Our resonator gases are mixed in accordance with the laser manufactures specifications and often exceed user requirements.

Typically the laser resonator gas is a mixture of high purity helium, nitrogen and carbon dioxide.

Carbon dioxide is the active gas in the mixture and is instrumental in generating the laser light itself. The radiation is created by transitions between different vibrational energy levels within the carbon dioxide molecule.

The helium portion helps to remove carbon dioxide molecules from the lower transition level by speeding up the relaxations process and due to its thermal properties, helps to conduct heat away from the electric discharge. Helium also assists in reaching very high laser power.

The nitrogen gas portion, is easily excited to its first transitional vibration state, by using an electrical discharge, which has almost the same energy as the upper laser level of the carbon dioxide. Collisions between nitrogen and carbon dioxide molecules transfer the vibrational energy easily making it more efficient to have pure nitrogen gas in the mixture.

Our laser gas mixtures are simple to order and identify as they are named after the proportion/concentration of helium contained within that particular mixture.