OP8249 Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating

Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating Description

This high-quality silicon window, featuring a 50.8 mm diameter and 2.0 mm thickness, offers exceptional infrared transmission and durability across a broad spectral range. The AR coating significantly reduces reflection losses, delivering maximum throughput and minimal optical interference. Its low density and thermal stability make it a choice for demanding applications, while its mechanical strength ensures performance in challenging environments.

Engineered to meet rigorous quality standards, this precisely polished window is ideal for infrared spectroscopy, thermal imaging systems, and photonics instrumentation. Each piece undergoes strict inspection to maintain uniform surface quality and performance, guaranteeing consistent results and extended component longevity. For researchers, engineers, and system integrators seeking a versatile and durable optical solution, this silicon window provides a building block to optimise efficiency and output in advanced optical designs.

Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating Applications

Machined from high-purity silicon, these 2.0 mm thick windows with anti-reflective (AR) coatings offer exceptional infrared transmission, mechanical strength, and reliable thermal stability. Designed at a 50.8 mm diameter, they effectively minimise reflection while withstanding harsh operational environments. Their low density further reduces system weight, positioning them as a choice within industrial, research, and commercial settings that require dependable optical performance under challenging conditions.

1. Industrial Applications

·        Application 1: Use in high-power laser processing equipment, where the window’s thermal stability and AR coating reduce reflection and withstand intense heat.

·        Application 2: Integration in IR-based inspection systems requiring minimal absorption, ensuring accurate data collection under rigorous manufacturing conditions.

2. Research Applications

·        Application 1: Optical experiments in physics labs that need superior IR transmission for precise measurements and minimal scattering.

·        Application 2: Spectroscopic analysis setups, where the window’s low absorption improves detection sensitivity for chemical and material studies.

3. Commercial Applications

·        Application 1: Security monitoring devices leveraging IR imaging to capture clear footage in challenging light environments.

·        Application 2: Advanced consumer electronics incorporating distance sensing and remote control functions, benefiting from the window’s efficient IR pass-through.

Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating Packaging

Each Silicon Window (Si), measuring Dia. 50.8 mm x Thk. 2.0 mm with AR Coating, is placed in an anti-static bubble pouch, then sealed within a clean, cushioned container. For best results, store it in a cool, dry environment protected from direct sunlight. Anti-contamination measures include vacuum-sealed packaging with desiccant pouches. Customisation options are available, including customised labelling, tamper-evident seals, and specialised inserts for enhanced protection.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating FAQs

Q1: What are the key material properties of Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating?

A1: Silicon (Si) windows typically have a high refractive index, around 3.42 at 2.4 µm, allowing for superior IR transmission in the 1.2–7 µm range. They offer good thermal conductivity (approximately 149 W/m·K), low density (2.33 g/cm³), and a moderate thermal expansion coefficient (2.6×10⁻⁶ K⁻¹). The AR coating further enhances transmission and reduces reflection losses, making them ideal for infrared applications requiring minimal distortion and high optical clarity.

Q2: How should this product be handled and stored?

A2: These windows should be handled using clean, lint-free gloves to prevent skin oils or particulate contamination from affecting their optical surfaces. Use only soft, non-abrasive wipes and high-purity solvents for cleaning. During storage, place each window in a dedicated container or protective foam packaging to avoid scratches. Avoid exposing them to extreme temperature gradients or strong chemicals, which can degrade the coating quality or induce stress fractures.

Q3: Which quality standards and certifications apply to Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating?

A3: These windows usually comply with ISO 9001 manufacturing processes. They often also meet MIL-PRF-13830B regarding surface quality and scratch-dig specifications. The AR coating is typically tested per MIL-C-48497 or equivalent to ensure durability under environmental conditions. Many manufacturers also maintain RoHS compliance, verifying that materials and processes follow environmentally sound guidelines. Thorough documentation and testing protocols guarantee reliability, performance consistency, and adherence to global optical industry requirements.

Related Information

1. Manufacturing Process

Meticulous creation of the Silicon Window (Si) Dia. 50.8 mm x Thk. 2.0 mm, AR Coating begins with precision cutting of monocrystalline silicon wafers. The wafers are shaped to the exact diameter of 50.8 mm, maintaining uniform thickness through rigorous dimensional checks. Advanced polishing techniques are employed to achieve the ideal surface flatness before the antireflective (AR) coating is deposited. The AR coating process, often accomplished through electron-beam evaporation or plasma-enhanced chemical vapour deposition (PECVD), ensures consistent film thickness and adhesion for minimal light loss.

Consistency in temperature, humidity, and particulate control throughout fabrication is integral to producing flawless optics. Each wafer is methodically cleaned using solutions tailored to silicon substrates, ensuring the elimination of contaminants that could compromise performance. Fine-tuned coating parameters, such as deposition rate and chamber pressure, are carefully managed to produce a high-quality AR layer that optimises transmittance while preserving the silicon’s inherent mechanical strength.

2. Applications in Advanced Industries

Aerospace and defence sectors frequently incorporate these Silicon Windows in sophisticated sensing and targeting systems. By capitalising on the excellent infrared transmission capabilities of silicon, engineers can enhance the accuracy and reliability of optical devices designed for high-altitude or remote operations. The 50.8 mm diameter and 2.0 mm thickness strike a balance between a broad viewing aperture and structural integrity, catering to demanding aviation environments.

High-precision medical and semiconductor equipment also benefits from this Si window’s optical and thermal properties. Surgical lasers and imaging instruments rely on the AR coating to achieve optimal light throughput and minimise reflection. Meanwhile, semiconductor lithography processes require windows with minimal distortion, and the consistently high transmittance in infrared domains offered by this particular product is pivotal for nanoscale fabrication accuracy.