Crystal properties
Crystal Structure	Tetragonal(4m) 13oC<T<132oC
Cell parameter	a=3.99Å, c=4.04Å, (at 26 oC)
Melting Point	1891 oK
Density.	6.06 g/cm3 (at 26 oC)
Specific Heat	0.527 J/g • k (300°K)
Thermal conductivity	6 W/m • k (300°K)
Thermal expansion (10-6k-1)	15.7??a 6.2??c
Dielectric constant(?er)	?ea=3000 ?ec=800
Hardness (Mohs)	4.5
Growth Method	TSSG (Top Seeded Solution Growth)
Index of Refraction	515 nm	633 nm	800 nm
no	2.4912	2.4160	2.3681
ne	2.4247	2.3630	2.3235
Transmission wavelength	0.43 - 6.30 um
Electro Optic Coefficients.	rT13 = 8+ / -2 pm/V
	rT33 = 105-/+10 pm/V
	rT42 = 1300+ / -100 pm/V
Reflectivity of SPPC ( at 0 deg. cut )	50-70 % (Ce: BaTiO3) for lamda = 515 nm
	40-60 % (PureBaTiO3) for lamda = 515 nm
	50-80 % (Ce: BaTiO3) for lamda = 633 nm
	40-60 % (PureBaTiO3) for lamda = 633 nm
Two-wave mixing coupling constant.	10-40 cm-1
Absorption loss Lamda: a :	515 nm 0.285cm-1	633 nm 0.108cm-1	800 nm 0.033cm-1
Wavelength range for photo refractive effect	Undoped BTO	for visible
	Ce: BTO	480-780nm
	Rh: BTO	720-1060nm
Specifications
Standard Size	10x10, 10x5,	10x3, 5x5 mm
Thickness	0.5mm, 1.0mm
Polishing	one or two side polished
Bulk	5 x 5 x 5 mm	4 x 4 x 4 mm	3 x 3 x 3 mm
	0° or 45° cut, 2 - 6 faces polished
Orientation	<100>, <110>, <001>, <111>
Orientation accuracy	± 0.5°