Lithium Tantalate Thin Films (LTOI)

Lithium tantalate (LiTaO₃, or LT) is also called a "universal crystal", and has similar properties and structure to lithium niobate. Like lithium niobate, it has excellent electro-optic, nonlinear optical, piezoelectric, and pyroelectric properties. Due to these exceptional performances, it has wide-ranging applications, form facilitating high-speed optical communication, which forms the foundation of the internet, to their utilization in radiofrequency (RF) filtering within mobile devices, and from classical integrated optics to the realm of quantum optics, these versatile materials have profoundly reshaped our daily existence^[1]. Despite the decades of development, conventional LT devices (bulk LT) have found practical utility in many fields. However, the restricted refractive index contrast inherent in bulk LT has significantly limited the potential for devices founded upon this material. The emergence of LT single-crystal thin films has transformed this landscape. LT single-crystal thin film refers to the lithium tantalate thin films grown on insulator (such as silicon), so it is also known as LTOI. LTOI has strong electro-optic modulation, weak birefringence, wider transparent window, and stronger resistance to optical damage, among other characteristics. These exceptional properties make LTOI a promising material for a broad range of fields, such as integrated optics, pyroelectric detectors, optical waveguides, acoustic devices, etc. Moreover, It is worth mentioning that LTOI has higher preparation efficiency, lower difficulty, and lower cost compared to LNOI.

Alfa Chemistry: Quality Lithium Tantalate Thin Films (LTOI) Provider

In recent years, Alfa Chemistry has been committed to the research and development of multi-functional materials with excellent piezoelectric/ferroelectric, electro-optical and nonlinear optical properties, and lithium tantalate thin films (LTOI) is one of these materials. Today, we are capable of manufacturing and scaling production of LTOI products, and successfully applying them in multiple sectors.

Product Details

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Catalog	ACSEM-TFW002
Description	Our LTOI products maintain the physical properties of the bulk material with the lattice structure of single crystal. The top functional layer is lithium tantalate single crystal film, the isolation layer is silica, and the substrate is Si. (Isolation layers are optional.)
Top Functional Layer Thickness	300-900nm; 5-50 μm
Size	3/4/6 inch

Recommended Uses

Our products can be mainly used in the following fields:

All of our products are subject to rigorous quality assurance processes. Each batch undergoes a series of tests to ensure they meet the highest standards. Moreover, we guarantee consistency and reliability in our products, which are crucial for advanced applications in electronics and photonics.

Custom Fabrication Services

Our team of experienced engineers and technicians are committed to providing high-quality custom fabrication services for lithium tantalate thin films (LTOI), tailored to meet the unique needs of each customer. Whether you need special thicknesses, specific substrate materials, or tailored film properties, we work closely with our customers to develop customized solutions. Contact us today to discuss your project requirements and learn more about how we can help you achieve your goals.

Reference

1. Zhu Y. and Wan Q. Lithium niobate/lithium tantalate single-crystal thin films for post-moore era chip applications[J]. Moore and More, 2024, 1(1): 1-17.