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Lithium tantalate (LiTaO3 or LT) crystals can be used to make surface acoustic wave devices, thermoelectric detectors and electro-optical modulators. Lithium tantalate and lithium niobate crystals are multifunctional crystal materials with piezoelectric, ferroelectric, pyroelectric, acousto-optic and electro-optic properties. They are widely used in surface sound wave (SAW) devices, optical communications, laser and electronics industry.
OST Photonics offer a variety of sizes and thicknesses of SAW＆Optical grade Lithium Tantalate (LiTaO3 or LT) wafers, with wafer diameters ranging from 3 inch to 6 inch, the thickness can be customized according to your requirements (generally above 0.18 mm). The orientations can be X/Y/Z/Y36/Y42/Y48/X112 etc. Pyroelectric free black LiTaO3 wafers and Fe/Zn/MgO doped LiTaO3 wafers are also available. Contact Ost Photonics to learn more about the price and cost of lithium tantalate wafers!
Pyroelectric free black lithium tantalate wafers were prepared successfully by chemical reduction under a mixed atmosphere of CO2 and H2. Bulk conductivity and optical transmittance of the black lithium tantalate wafers were measured, and the results showed that the pyroelectric effect for the reduced wafers was almost eliminated and the transmittance decreased considerably. The reduction process did not change Curie temperatures or piezoelectric properties of lithium tantalate wafers, while neutralizing electrical charges even if the electrical potential occurs instantaneously.
Lithium tantalate wafer is a kind of material with wide application prospects. It has excellent electrochemical performance and thermal stability, so it is widely used in the battery field in lithium-ion batteries, solid electrolytes, and other aspects. Lithium tantalate wafers can also be used as an important component in optical devices, such as tunable lasers, fiber optic communication devices, etc.
In addition to applications in the energy and optical fields, lithium tantalate wafers are also widely used in sensor technology. Due to its high sensitivity and fast response characteristics, it can be used to manufacture various types of sensing devices such as gas sensors, humidity sensors, and temperature sensors.
In addition, in the field of microelectronics, lithium tantalate wafers also play an important role. It can be used as a storage medium or a key element in non-volatile random access memory (NVRAM) and has high data read and write speeds and long-term data retention capabilities.
In short, lithium tantalate wafers, with their excellent physical and chemical properties, show great potential in many fields. In the future, with scientific and technological progress and process improvement, it is believed that this material will be more widely and deeply applied, and bring revolutionary changes to related industries.
The specification of the lithium tantalate wafer refers to the specific requirements of the wafer in terms of size, shape, and performance. As an important functional material, lithium tantalate wafers are widely used in electronic devices, optical devices, and energy storage fields.
First, regarding size specifications, parameters such as diameter, thickness, and flatness are included for lithium tantalate wafers. The diameter is typically determined by specific application needs and can range from a few millimeters to tens of millimeters. The thickness depends on the structural design and process requirements of the device being prepared. Flatness imposes strict surface quality requirements to ensure desired effects during subsequent processing stages.
Secondly, concerning shape specifications, lithium tantalate wafers usually exhibit circular or other special shapes achieved through cutting or wafer technology while meeting accuracy and consistency requirements.
Finally, performance specifications encompass various aspects including physical properties (e.g., density, hardness), chemical properties (e.g., stability and corrosion resistance), and electrical properties (e.g., dielectric constant conductivity). These parameters ensure product quality and reliability based on specific application needs.
SAW ＆ Optical Grade Lithium Tantalate Wafers of OST Photonics
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The difference lies in the raw material and the rate of growth. Optical grade LiTaO3 has a better raw material and a slower growth rate than SAW grade LiTaO3.
Lithium tantalate wafers exhibit a distinctive trigonal crystal structure, which is a key factor in their widespread use in the photonics industry. This crystal structure provides lithium tantalate wafers with exceptional electro-optic and piezoelectric properties, making them ideal for a variety of applications, including modulators and sensors. The unique properties of lithium tantalate wafers, stemming from their crystal structure, enable precise control and manipulation of light, which is crucial for advanced optical systems.
Lithium tantalate wafers are known for their wide transparency range, extending from the ultraviolet (UV) to the mid-infrared (MIR) spectrum. This broad transparency makes lithium tantalate wafers highly versatile in optical applications, including laser frequency conversion and electro-optic modulation. The exceptional optical transparency of lithium tantalate wafers, combined with their strong electro-optic properties, positions them as a material of choice for fabricating devices that require high optical clarity and performance. Consequently, lithium tantalate wafers are integral to the development of advanced photonic and optoelectronic systems, leveraging their transparency for innovative applications.
