BIBO　非線形 (NLO) 結晶

BiB₃O₆ (BIBO) Crystal

BIBO結晶は新しく開発された非線形光学結晶です。
実効非線形係数が大きく、高いダメージ閾値、不活発性を有しています。
その非線形係数は、LBOの3.5-4倍、BBOの1.5-2倍であり、青色レーザーを発生させる有望な二倍波結晶です。
CASTECH社では、BIBO単結晶の成長に "top-seeded solution growth"（TSSG）技術を用いています。

CASTECH offers
Chemical and Structural properties
Optical and Nonlinear Optical Properties
CASTECH's Warranty on BIBO Specifications
技術資料

CASTECH offers

* Strict quality control;
Large crystal size up to 10x10x15mm³;
AR-coating,mounts and repolishing services;
Fast delivery

Chemical and Structural properties

Crystal Structure	Monoclinic,Point group 2
Lattice Parameter	a=7.116Å, b=4.993Å, c=6.508Å, β=105.62° ,Z=2
Melting Point	726℃
Mohs Hardness	5-5.5
Density	5.033 g/cm³
Thermal Expansion coefficient	α_a=4.8x10^-5/K, α_b=4.4x10^-6/K, α_c=-2.69x10^-5/K

Optical and Nonlinear Optical Properties

Transparency Range	286-2500nm
Absorption Coefficient	<0.1%/cm at 1064nm
Physical Axis	X//b,(Z,a)=31.6°,(Y,c)=47.2°
SHG of 1064/532	Phase matching angle:168.9° from z axis in YZ plane Deff:3.0+/-0.1 pm/V Angular acceptance:2.32 arad-cm Walk-off angle :25.6 mrad temperature acceptance:2.17°C-cm

Sellmeier coefficients ※
	A	B	C	D
n₁	3.6545(4)	0.0511(2)	0.0371(3)	0.0226(1)
n₂	3.0740(3)	0.0323(1)	0.0316(3)	0.01337(6)
n₃	3.1685(3)	0.0373(1)	0.0346(3)	0.01750(8)

※

n_i²(λ)=A+B / (λ²-C)-Dλ² (λ in µm)

CASTECH's Warranty on BIBO Specifications

Dimension tolerance:
(W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm)
(L≥2.5mm)(W±0.1mm)x(H±0.1mm)x(L+0.1/-0.1mm) (L<2.5mm)
Clear aperture: central 90% of the diameter
Flatness: less than λ/8 @ 633nm
Transmitting wavefront distortion: less than λ/8 @ 633nm
Chamfer: ≤0.2mmx45°
Chip: ≤0.1mm
Scratch/Dig code: better than 10/ 5 to MIL-PRF-13830B
Parallelism: better than 20 arc seconds
Perpendicularity: ≤5 arc minutes
Angle tolerance: Δθ≤0.25°, ΔΦ≤0.25°
Damage threshold[GW/cm² ]: >0.3 for 1064nm, TEM₀₀, 10ns, 10HZ
Quality Warranty Period: one year under proper use.

技術資料

BiB₃O₆ (BIBO)　非線形(NLO)結晶

BIBO 非線形 (NLO) 結晶