Changes

[[Image:Laser setup.jpg|center|300px|Figure 2: Image of Lambda Physik EMG 101 MSC excimer laser with cover removed.]]

[[Image:Laser setup.jpg|center|300px|Figure 2: Image of Lambda Physik EMG 101 MSC excimer laser with cover removed.]]

=== Gas Purification System ===

== Gas Purification System ==

[[Image:laser_cavity.png|center|thumb|300px| Figure 2: Illustration depicting the internals of a typical excimer laser.]]

[[Image:laser_cavity.png|center|thumb|300px| Figure 2: Illustration depicting the internals of a typical excimer laser.]]

Excimer lasers produce UV light via the spontaneous/stimulated emission of an excited complex comprised of a halogen, noble and buffer (fluorine, argon and helium respectively). These pseudo-molecules are created inside the laser cavity by large electric fields and live for only a short period of time before photo-emission occurs. Afterwards, the halogen and noble gases undergo a refractory period during which they cannot be re-excited. The internal mechanics of the Lambda Physik EMG 101 excimer laser provides a continuous flow of fresh lasing medium into the laser cavity via a circulating fan. Figure 3 depicts the cross section of a typical excimer laser and illustrates the path of the laser gas medium.

Excimer lasers produce UV light via the spontaneous/stimulated emission of an excited complex comprised of a halogen, noble and buffer (fluorine, argon and helium respectively). These pseudo-molecules are created inside the laser cavity by large electric fields and live for only a short period of time before photo-emission occurs. Afterwards, the halogen and noble gases undergo a refractory period during which they cannot be re-excited. The internal mechanics of the Lambda Physik EMG 101 excimer laser provides a continuous flow of fresh lasing medium into the laser cavity via a circulating fan. Figure 3 depicts the cross section of a typical excimer laser and illustrates the path of the laser gas medium.