ELECTRO OPTICAL COMPONENTS, Inc.

ELECTRO OPTICAL COMPONENTS, Inc. is the North American distributor
of proven, unique and technologically advanced electro optical
components from top manufacturers worldwide.

 

Sapphire Windows / Substrates

Sapphire is an excellent material for windows and substrates requiring transmittance from UV to 6.0 microns. It is a tough, scratch resistant material that is excellent for abusive applications. It is available with AR coatings to improve its already excellent transmittance properties.

  • Transmission from 200nm up to 6 µm
  • Thickness from 0.3 to 10 mm
  • Dimensions up to 160 mm
    •
    Thermal properties:
    Coefficient of Expansion 5.3 (10°/K) // c axis @ 300 K
    4.5 (10°/K) ┴ c axis @ 300 K
    Max Usage Temperature   2000 °C
    Thermal conductivity 40 (W/m.K) @ 300 K
    4 (W/m.K) @ 1500 K
    Specific heat 750 (J/kg.K)
    Mechanical properties:
    Young Modulus  4.4 x 105 MPa @ 300 K
    Shear Modulus 400MPa @ 300 K
    Knoop Hardness  1.9 x 105 MPa
    Traction resistance 190 MPa @ 300 K
    Poisson constant 0.30
    Electrical properties:
    Di-electric constant  10.6 // c axis @ 300K; 106Hz
    8.6 c axis @ 300K; 10 6Hz
    Loss Coefficient < 103 @ 300K
    Di-electric Resistance 48 x 106V/m @ 60Hz
    Resisitivity 1016ohm-cm @300K
    1011ohm-cm @ 573K
    Optical properties:
    Transmission in the visible: excellent
    0.75...4.5μm: ≥ 85%
    0.25...0.4μm: 60%
    Refractive Index @ 0.5893μm 1.760 // c axis
    1.768 ┴ c axis  
    Puissance dispersivity (nf-nc) 0.011; λf = 0.4861μm
    λ     c = 0.6563μm
    Emissivity < 0.02 @ 1153K
    λ = 2.6 @ 3.7μm
    dn/dT 13 x 10-6K-1

     

     

     

     

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    ELECTRO OPTICAL COMPONENTS, Inc. is the exclusive North American  distributor for FEMTO, IFW Optronics GmbH, INNO-Spec GmbH, Laser Beam Products, LEYSOP, NOC, Frankfurt Laser Co., IMM Photonics GmbH, INTEX, Micro-Hybrid Electronics GmbH, SDS (Systems Development & Solutions), UralAlmazInvest, Oehler & Fischer AG and Wavelength Technology.