Lithium Tantalate (LiTaO₃) Crystal & Wafer, X/Y/Z Cut LT Substrates

Lithium Tantalate (LiTaO₃), commonly abbreviated as LT, is a ferroelectric single crystal with excellent piezoelectric, electro-optic, pyroelectric, and nonlinear optical properties. It is widely used in RF and acoustic devices, infrared detection, photonics, optical modulation, and nonlinear optical applications.

Lithium tantalate crystals and wafers are commonly supplied in X-cut, Y-cut, Z-cut, and rotated Y-cut orientations to meet different acoustic, optical, and device requirements. Standard wafer sizes and custom dimensions can be provided with single-side polished (SSP), double-side polished (DSP), or application-specific surface finishes.

Compared with lithium niobate (LiNbO₃), lithium tantalate offers excellent thermal stability and is widely used in applications where temperature performance, acoustic behavior, and pyroelectric response are important.

AMO Scientific can provide LiTaO₃ crystals, wafers, and custom substrates for research, prototyping, photonics, RF, SAW, sensing, and OEM applications.

Applications

Lithium tantalate crystals and wafers are commonly used in:

• SAW filters and acoustic wave devices
• RF front-end components
• BAW and resonator applications
• Piezoelectric sensors and transducers
• Pyroelectric infrared detectors
• Optical modulators
• Electro-optic devices
• Nonlinear optical frequency conversion
• Photonic integrated devices
• Laser and optical systems
• Thin-film deposition substrates
• Research and material science
• LTOI-related photonics development

Key Features

• Strong piezoelectric properties
• Good electro-optic performance
• Strong pyroelectric response
• Nonlinear optical capability
• Good thermal stability
• Available in multiple crystal orientations
• SSP and DSP surface finishes available
• Custom dimensions and thicknesses
• Suitable for RF, optical, and sensing applications
• Custom polishing and edge treatment available

Specifications