Cr GSGG Q Switch Crystals 1.9424 Refractive Index At 1064 Nm High Efficiency

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-Cr GSGG Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: Cr:GSGG Emission Wavelength (nm): 1061.2
Emission Cross Section (pm2)a: 13 R2->Y3 Transition Linewidth (cm-1): 11.5
Refractive Index At 1064 Nm: 1.9424 Density (g*cm-3): 6.495
High Light:

magnesium aluminate spinel


co spinel

Product Description

Gadolinium scandium gallium garnet(GSGG) codoped with Cr is a laser material with high efficiency. An electro-optic shutter element was first utilized to provide Q-switched operation of the ruby laser. Passive Q-switched ruby lasers were achieved with saturable dye absorbers and colored glass (compounds of selenium and cadmium sulfide. Recently the operational characteristics of a dye Q-switch for a pulsed ruby laser was still studied for application in underwater holography. However, the dye Q-switch was limited in durability because of degradation (decomposition) of the dyes and the glass Q-switch was readily damaged. Thus, the tetravalent chromium doped gadolinium scandium gallium garnet Gd3Sc2Ga3O12 (Cr4+: GSGG) passive Q-switch ruby laser-offers for the first time high reliability, durability and high efficiency.

Cr:GSGG crystal a crystal which shows high efficiency and high reliability.

Cr4+: GSGG has been utilized for the first time to provide a saturable absorber Q-switch for the ruby laser. Single output pulse operation (100 mJ and 27 ns duration) with efficiencies relative to the free-running ruby laser operation of 25-30% was routinely obtained. The crystalline material GSGG:Cr3+ is currently of interest as a broad-band, room temperature laser material. The small separation between the 4T2 and 2E electronic levels of Cr3+ in the system can result in interesting spectroscopic behaviour. People have investigated the temperature dependence of the CW and transient luminescence, and have found it to be consistent with a model for the dominant Cr3+ site in which the lowest energy 2E and 4T2 levels are approximately coincident in energy at low temperature.


Spectroscopic properties

Emission wavelength (nm) 1061.2
Emission cross section (pm2)a 13
R2->Y3 transition linewidth (cm-1) 11.5
Nd3+ fluorescence lifetime (ps) at low concentrations (<1017cm-3 ) 273-283
Nd3+ concentration for which lifetime is reduced by 50% (1020 Nd ions cm-3) 5

Optical properties

Refractive index at 1064 nm 1.9424
Index change with temperature, dn/dt,(10-6 k-1) 10.9
Elasto-optic constants  
P11 -0.0120.003
P12 0.0190.003
P44 -0.06650.0013

Thermo-mechanical Properties

Density (g*cm-3) 6.495
Heat capacity (J*g-1*K-1) 0.4029
Thermal conductivity (W*m-1*K-1) 6
Thermal expansion (10-6 K-1) 7.5
Poisson’s ratio 0.28
Young’s modulus (GPa) 210
Fracture toughness (MPa ) 1.2
Thermal- stress resistance (W*m-1)b 660

Contact Details

Phone Number : +8618699681379