Cr Znse Laser Material No Excited State Absorption Upper Level Conversion Broad

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-Cr Znse 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:ZnSe Crystal Structure: Cubic
Poisson Ration: 0.28 Thickness/Diameter Tolerance: ±0.05mm
Orientation Tolerence: < 0.5° Surface Flatness: </8@632nm
High Light:

nd yag laser rod


titanium doped sapphire

Product Description


Cr: ZnSe laser crystal has the advantages of normally no excited state absorption and upper level conversion, an extremely broad absorption band and large emission cross-section, superb fluorescence quantum efficiency at room temperature and extra broad emission width as well as good chemical and mechanical properties, which make it become an excellent source of efficient and powerful tunable mid infrared laser. Because of mid infrared wavelength band is the window of atmosphere, the Cr: ZnSe laser crystal has important application prospect in the field of photo-communication, pollution gas detection, industrial combustion product test and so on.



Material and Specifications
Crystal structure Cubic
Poisson Ration 0.28
Thickness/Diameter Tolerance ±0.05mm
Orientation Tolerence < 0.5°
Surface Flatness </8@632nm
Wavefront Distortion </4@632nm
Surface Quality 10-5(MIL-O-13830A)
Parallel 30
Perpendicular 15
Clear Aperture >90%
Chamfer <0.2×45°
Melting Point 1520 C
Physical and Chemical Properties
Thermal Expansion Coeff. @20C 1.5×10-6/C
Thermal Conductivity Coeff. @20C 14 W/m/K
Specific Heat 0.79 J/g K
Density 5.27 g/cm
Durability Knoop Hardness 112 kgf/mm
Mohs Hardness 8.5
Young‘s Modulus 67 GPa
Modulus of Rupture 55 MPa
Orientation <111>or <100>
Optical and Spectral Properties
Laser Wavelengths 2150 2600 nm
Emission Linewidth <1 nm
Emission Cross-section (@1064nm) 9×10-19 cm
Intrinsic Loss @1064nm <0.003 cm-1
Refractive Index (n) @ 1650nm 2.455
Thermal Optical Coeff. (dn/dT) @nm 61×10-6/C



  • Broad tunability (lasing from 2.1-3.1 m)
  • Broad absorption bands
  • Large gain cross section (emission ~ 910-19 cm2)
  • Minimal problem of excited state absorption (no spin-allowed excited state transitions from the upper laser level)
  • High thermal conductivity better than YAG (18 W/mK in ZnSe versus 13 W/mK in YAG)
  • High IR (0.6-20 m) transparency


  • Surgery
  • Remote sensing
  • Dentistry
  • Free space communications
  • Military applications

Contact Details

Phone Number : +8618699681379