Prolog Optics supplies optical elements out of Sapphire material for many applications.
According to each application we determine the required growth method which influence material quality and consequently material cost. Sapphire is a preferable material in many cases due to its superior mechanical, optical, chemical and thermal characteristics.
Sapphire has an extremely high surface hardness and thus can be scratched by only few substances other than itself, like diamond and boron nitride. It is chemically inert which means it is not readily reactive with other chemicals therefore sapphire surfaces can be cleaned up with impunity. Optically, sapphire exhibits high internal transmittance from the vacuum UV up to the Mid IR.
Sapphire windows are mechanically strong and thus can be made much thinner than other glass material what brings absorption to minimum. Sapphire has high thermal conductivity and high thermal stability what makes it the chosen material in many field and high power applications.
Sapphire is a single crystal aluminum oxide (Al2O3). It has hexagonal crystalline structure. Sapphire exhibits birefringence, which means it has different index of refraction in orthogonal directions.
Prolog Optics welcomes you to send us your specification/drawing for sapphire windows and lenses. Our engineers will find for you the most cost-effective solution to your specific need.