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MgO Substrate
April 27, 2021
SrTiO3 Substrate
April 27, 2021

BaTiO3 Substrate

Advantage

1.Excellent photorefractive properties

2.High reflectivity of self-pumped phase conjugation

 

Category:
Description
  • BaTiO3 single crystals have excellent photorefractive properties, high reflectivity of self-pumped phase conjugation and two-wave mixing (optical zoom) efficiency in optical information storage with huge potential applications, which is also an important substrate materials.

     

    Properties:

     

    Crystal
    Structure

    Tetragonal ( 4m)
    : 9
    < T < 130.5 

    a=3.99A, c=
    4.04A ,

    Growth Method

    Top Seeded
    Solution Growth

    Melting Point

    1600

    Densityg/cm3

    6.02

    Dielectric Constants

    ea =
    3700, e
    c = 135 (unclamped)

    ea =
    2400, e
     c = 60 (clamped)

    Index of
    Refraction

    515 nm 633 nm
    800 nm

    no 2.4921
    2.4160 2.3681

    ne 2.4247
    2.3630 2.3235

    Transmission Wavelength

    0.45 ~ 6.30 mm

    Electro Optic
    Coefficients

    rT 13 = 11.7
    ?1.9 pm/V r
    T 33 =112 ?10 pm/V

    rT 42= 1920 ?180 pm/V

    Reflectivity of
    SPPC

    ( at 0 deg. cut
    )

    50 – 70 % ( max.
    77% ) for l = 515 nm

    50 – 80 % ( max:
    86.8%) for l = 633 nm

    Two-wave Mixing Coupling
    Constant

    10 -40 cm-1

    Absorption Loss

    l: 515 nm 633 nm
    800 nm

    a: 3.392cm-1 0.268cm-1 0.005cm-1

     

     

 

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