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

Categories Laser Crystals
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
MOQ: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Model Number: CRYLINK-Cr Znse Crystal
Name: Cr:ZnSe
Crystal structure: Cubic
Poisson Ration: 0.28
Thickness/Diameter Tolerance: ±0.05mm
Orientation Tolerence: < 0.5°
Surface Flatness:
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Cr Znse Laser Material No Excited State Absorption Upper Level Conversion Broad


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.

Parameter

Material and Specifications
Crystal structureCubic
Poisson Ration0.28
Thickness/Diameter Tolerance±0.05mm
Orientation Tolerence< 0.5°
Surface Flatness</8@632nm
Wavefront Distortion</4@632nm
Surface Quality10-5(MIL-O-13830A)
Parallel30
Perpendicular15
Clear Aperture>90%
Chamfer<0.2×45°
Melting Point1520 C
Physical and Chemical Properties
Thermal Expansion Coeff. @20C1.5×10-6/C
Thermal Conductivity Coeff. @20C14 W/m/K
Specific Heat0.79 J/g K
Density5.27 g/cm
Durability Knoop Hardness112 kgf/mm
Mohs Hardness8.5
Young‘s Modulus67 GPa
Modulus of Rupture55 MPa
Orientation<111>or <100>
Optical and Spectral Properties
Laser Wavelengths2150 2600 nm
Emission Linewidth<1 nm
Emission Cross-section (@1064nm)9×10-19 cm
Intrinsic Loss @1064nm<0.003 cm-1
Refractive Index (n) @ 1650nm2.455
Thermal Optical Coeff. (dn/dT) @nm61×10-6/C

Features
  • 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

Applications

  • Surgery
  • Remote sensing
  • Dentistry
  • Free space communications
  • Military applications
Quality Cr Znse Laser Material No Excited State Absorption Upper Level Conversion Broad for sale
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