SQ Fused Silica – Ultrapure Fused Silica - SQT - Get a price quote from Weinert Fiber Optics

Name: SQ Fused Silica – Ultrapure Fused Silica - SQT
Brand: Weinert Fiber Optics
Availability: InStock

Description

SQ Fused Silica is a premium material designed specifically for the production of optical and photonic devices. It caters to the demanding requirements of the fiber optic, semiconductor, and display technology markets. This material is renowned for its exceptional optical and physical properties, making it ideal for a wide range of optical and laser applications. The inclusion- and bubble-free nature of SQ Fused Silica ensures superior performance, offering outstanding laser durability, refractive index homogeneity, thermal stability, and resistance to temperature shocks.

One of the standout features of SQ Fused Silica is its low stress birefringence and minimal thermal expansion coefficients, which contribute to its reliability and precision in high-performance environments. The high OH and H2 content further enhances its appeal, providing extremely low fluorescence and remarkable stability under high-energy UV and laser radiation. These qualities make SQ Fused Silica an excellent choice for applications demanding high precision and durability.

LEONI offers SQ Fused Silica in various forms, including ingots and semifinished products such as round discs, rods, plates, and blocks. Available in five distinct quality grades, the material can be tailored to meet specific customer requirements through proven measuring and selection procedures. This flexibility ensures that the fused silica can be optimally used across a broad range of optical applications, from deep ultraviolet (DUV) to near-infrared (NIR) wavelengths.

The quality grades range from SQ0, a 3D material free of striae and striations, ideal for optical elements with complex light directions, to SQT, which is suited for technical applications. The excimer-grade fused silica, available in SQ1 or SQ0, offers excellent transmission at 193 nm and 248 nm, with the lowest levels of laser-induced fluorescence. This makes it particularly suitable for applications requiring high precision and minimal interference, such as excimer laser optics and beam guiding systems.

Specifications

Transmission At 193 Nm:	Excellent
Transmission At 248 Nm:	Excellent
Laser-Induced Fluorescence:	Lowest level
Path Length For Typical Transmission:	40 mm
Fluorescence Signal:	Very low level
Substrate Material:	Fused Silica

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Features

Exceptional Laser Durability: Designed to withstand high-energy UV and laser radiation, making it ideal for demanding optical applications.

Refractive Index Homogeneity: Ensures consistent optical performance across the entire material, crucial for precision applications.

Thermal Stability and Temperature Shock Resistance: Maintains integrity under extreme temperature variations, suitable for various industrial uses.

Low Stress Birefringence: Minimizes optical distortion, enhancing clarity and precision in optical devices.

Minimal Thermal Expansion: Features small thermal expansion coefficients, ensuring stability and reliability in temperature-sensitive environments.

Low Fluorescence: Due to high OH and H2 content, it exhibits extremely low fluorescence, enhancing performance under high-energy conditions.

Versatile Applications: Perfect for excimer laser optics, DUV and UV components, standard optics (VIS and NIR), UV rods, preforms, optical fibers, and more.

Available in Multiple Quality Grades: Offered in five quality grades (SQ0, SQ1, SQT, SQ0-E193/SQ1-E193, SQ0-E248/SQ1-E248) tailored to customer-specific needs and applications.

Customizable Formats: Available as ingots or semi-finished products (round disc, rod, plate, block, etc.), catering to diverse industrial requirements.

Applications

Excimer Laser Optics: Beam guiding systems and UV laser components.

DUV & UV Optics: Components for deep ultraviolet optical systems.

Standard VIS/NIR Optics: Lenses, wafers, discs, and optical fibers.

Lithography & Microlithography: Stepper lenses, photo mask blanks, and wafers.

Laser Fusion Systems: High-stability material under extreme laser conditions.

Technical Applications: Fused silica vessels, windows, and precision optical parts.

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United States

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Weinert Fiber Optics

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since 2015

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Frequently Asked Questions

What is the difference between the quality grades of SQ Fused Silica?

The quality grades of SQ Fused Silica differ in terms of homogeneity, absence of striae, and application type. SQ0 is recommended for optical elements with several light directions, SQ1 is suitable for optical elements such as lenses, discs, wafers, and rods/fibers, SQT is recommended for technical applications, and the excimer grades have excellent transmission at 193 nm/248 nm and the lowest level of laser-induced fluorescence.

What applications is SQ Fused Silica suitable for?

SQ Fused Silica is suitable for a range of applications, including excimer laser optics and beam guiding systems, DUV and UV optics components, standard optics (VIS and NIR), UV rods, preforms and optical fibers, laser fusion, technical applications, and lithography and microlithography applications.

What are the properties of SQ Fused Silica?

SQ Fused Silica is inclusion- and bubble-free and has excellent optical and physical properties, including laser durability, refractive index homogeneity, thermal stability and temperature shock resistance, low stress birefringence, and small thermal expansion coefficients.

What is SQ Fused Silica?

SQ Fused Silica is a high-quality material used for the production of optical and photonic devices in various markets, including fiber optic, semiconductor, and display technology.

What quality grades is SQ Fused Silica available in?

SQ Fused Silica is available in five quality grades, including SQ0, SQ1, SQT, SQ0-E193/SQ1-E193 (ArF excimer grade), and SQ0-E248/SQ1-E248 (KrF excimer grade).