High-Transmission Visible Diamond Windows (2D-LIPSS Nanostructured Surface)

High-Transmission Visible Diamond Windows (2D-LIPSS Nanostructured Surface)

Product Overview

Semixicon / Diasemi introduces a next-generation high-transmission diamond optical window engineered with via 2D-LIPSS (Laser-Induced Periodic Surface Structures). Fabricated via advanced femtosecond laser processing with beam-shaping technology, this solution delivers film-free anti-reflection performance in the visible spectrum while maintaining the intrinsic durability of diamond.

Designed for extreme-environment photonics, this product eliminates the reliability limitations of conventional AR coatings, enabling stable, long-term operation in harsh thermal, mechanical, and corrosive conditions.

Key Features & Advantages

High Visible-Light Transmittance

• >80% average transmission (450–700 nm)

• ~13% improvement over uncoated diamond

• Enhanced optical throughput for imaging, sensing, and laser systems

Coating-Free Anti-Reflection Design

• No dielectric or multilayer AR coatings required

• Eliminates:

• Delamination risk

• Thermal expansion mismatch

• Environmental degradation

Ensures long-term optical stability in harsh conditions

2D Nanostructure Advantage

• Isotropic 2D subwavelength surface structures

• Superior to conventional 1D structures:

• Improved light coupling efficiency

• Polarization-independent performance

• Reduced surface reflection across wide angles

Extreme Environment Compatibility

Leveraging diamond’s intrinsic properties:

• Ultra-high hardness (Mohs 10)

• Ultra high thermal conductivity

• Chemical inertness

Ideal for:

• High  pressure environments

• Sand, dust, and abrasion exposure

• Marine / deep-sea corrosion conditions

Advanced Manufacturing Technology

• Femtosecond laser orthogonal scanning

• Proprietary elliptical beam shaping

• Up to ~40× higher processing efficiency

• High uniformity and scalable surface texturing

Technical Specifications (Typical)

Applications

High-Power Laser Systems

• Optical windows for high էնergy density environments

• Improved transmission with zero coating failure risk

Defense & Aerospace Optics

• Ruggedized windows for airborne and space platforms

Deep-Sea Detection Systems

• Seawater environments

• Stable optical performance under high pressure

Advanced Imaging & Photonics

• Visible-band sensors

• Quantum optics and precision detection systems

Competitive Positioning

Value Proposition

Semixicon / Diasemi’s 2D-LIPSS diamond windows provide a breakthrough combination of optical performance and durability, offering:

• Higher transmission without coatings

• Reduced lifecycle cost

• Superior reliability in extreme conditions

Customization & Integration

We support:

• Custom diameters and thicknesses

• Double-sided structuring options

• Integration into optical assemblies

• Process optimization for specific wavelength bands