Нелинейный Оптический Кристалл BBO

Категория: Other Optics Instruments >>>
Поставщик: Shandong,Yanggu,Constant,Crystal,Optic,Inc.

Цена:*

Количество:

Описание и отзывы

Трекер стоимости

Месяц	Минимальная цена	Макс. стоимость
Sep-19-2025	0.25 $*	0.87 $*
Aug-19-2025	0.56 $*	0.9 $*
Jul-19-2025	0.73 $*	0.2 $*
Jun-19-2025	0.82 $*	0.25 $*
May-19-2025	0.0 $*	0.57 $*
Apr-19-2025	0.21 $*	0.7 $*
Mar-19-2025	0.10 $*	0.91 $*
Feb-19-2025	0.32 $*	0.22 $*
Jan-19-2025	0.55 $*	0.44 $*

Характеристики

nonlinear optical crystal BBO Crystal

Product Description

High Temperature form BBO ( a -BaB 2 O 4 ) is a negative uniaxial crystal. It has large birefringence over the broad transparent range from 189 nm to 3500 nm. The physical, chemical, thermal and optical properties of a-BBO crystal are similar to those of b-BBO. However, the nonlinear optical properties of a-BBO crystal is vanished due to the centric symmetry with its crystal structure. It is not recommended to use for NLO processes.

a -BBO is an excellent crystal to replace Calcite, TiO 2 , and LiNbO 3 , etc. in Glan-Taylor and Glan-Thompson polarizers as well as walk-off beam splitters, especially for high power and UV polarizer, due to its unique UV transparency, good mechanical properties and high damage threshold.CNPHOTONICS manufactures and supplies Glan-Laser, Glan-Taylor, Glan-Thompson Polarizers and other beam displacers from high quality a -BBO crystals to replace Calcite in many applications, especially in UV and high power operations.

1. Basic Properties of a -BBO

Transparency Range: 189 - 3500 nm, See Transparency Curve	Transparency Curve of a -BBO
Density: 3.85 g/cm ³
Therm-Optic Coefficients: dn _o /dT = - 9.3 x 10 -6 / o C dn _e/dT = - 1 6 .6 x 10 -6 / o C
Damage Threshold at 1064 nm 1GW/cm 2 at 355 nm 500 MW/cm 2
Optical Homogeneity: Δn ≈ 10 ^-6 /cm
Mohs Hardness: 4.5
Hygroscopic Susceptibility:Low
Thermal Expansion Coefficients (in the range of 25 o C – 900 o C)	a a = 4 x 10 -6 /K a c = 36 x 10 -6 /K
Linear Absorption Coefficients: a <0.005 cm -1 from 300 nm to 2300 nm
Sellmeier equations: (λ in mm) : n_o²=2.7359+0.01878/(λ²-0.01822)-0.01354λ² n_e²=2.3753+0.01224/(λ²-0.01667)-0.01516λ²
Refractive Indices, Birefringence ( Δn = n _e - n _o) and Walk-off Angle at 45 o ( ρ): at 1.0642 u m n _e = 1.5379, n _o = 1.6579 Δn =-0.073282 r = -4.9532° at 0.5321 u m n _e = 1.5534, n_o = 1.6776 Δn =-0.075491 r = -5.0407° at 0.2660 u m n _e = 1.6114, n _o = 1.7617 Δn=-0. 089805 r = -5.6926°

Applications of a -BBO

Please refer to Polarizer for the applications of a-BBO

Specifications of a -BBO

Surface Quality	20/10 Scratch and Dig
Beam Deviation	<3 arc min.
Optical Axis Orientation	+/-0.5°
Flatness	λ/4 @ 632.8 nm
Transmission Wavefront Distortion	λ/2 @ 632.8 nm
AR-coating	R<0.5%