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  • Two precision-polished Germanium rhomboid prisms positioned symmetrically on a flat surface against a neutral gray background. The prisms have mirror-like surfaces and sharp, angled edges, designed for infrared beam steering or optical alignment applications.
  • A precision-fabricated Germanium prism with a matte-polished finish, featuring clean angular faces and sharp edges, positioned upright on a neutral gray background. The prism is designed for infrared optical applications such as beam steering or dispersion.
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Germanium (Ge) Prisms

Precision-engineered Germanium (Ge) rhomboid prisms designed for mid- and long-wave infrared (MWIR/LWIR) beam deviation, image displacement, and optical alignment in defense, aerospace, and sensing systems.

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Product description

G&H Germanium (Ge) rhomboid prisms are custom infrared optical components designed for beam steering, image displacement, and angular deviation in MWIR and LWIR systems (2–14 µm). The unique rhomboid geometry offers controlled lateral or angular beam translation, making them ideal for compact infrared imaging and laser systems where space constraints and precise optical path control are critical.

Manufactured from high-purity monocrystalline Germanium, these prisms offer excellent IR transmission, a high refractive index (~4.0 at 10.6 µm), and superior thermal and chemical stability. The internal reflection geometry of the rhomboid form provides design flexibility for altering beam paths without requiring additional folding optics.

Available with anti-reflective (AR) coatings for enhanced transmission or reflective/dichroic coatings for beam manipulation, Germanium rhomboid prisms are built for rugged operation in harsh environments, including aerospace and military platforms.

Key features

  • Excellent IR Transmission (2–14 µm): Optimized for MWIR and LWIR use
  • Rhomboid Geometry: Enables compact beam deviation and folded optical paths
  • High Refractive Index (~4.0 @ 10.6 µm): Ideal for sharp internal refraction and compact design
  • Customizable Coatings: AR, mirror, or partial reflective coatings available
  • Thermal and Environmental Stability: Operates in extreme environments
  • Precision Surface Finishing: Optical-grade polish and angular tolerance
  • Mechanical Ruggedness: Suitable for defense and aerospace applications
  • Custom Sizes and Angles: Manufactured to application-specific requirements

Applications

  • MWIR & LWIR infrared beam steering
  • Image displacement in IR optical systems
  • Folded-path IR imaging assemblies
  • Missile guidance and targeting optics
  • Infrared laser alignment and beam manipulation
  • Optical delay lines and interferometry
  • Compact optical subsystems in aerospace and defense

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