Name: TeO2 (Tellurium Dioxide) - Acousto-optic Crystal - Customized Products
SKU: 6827
Price: 100 USD
Availability: InStock

TeO2 (Tellurium Dioxide) – Acousto-optic Crystal – Customized Products

TeO2 crystal, also known as tellurium dioxide, is a kind of acousto-optic crystal material with high-quality factors and excellent performance.

TeO2 crystal has the advantages of fast response, low driving power, and high diffraction efficiency, stable and reliable performance. It is widely used in various types of acousto-optic devices, such as:
Acousto-optic deflectors
Acousto-optic modulators
Acousto-optic harmonizers
Acousto-optic filters
Tunable filters

Therefore, TeO2 crystals are a promising material for acousto-optic devices, especially for acousto-optic modulators and acousto-optic harmonizers. They have a wide range of applications in optical computing, optical communication, and optical microscopic imaging.

Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.

Features of TeO2 Crystal:
High refractive index
Low sound attenuation
High Quality Factor
High transparency to visible light
Excellent sound and light characteristics

Physical and Chemical Properties

Attribute	Numerical
Chemical Formula	TeO₂
Molar Mass	159.60 g/mol
Color	Colorless,
Density	5.99 ± 0.03 /cm³
Melting Point	733°C
Hardness	3-4 Mohs Hardness Tester
Thermal Expansion	10^-6 К^-1: α₁₁= 17.7; α₂₂ = 17.7; α₃₃= 5.5
Symmetry	Tetragonal Crystal System, 422 (D₄)
Lattice Constant	a = 4.8122 Å; c = 7.6157 Å
Transmittance	>70% @ 633nm
Launch Range	0.33 ~ 5.0 μm
Dielectric Constant	ε₁₁ = 22.9; ε₃₃ = 24.7
Elastic Constants·10^-10 N/m²	c₁₁ = 5.57; c₃₃ = 10.58; c₄₄ = 2.65; c₆₆ = 6.59; c₁₂ = 5.12; c₁₃ = 2.18
Photoelastic Coefficient@0.6328 μm	p₁₁ = 0.0074; p₁₂ = 0.187; p₁₃ = 0.340; p₃₁ = 0.0905; p₃₃ = 0.240; p₄₄ = -0.17; p₆₆ = -0.0463

Refractive Index

λ, μm	n_o	n_e	Δn = n_e– n_o
0.4047	2.4315	2.6167	0.1852
0.4358	2.3834	2.5583	0.1749
0.4678	2.3478	2.5164	0.1686
0.48	2.3366	2.5036	0.167
0.5086	2.315	2.4779	0.1629
0.5461	2.2931	2.452	0.1589
0.5893	2.2738	2.4295	0.1557
0.6328	2.2597	2.4119	0.1522
0.6438	2.2562	2.4086	0.1524
0.69	2.245	2.3955	0.1505
0.8	2.226	2.373	0.147
1	2.208	2.352	0.144

Optical Activity, Along [001]

λ, μm	p, deg/mm	λ, μm	p, deg/mm
0.3698	587.1	0.5893	104.9
0.3783	520.6	0.6328	86.9
0.3917	437.4	0.7	67.4
0.4152	337.6	0.8	48.5
0.4382	271	0.9	37.4
0.463	221.1	1	29.5
0.4995	171.2	1.1	23.8
0.53	143.4

Acousto-optic Properties: λ=0.6328μm

N_sound	U_sound	V_sound10³ м/с	N_light	E_light	M₁ 10^-7сm² · с/г	M₂10^-18с³/г
[100]	[100]	2.98	[010]	[100]	0.097	0.048
[100]	[100]	–	[010]	[001]	22.9	10.6
[001]	[001]	4.26	[010]	[100]	142	34.5
[001]	[001]	–	[010]	[001]	113	25.6
[100]	[010]	3.04	[001]	optional	3.7	1.76
[110]	[110]	4.21	[-110]	[110]	323	0.802
[110]	[110]	–	[-110]	[001]	16.2	3.77
[101]	[101]	3.64	[-101]	[010]	101	33.4
[010]	[010]	2.98	[-101]	[101]	42.6	20.4
[110]	[-110]	0.617	[001]	optional	68.6	793
[101]	[-101]	2.08	[010]	[100]	76.4	77

TeO2 Modulator Characteristics

Main Features of АОM	TeO₂Typical Values for Modulators
Optical Wavelength Range	514nm, 633nm, 1064nm, 1330nm
Optical Aperture	0.3 mm – 3 mm
Working Mode	Longitudinal, axis(001)
Light Rise Time	The beam diameter is 9-200 nsec
Beam Separation（633 nm）	10-30 mrad
Diffraction Efficiency	70-85 %
Modulation Frequency（-3db）	6-50 MHz

TeO2 Deflector Characteristics

Main Features of АОD	TeO₂Typical Values of Deflectors
Optical Wavelength Range	540nm-530nm, 630nm-850nm, 700nm-1100nm, 1064nm, 1330nm
Optical Aperture	1 mm – 10 mm
Working Mode	Shear wave, axis 3-15 degrees（110）
Center Frequency	20- 200 MHz
Bandwidth	20-100 MHz
Diffraction Efficiency	60-95%
Time Aperture	1-15 μs
Resolution（T.BW products）	200-2000
Light Rise Time	The beam diameter is 9-200 nsec
Angle	10-100 mrad
ΔDeflection Angle	5-50 mrad
RF input power	0,1- 2 Wt

TeO2 Tunable Filter Characteristics

The Main Characteristics of a Spectacle OTF	TeO₂ Typical value of AOTF
Tuning Range	450-750nm, 900-1200nm, 1200-2500nm, 2500-5000nm
Bandwidth	0.5 nm – 15 nm
Working Mode	Slow shear, non-collinear propagation
Corner Hole	2-10
Optical Aperture	3×3 mm – 30×30 mm
Diffraction Efficiency	70-85 %
RF Power	1-10 Wt

Spectrum

Category: TeO2 Crystal Tags: Acousto-optic Crystal, TeO2 Crystal