Fluoride Optics

Barium Fluoride (BaF2) Window

Wideband BaF2 windows for UV through far-IR spectroscopy, detectors, and thermal imaging systems.

Fluoride Optics

Barium Fluoride (BaF2) Window

Wideband BaF2 windows for UV through far-IR spectroscopy, detectors, and thermal imaging systems.

Key specifications

Size Custom
Coating Uncoated / Broadband AR
Material BaF2
Parallelism Custom (e.g. < 3′)
Transmission Approx. 0.15–12.5 μm
  • Drawing-based OEM / ODM
  • Prototype to volume
  • ZYGO metrology available
Overview

Product description

Barium fluoride (BaF2) windows offer broad transmission from the deep ultraviolet into the far infrared, making them a versatile choice for spectrometers, detectors, and IR cameras.

YC Infrared Optics fabricates BaF2 windows to customer size and thickness, with optional broadband AR coatings. Soft fluoride crystals require controlled polishing and careful handling; our ultrasonic cleaning and clean packaging help preserve finished surfaces through shipment.

Typical inquiries specify clear aperture, thickness, parallelism, and coating. Prototype and production quantities are both supported.

Applications

Where this optic is used

Typical markets and systems that specify this component family.

Custom optics

Need a custom version of this optic?

Send wavelength, diameter, substrate, and coating requirements — we quote prototypes and production volumes.

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