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Brand Name : Crystro
Model Number : CR220129-01
Certification : SGS/COC
Place of Origin : China
MOQ : 1pc
Price : USD 20~200/pc
Payment Terms : T/T, Western Union, MoneyGram, Paypal
Supply Ability : 20000pcs per month
Delivery Time : 4-5 weeks
Packaging Details : Transparent clean box
Material : Pyroelectric Lithium Tantalate Detector Material LiTaO3 Single Crystal
Crystal Sturucture : Trigonal,a = 5.154, c = 13.784A
Density : 7.45g/cm3
Absorption edge : 270nm
Refractive Indices : no=2.176,ne=2.180(at 0.633 µm) no=2.131,ne=2.134(at 1.2 µm)
Orientation : X-112°Y,36°Y,42°Y±0.5
Diameter : up to 6inch
Origin : China
Pyroelectric Lithium Tantalate Detector Material LiTaO3 Single Crystal
LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. CRYSTRO supplies high quality LiTaO3 boules,ingots and wafers with the following specifications for standard applications,diameter upon to 6 inch. We can also offer other specifications upon request.
Application:Lithium tantalate (LT) is used as SAW device which screens electromagnetic waves and only picks up specific frequencies. SAW device is used in mobile communication devices, including auto mobiles and TV and VTR tuners.
It's also a Pyroelectric lithium tantalate detector elements can be used in Infrared detectors ,Thermal infrared emitters.
.Crystro's LiTaO3 crystal is grown by Czochralski method.Max diameter reach 4inch,it's now the biggest size in this filed,we can custom size and specs ,rougness<0.5nm.
Crystro provides:
Basic Properties of LiTaO3:
Crystal Structure | Trigonal, Space group R3c, Point group 3m |
Cell Parameters | a=5.154Å,c=13.781Å |
Melting Point | 1650℃ |
Curie Temperature | 607℃ |
Mohs Hardness | 5.5 |
Density | 7.46g/cm3 |
Dielectric Constants | ε11/ε0:51.7 |
ε33/ε0:44.5 | |
Elastic Stiffness Coefficients | CE11:2.33(×1011N/m2) |
CE33:2.77(×1011N/m2) | |
Piezoelectric Strain Constants | d22:2.4(×10-11C/N) |
d33:0.8(×10-11C/N) | |
Transmission range | 400-4500nm |
Electro-optical coefficients | r33=30.4pm/V |
Refractive index at 632.8nm | no=2.176,ne=2.180 |
Typical Specifications:
Type | Boule | Wafer | ||
Specifications | ||||
Diameter | Φ3″ | Φ4″ | Φ3″ | Φ4″ |
Length or Thickness | ≤100mm | ≤50mm | 0.35-0.5mm | |
Orientation | 127.86°Y,64°Y,135°Y,X,Y,Z,and other cut | |||
Ref. Flat Orientation | X,Y | |||
Ref. Flat Length | 22±2mm | 2mm | 22±2mm | 32±2mm |
Front Side Polishing | Mirror polished 5-15Å | |||
Back Side Lapping | 0.3-1.0μm | |||
Flatness(μm) | ≤15 | |||
Bow(μm) | ≤25 |
Properties | LiTaO3(LT) |
Type of Material | Single Crystal |
Crystal Structure | Trigonal,a = 5.154, c = 13.784Å |
Melting Point | 1650℃ |
Curie Temperature | 607℃ |
Transmission Range | 400 – 5000 nm |
Absorption edge | 270nm |
Absorption loss | < 0.15 %/cm @ 1064 nm |
Refractive Index | no=2.176,ne=2.180(at 0.633 µm) |
no=2.131,ne=2.134(at 1.2 µm) | |
Density | 7.45g/cm3 |
Thermal Conductivity | 8.78x 10-7 m2/sec |
Optical homogeneity | ~10-5 |
Hardness (Mohs) | 5 |
Elastic Coefficient | CE11 2.33(X 1011 N/m2) |
CE33 2.77(X 1011 N/m2) | |
Dielectric Constant | ε11/ε0 52.7 |
ε33/ε0 44.5 | |
Solubility in Water | insoluble in water |
NLO Coefficients | d33 = 13.8 pm/V |
d22= 2.4 pm/V | |
d11= 0.85 pm/V | |
Electro-Optic Coefficients | r31 =8.4 pm/V, @633nm |
r22 =20 pm/V, @633nm | |
r33 =30.5 pm/V, @633nm | |
Damage Threshold | 2 MW/cm2@532nm |
Standard Diameter | dia150x50mm |
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Lithium Tantalate Detector Material LiTaO3 Single Crystal Pyroelectric Images |