What is C cut sapphire?

UQG Optics ‘C’ cut axis Sapphire windows and plates are cut to the optical axis perpendicular to the plane of the crystal, this is known as ‘C’ cut, ‘Z’ cut or 0° plane cut Sapphire. This material is better suited for highly optical and mechanical applications due to random being moderately birefringent.

Does sapphire have birefringence?

Sapphire is also “birefringent” which is an optical refractive property that offsets wave transmission up to 0.8% at right angles to the optic axis. Birefringence is eliminated along the optic or C-axis of the crystal.

What is the crystal structure of sapphire?

Hexagonal crystal systemSapphire / Crystal system

What is a plane sapphire?

What Is A-Plane Sapphire? A-plane sapphire is the most popular type of sapphire. It is used for optical devices and is resistant to high-temperature. Its low resistance and high thermal conductivity make it the preferred material for semiconductors. A-plane sapphire is also a more suitable material for electronics.

What Colour is a sapphire stone?

Sapphire is generally known as a blue gemstone but surprisingly it comes in a wide range of colors and quality variations. In general, the more intense and uniform the color is, the more valuable the stone. Sapphires that are not blue are known as fancy sapphires, and may be any color—except red (which is a ruby).

What is birefringence in gemstone?

An Introduction to Gemology Gems that polarize light and split it into two (or three) different directions are said to be doubly refractive. Birefringence is a measure of a gem’s double refraction. It serves as one of the principal ways gemologists can identify gems.

What characteristics do gemstones with birefringence exhibit?

Gemstones that are birefringent exhibit the following visual effects:

  • Pleochroism – This is a color effect that means 2-3 colors are displayed.
  • Double Vision – A fascinating effect of birefringence occurs on some gemstones which emit a double vision feature.

What are the properties of sapphire?

Sapphire Metaphysical Properties Sapphire is said to be the wisdom stone, stimulating concentration, enhancing creativity and promoting purity and depth of thought. It is believed to focus and calm the mind as well as remove unwanted thoughts, depression and mental tension.

How is birefringence calculated?

Birefringence can be determined as it is the difference in the optical path (OPD) between the O- and E-rays, also known as the retardation, divided by the thickness t of the polymer part.