LiTaO3
LiTaO3 is also a widely used E-O crystal, due to its optical, NLO and E-O properties similar to those of LiNbO3, but with a higher damage threshold.
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Crystal Structure: |
Trigonal , Space group R 3c , Point group 3m
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Cell Parameters: |
a = 5.154Å , c = 13.781Å
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Melting Point: |
1650°C
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Curie Temperature:
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607°C
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Mohs Hardness:
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5.5
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Density:
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7.46g/cm3
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Dielectric Constant:
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ε11/εo 51.7 |
ε33/εo 44.5
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Elastic Stiffness Coefficient:
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CE11 2.33 (x1011 N/m2) |
CE33 2.77 (x1011 N/m2)
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Piezoelectric Strain Constant:
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D22 2.4 (x10-11C/N)
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D33 0.8 (x10-11C/N)
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Transmission Range:
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400 – 4500nm
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Electro-Optical Coefficients:
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R33 = 30.4 pm/V
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Refractive Index @ 632.8nm:
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no = 2.176
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ne = 2.180
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