:sapphire) crystals have excellent physical and optical properties. These crystals have an absorption band in the green region and can be used in medical laser systems, lidars and laser spectroscopy. Stanford Advanced Materials(SAM) has successfully grown large (Dia.120mm x length 80mm) Ti:Sapphire by employing Temperature...
Er: YAG is a famous laser crystal which lases at 2.94μm. Er: YAG can be widely used in medical, such as dental (hard tissues), orthopedics, etc. Stanford Advanced Materials (SAM) can offer high quality and competitive price also quick delivery. Er: YAG crystal can operate well at room temperature and in a relatively eye-safe wavelength range.
Ho:Cr:Tm:YAG is a high efficiency laser material which lasers at 2.1µm. Ho:Cr:Tm:YAG operates in a relatively eye-safe wavelength range and has very high slope efficiency. It can be widely used in medical, military and meteorology fields.
Nd: YAG (Neodymium-doped Yttrium Aluminum Garnet) is the earliest and most famous laser crystal for solid-state laser. Nd: YAG has many typical features: high gain, low threshold, and high efficiency. The fluorescence lifetime of Nd: YAG is twice that of Nd: YVO4 and its thermal conductivity is also better. It can be used to provide a green laser for SHG...
Nd:Ce:YAG can be widely used for no-water cooling and miniature laser systems. The characteristics of Nd:Ce:YAG is high efficiency, low threshold, anti-violet radiation and high repetition frequency for lasers operation. It has low threshold and very high slope efficiency.
Stanford Advanced Materials (SAM) provides Cr4+: YAG with Cr4+ doping level from 0.5mol% to 3mol%. The size could be from 2×2mm2 to 14×14mm2 with length from 0.1mm to 12mm available. We can control the initial transmission from 10% to 92% according to customers’ requirements.
Nd: YLF (Neodymium-doped Yttrium Lithium Fluoride) emission wavelengths are 1053, 1047, 1313, 1324, and 1370 nm. Stanford Advanced Materials (SAM) provides Nd: YLF crystals which are using the Czochralski method. The use of high-quality materials and precise inspection of scattering particle assures the quality of crystals.