Lithium Tantalate (LiTaO₃) Substrates 

Lithium Tantalate (LiTaO3) substrates are widely used in surface acoustic wave (SAW) devices, RF filters, electro-optic modulators, photonics, nonlinear optics, and terahertz (THz) research. UniversityWafer supplies high-quality LiTaO3 wafers and crystals in multiple orientations, sizes, thicknesses, and polishing options for university, government, and industrial research laboratories.

UW Logo

High-Quality Lithium Tantalate (LiTaO3) Crystals for Research

UniversityWafer supplies lithium tantalate (LiTaO3) substrates and crystals for research in surface acoustic wave (SAW) devices, RF filters, electro-optic modulators, nonlinear optics, photonics, and piezoelectric sensing. LiTaO3 wafers are available in a variety of sizes, crystal orientations, thicknesses, and polishing options to meet the needs of university, government, and industrial laboratories.

A postdoctoral researcher requested the following quote:

We are planning to buy a few lithium tantalate crystals for experiments. We typically use crystals measuring 10 × 10 × 0.5 mm with a <111> orientation. Our primary concerns are the surface roughness and surface quality. Could you provide specifications for your LiTaO3 crystals?

Typical Lithium Tantalate Crystal Specification

Item # Dimensions Orientation Thickness Polish Material Surface Roughness (Ra)
288365 10 × 10 mm <111> 0.5 mm DSP LiTaO3 <1 nm

Reference #288365 for specifications and pricing.

Get Your LiTaO3 Quote FAST! Or, Buy Online and Start Researching Today!





Custom LiTaO3 Wafer Specifications Available

If your application requires custom lithium tantalate wafers, we can supply substrates with various crystal orientations, dimensions, thicknesses, edge profiles, and polishing options. Whether your research involves SAW filters, electro-optic devices, THz generation, nonlinear optics, or integrated photonics, our technical team can recommend the appropriate LiTaO3 substrate for your project.

What Is Lithium Tantalate LiTaO3?

Lithium tantalate (LiTaO3) is a piezoelectric, ferroelectric, and electro-optic crystal used in RF devices, optics, photonics, sensing, and telecommunications. LiTaO3 substrates are especially important for surface acoustic wave (SAW) devices, RF filters, resonators, electro-optic modulators, nonlinear optics, and THz research.

Lithium tantalate LiTaO3 substrate used in surface acoustic wave SAW devices

Key Properties of Lithium Tantalate

  • Chemical formula: LiTaO3
  • Crystal structure: trigonal, non-centrosymmetric crystal
  • Material type: piezoelectric, ferroelectric, pyroelectric, and electro-optic crystal
  • Optical behavior: high refractive index, low optical loss, and broad transparency
  • Thermal stability: high Curie temperature and strong environmental stability
  • Common formats: wafers, diced crystals, polished substrates, and custom LiTaO3 pieces

LiTaO3 for SAW Devices and RF Filters

Lithium tantalate is widely used in SAW filters, RF resonators, oscillators, and telecommunications components. Its strong piezoelectric response allows electrical signals to be converted into acoustic waves on the crystal surface, making LiTaO3 a preferred substrate for mobile phones, wireless communication systems, sensors, and high-frequency electronics.

Optical and Photonic Applications

Because LiTaO3 has useful electro-optic and nonlinear optical properties, it is used in photonic devices, optical modulators, waveguides, frequency conversion, infrared optics, and integrated optical systems. It can also support applications involving THz generation and ultrafast optical research.

Common Lithium Tantalate Applications

  • Surface acoustic wave (SAW) filters and resonators
  • RF communication components
  • Electro-optic modulators and optical switches
  • Nonlinear optical frequency conversion
  • Infrared and THz generation
  • Integrated photonics and optical waveguides
  • Piezoelectric sensors and pressure sensors
  • Pyroelectric detectors and thermal sensing
  • Biomedical, acoustic, and sensing research

LiTaO3 vs. LiNbO3

Lithium tantalate is often compared with lithium niobate (LiNbO3) because both materials are used in piezoelectric, ferroelectric, electro-optic, and photonic devices. LiTaO3 is often selected when a researcher needs strong thermal stability, high chemical resistance, and reliable performance in SAW, RF, and optical systems.

Request Lithium Tantalate Substrates

UniversityWafer supplies lithium tantalate substrates in custom dimensions, orientations, thicknesses, and polish options. Please provide your required size, orientation, thickness, polish, surface roughness, and quantity for a fast LiTaO3 wafer quote.

Related Lithium Tantalate & Piezoelectric Substrates