Description

Gadolinium Gallium Garnet (GGG) is a high-purity synthetic crystalline material belonging to the garnet family. Its primary value lies in its excellent optical, magnetic, and structural properties, making it a critical substrate material in advanced technology sectors. This compound is essential for manufacturers and research institutions in the fields of solid-state lasers, magneto-optical devices, and semiconductor epitaxy.

Application

• Laser Crystal Substrates: Primary use as a lattice-matched substrate for the epitaxial growth of high-quality thin-film garnets, such as Yttrium Iron Garnet (YIG) and other doped garnets for solid-state lasers.
• Magneto-Optical Devices: Serves as a key component in Faraday rotators, optical isolators, and circulators due to its high Verdet constant and transparency in the near-infrared region.
• Semiconductor Research: Used as a substrate for the deposition of various semiconductor films in research and development of novel electronic and photonic devices.
• Acoustic-Optic & Electro-Optic Components: Employed in the fabrication of modulators and deflectors that control light using sound waves or electric fields.
• Jewelry & Simulants: Occasionally used as a diamond simulant in jewelry due to its high refractive index and dispersion, though this is a niche application.
• Scientific Research: Utilized in fundamental physics and materials science research, including studies on crystal growth, magnetic properties, and lattice dynamics.

Basic Information

Product Name	Gadolinium Gallium Garnet
CAS No.	12024-36-1
Molecular Formula	Gd3Ga5O12
Molecular Weight	1012.35 g/mol
Synonyms	GGG; Gadolinium Gallium Oxide Garnet; Gadolinium Gallium(III) Oxide (5:3:12); Gadolinium Gallium Sesquioxide; Tris(gadolinium) pentagallium dodecaoxide; Gadolinium Gallium Oxide (Gd3Ga5O12); Garnet, Gadolinium Gallium
EINECS	234-686-9

Quality Control

Our Gadolinium Gallium Garnet is produced under stringent conditions to ensure high crystallographic quality and chemical purity, suitable for demanding optoelectronic applications. Each batch is characterized for key parameters including lattice constant, orientation, and optical quality. Certificates of Analysis (COA) detailing specific lot specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store at room temperature (15-25°C) in a clean, dry environment to prevent surface contamination. Handle with care to avoid chipping or scratching the polished surfaces of crystal wafers or substrates.

Specification

Item	Specification
Appearance	Colorless to pale yellow crystals or wafers
Crystal Structure	Cubic Garnet
Lattice Constant	~12.383 Å
Orientation	<111>, <100>, or <110> (specify)
Surface Finish	Polished (one or both sides)
Thickness	0.5 mm, 1.0 mm, or as specified
Diameter	Up to 2 inches (50.8 mm) or as specified
Dislocation Density	< 10 cm-2
Surface Roughness (Ra)	< 5 Å (on polished surface)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.