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ZnGeP2 Zinc Germanium Phosphide Mid With Large Nonlinear Susceptibility

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-ZGP Nonlinear 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: ZnGeP2 Nonlinear Crystals Thermal Conductivity: 180 W/m/K
Melting Point: About 1040°C Mass Density: 4.16 G/cm3
Lattice Parameter: A=b=5.467, C=12.736 Transparency Range: 0.74 - 12 Um
High Light:

zinc germanium phosphide

,

mgo linbo3


Product Description

ZnGeP2 Nonlinear Crystals
 
Zinc germanium phosphide (ZnGeP2) is an excellent mid-IR nonlinear crystal with many outstanding fundamental properties. ZnGeP2 (ZGP) crystal has large nonlinear susceptibility (d36~75 pm/V), which is approximately 160 times that of KDP. ZGP exhibits good optical transparency over the 0.7412 um wavelength region and relatively high laser damage threshold, and is therefore well suited for producing tunable laser output in the near infrared. ZGP is a very promising material for applications such as SHG, SFG, OPO, and OPG/OPA in the mid-infrared region.

 

Features

  • Wide transmission region from 0.74 um to 12um

  • Large nonlinear coefficient

  • Good mechanical and physical properties

  • Relatively high damage threshold

  • Phase matchable over a broad spectral region

  • High thermal conductivity

Applications

  • Second, third, and fourth harmonic generation of CO2 laser

  • Optical parametric generation (OPO) with pumping at a wavelengths of 2.05-2.94 m and possibility to generate effectively 3-10 m ranges

  • Second harmonic generation of CO-laser

  • Producing coherent radiation in sub-millimeter-range from 70.0 m to 1000 m - terahertz range

  • Generation of combined frequencies of CO2- and CO-lasers radiation and other lasers are working in the crystal transparency region

Chemical and Physical Properties

Property

Value

Chemical formula

ZnGeP2

Crystal structure

Tetragonal,`42m

Lattice Parameter

a=b=5.467, c=12.736

Mass density

4.16 g/cm3

Moh hardness

5.5

Melting point

About 1040°C

Thermal conductivity

180 W/m/K

Thermal expansion coefficient

‖,5x10-6/K; ⊥,7.8x10-6/K

Birefringence

positive uniaxial

Linear Optical Properties

Property

Value

Transparency Range

0.74 - 12 um

Absorption Coefficient:

<0.05cm-1 @2050-2100 nm

Refractive Indices

@ 2.05 um

@ 2.79 um

@ 5.30 um

@ 10.6 um

no = 3.1478, ne = 3.1891

no = 3.1333, ne = 3.1744

no = 3.1136, ne = 3.1547

no = 3.0729, ne = 3.1143

Sellmeier Equations( in m)

no2() = 4.64467+5.10087/(2-0.13656)+4.277772/(2-1653.89)

ne2() = 4.71539+5.26358/(2-0.14386)+2.373102/(2-1000.82)

Nonlinear Optical Properties

Property

Value

SHG Phase Matchable Range

3177 10357nm (Type I)

NLO coefficients

d36=758 pm/V

Typedeeo=d36 sin2cos2

Typedoeo=deoo=d36 sinsin2

Damage Threshold

at 2.79 um

at 10.6 um

30 GW/cm2 (150 ps)

1 GW/cm2 (2 ns)

Polishing Specification

Property

Value

Orientation Tolerence

< 0.5°

Thickness/Diameter Tolerance

±0.05 mm

Surface Flatness

</8@632 nm

Wavefront Distortion

</4@632 nm

Surface Quality

10/5

Parallel

30

Perpendicular

15

Contact Details
june

Phone Number : +8618699681379