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LiTaO3

LiTaO3

Lithium Tantalate (LT, LiTaO3) has unique properties, which as a material finds uses in Electro-Optical and Acousto-Optical applications. These can be : surface acoustic wave devices, bulk acoustic wave devices, piezo-electric transducers and piezoelectric sensors.

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Product Details

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1.Good optical NLO and E-O properties

2.High optical damage threshold

3.Wide transparency range


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 Piezoelectric transducers (PET) used to

image.png  ●Piezoelectric force transducer

   ●Piezoelectric acceleration transducer
   ●Piezoelectric glass breakage alarm

   ●Metal working cutting force measurement

Other applications:

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Passive infrared sensors(PES)


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 Motion detectors


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 Pyroelectric detector

》More information about LiTaO3: Wikipedia


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Low bulk absorption

High Purity raw materials >99.999%

Low bulk absorption

Advanced raw material pre-sintering process

Advanced raw material pre-sintering process

No poly-crystalline defects


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① Full automatic controlled crystal growth furnace High yield

② Advanced CZ Method Crystalline Process Stable quality control

③ Systematic batch packing classification

》More information about Equipments


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Maximum boule size >dia50mm

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High doping concentration gradient homogeneity , typical value<0.02cm-1/inch

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Li1+,Ta5+concentration increased by post-annealing process,high Laser gain effect

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No bubbles, scatering point and inclusions in crystals

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No grain bound


》More information about Crystal Growth


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High level dust-free clean room 

(1000) grade)


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2-sides polishing equipments


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AFM


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Interferometer

Advance CMP process, Ra<0.4nm                                                                      

Surface quality: >10/5                                                

Flatness:< λ/8@632nm                                                  

》More information about Polishing


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Melting Point1650° C
Crystal SystemTrigonal
Point Group3m
Crystal Density7.465 x 103 kg / m3
Curie Temperature (Tc)603.5 ± 5.5°C
Heat Capacity (Cp)100 J / k.mol


Dielectric Constants                                       

53.6(T11)
43.4(T33)





Elastic Constants

2.331 x 1011 N / m(CE11)
0.464(CE12)
0.852(CE13)
-0.161(CE14)
2.761(CE33)
1.029(CE44)




Piezoelectric Strain Constants

2.63 C / m2(e15)
1.84(e22)
-0.11(e31)
1.93(e33)

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                                                                       Nonlinear Optical Coefficients at 1-06 μ m
d22 / l d36KDP l4.4
d31 / l d36KDP l-2.7
d33 / l d36KDP l-4.1
                                                        Electro-Optic Coefficients r(10-12 mV-1) at 632.8 nm
rT138.4
rS137
rT22-rS221
rT3330.5rS3330.3
rT51-rS5120
                                                                       Refractive Index at 632.8 nm (*d31=d15)
no2.1787
ne2.1821
                                                                                   no: TE mode ne: TM mode

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Selective Piezoelectric Coupling Factors & Frequency
Plate OrientationWave TypeCoupling FactorResonance Frequency
Constant (MHz-mm)
XS0.441.906
ZE0.193.04
36° Y - CutQE-
-
163° Y - CutQS--
E = extensional S = shear QE = quasi - extensional QS = quasi - shear


Surface Acoustic Wave Properties

Description

Propagation

Design

Surface Wave

Velocity (m/s)

Coupling Coefficient k² (%)

Group Delay Time Temp Coefficient (ppm/°C)        
36 ° Y - CutX - AxisSSBW4160
5
28 ~ 32
42° Y - CutX - AxisSSBW4022
7.6
40
X - Cut112.2 Y DirectionSAW3290
0.75
18


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History: 

Metalaser has engaged in crystal industry over 20 years which is one section    of Shanghai Daheng Optics and Fine Mechanics Co., Ltd held by SIOM. 

Team:     

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More than 60% of our employees are physics or material scientists from NIALT and SIOM.





》More information about our company

Alibaba Transaction History:

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We have set up a mall on the Alibaba, and there are many transaction record from all over the world.    

》Our Alibaba trade website

           

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Delivery in 3~4weeks

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Free samples can be provided

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Free ex change goods or sales return for once 

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Provides re-polished and coating

services (Coating damage only)

Note:Postage paid by the buyer

》More information about Service



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