|
Calcium Fluoride (CaF2) Crystal Substrate, 25 × 25 × 0.80 mm, (111), double-side polished (10 Pieces per Box)
Product Type: Calcium fluoride crystal substrate
Research-grade laboratory product
|
|||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||
|
LABORATORY PROCUREMENT SUPPORT
For model selection, coating review, platform compatibility or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
|
|||||||||||||||||||||||||||||||||||||||||
|
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
|
What is the transmission performance of the CaF2 crystal substrate at different thicknesses?
The CaF2 substrate exhibits >94% transmission at 5 mm thickness and >85% transmission at 0.2 mm thickness across its 0.11–12.00 μm transmission range, as specified in the product data.
What are the key material properties of this CaF2 substrate for optical component design?
The substrate has a cubic crystal structure with a lattice constant of 5.462, a refractive index of 1.43382, a density of 3.18 g/cm³, and a thermal expansion coefficient of 18.85 × 10⁻⁶ /°C, making it suitable for infrared optical windows, prisms, and lenses.
What surface quality can be expected from the double-side polished CaF2 substrate?
The double-side polished substrate has a surface roughness specified as Ra < 5 Å, indicating a high-quality polish suitable for precision optical applications.
This 25×25×0.80 mm (111) CaF₂ substrate, double-side polished, offers a wide 0.11–12.00 μm transmission window and high transmission (>94% at 5 mm), making it suitable for IR optics; however, its low hardness and high thermal expansion require careful handling and thermal management.
Positive
- Broad IR transmission range: Covers 0.11–12.00 μm, enabling use in infrared windows, prisms, and lenses across UV to long-wave IR applications.
- High transmission and low surface roughness: Delivers >94% transmission at 5 mm thickness and Ra < 5 Å polish, minimizing optical loss and scatter for precision components.
Trade-offs
- Low hardness requires careful handling: With a Mohs hardness of 4, the crystal is relatively soft and susceptible to scratching; careful handling and cleaning are required to preserve optical quality.
- High thermal expansion coefficient: The thermal expansion coefficient of 18.85 × 10⁻⁶ /°C is elevated, which may cause dimensional changes under temperature variation and must be considered in mounting or thermal cycling designs.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
