Calcite -CaCO3
Calcite (CaCO₃) is a naturally occurring birefringent crystal prized for its exceptional optical anisotropy and transparency in the UV to near-IR range. With a wide transmission range from ~250 nm to 2.5 µm, calcite is the preferred material for polarizing optics, beam displacers, waveplates, and prisms.
At Global Optics UK, we supply high-grade synthetic and natural calcite optics tailored for precision optical systems, with custom fabrication, polishing, and coating options available.
Explore Related Optical Materials:
Magnesium Fluoride (MgF₂)
Quartz (SiO₂)
Calcium Fluoride (CaF₂)
FAQ
FAQ
Q: What is Calcite used for in optics?
A: Calcite is primarily used for its strong birefringence in polarizing optics such as beam displacers, Glan–Thompson polarizers, and waveplates. It's ideal for applications requiring separation or control of light polarization.
Q: Why is Calcite valued in optical systems?
A: Its extreme birefringence and broad transmission range (from 250 nm to 2,500 nm) make Calcite excellent for polarization control in spectroscopy, microscopy, and laser optics.
Q: Is Calcite fragile or hygroscopic?
A: Yes, Calcite is relatively soft (Mohs ~3) and slightly hygroscopic. It should be handled with care and stored in low-humidity environments to prevent degradation or surface damage.
Q: Can Calcite be coated?
A: Absolutely. Anti-reflective (AR) coatings can be applied to Calcite optics to improve transmission and reduce surface reflections, especially when used in laser and imaging systems.
Q: Where can I download the Calcite technical datasheet?
A: You can download the full Calcite datasheet here.