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YVO4 is an excellent birefringent crystal for fiber optics applications. As substrate, it can replace TiO2 for lower cost and better quality in many cases
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Crystal
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Birefr-ingence D=he-ho
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Refractive index h at l= 0.63m
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Thermooptical Coef.dh/dT 106/K
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Structure lattice constant (A)
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Melting point oC
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Density g/cm3
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Hard-ness (Moh)
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Thermal Coef. 10-6/K
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YVO4
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+ 0.222
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ho=1.9929
he=2.2154
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a: -8.5
c: -3.0
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Tetragonal a=7.12 c= 6.29
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1825
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4.22
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5
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a: 4.46
c: 11.37
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TiO2
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+ 0.282
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ho=2.583
he=2.865
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a: -0.72
c: -0.42
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Tetragonal a=4.593 c=2.958
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1840
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4.26
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7
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a: 7.14
c: 9.19
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U.S. Dept. of Commerce requires End User Certificate for exporting this product. For certain oversea customer , we may request you to fill the form of STATEMENT BY ULTIMATE CONSIGNEE AND PURCHASER
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