Glossary of Laser Terms-C

Glossary of Laser Terms-C

Carcinogen

An agent potentially capable of causing cancer.

Carbon Dioxide

Molecule used as a laser medium. Emits far infared energy at 10,600 nm (10.6 µm).

Closed Installation

Any location where lasers are used which will be closed to unprotected personnel during laser operation.

CO2 Laser

A widely used laser in which the primary lasing medium is carbon dioxide gas. The output wavelength is 10.6 µm (10600 nm) in the far infrared spectrum. It can be operated in either CW or pulsed.

 Cornea

The transparent outer coat of the human eye, covering the iris and the crystalline lens. The cornea is the main refracting element of the eye.

  Coherence

A term describing light as waves which are in phase in both time and space. Monochromaticity and low divergence are two properties of coherent light.

   Collimated Light

Light rays that are parallel. Collimated light is emitted by many lasers. Diverging light may be collimated by a lens or other device.

   Collimation  

Ability of the laser beam to not spread significantly (low divergence) with distance.

    Continuous Mode  

The duration of laser exposure is controlled by the user (by foot or hand switch).

    Continuous Wave (CW)  

Constant, steady-state delivery of laser power.

    Controlled Area    

Any locale where the activity of those within are subject to control and supervision for the purpose of laser radiation hazard protection.