KGW, KGd(WO4)2 (Gadolinium potassium tungstate)

Catalog NumberOPTIX00024

CategoryRaman Laser Crystals

Description	KGW serves as a highly efficient excitation Raman laser crystal, known for its excellent performance in a variety of applications. With a wide transmission range, good thermal conductivity, and high damage threshold, KGW maintains exceptional conversion efficiency and beam quality during the Raman frequency conversion process. It is capable of withstanding high pumping power and is versatile enough to work with various wavelengths of pump lasers. This makes KGW particularly suitable for use in Raman lasers, laser frequency conversion, and a wide range of fields such as medical imaging, photodynamic therapy, environmental monitoring, spectroscopy research, and material processing.
Melting Point	1087 ℃
Density	7.27 g/cm3
Shelf Life	One year under proper use.
Chemical Formula	KGd(WO4)2
Clear Aperture	> 90%
Coating	Customized coatings
Crystal Structure	Monoclinic, Space Group C2/c
Dephasing Time	2 ps
Dimension Tolerance	Diameter: ±0.1mm Length: ±0.5 mm
Flatness	<λ/6 @ 633 nm
Hardness	4-5 Mohs
Lattice Parameter	a=8.09 Å, b=10.43 Å, c=7.58 Å
Length	Maximum Length: 50 mm
Orientation	[010]
Parallelism	20 arc sec
Perpendicularity	≤15 arc min
Phase Inversion Temperature	1031 ℃
Raman Frequency Shift	767 cm-1 (p[gg]p) 901 cm-1 (p[mm]p)
Raman Gain	11 cm/GW @532 nm; 3 cm/GW @1064 nm (ps, transient region)
Raman Linewidth	6.4 cm-1@767 cm-1 (p[gg]p) 5.4cm-1@901 cm-1 (p[mm]p)
Refractive Index	@1064 nm: np=1.982; nm=2.010; ng=2.061.
Surface Quality	10/5 to MIL-PRF-13830B
Thermal Conductivity	Ka=2.6 W/m/K Kb=3.8 W/m/K Kc=3.4 W/m/K
Thermal Optical Coefficient	Dnp/dt=-15.7 x 10-6/K DNm/dt=-11.8 x 10-6/K DNg/dt=-17.3 x 10-6/K
Transparency Range	0.3~5 μm
Type	Raman Laser Crystals