Editorial Feature

Argon Fluoride (ArF) Excimer Lasers - Properties and Applications

The argon fluoride (ArF) laser is a type of excimer laser. Excimer lasers (short for "excited dimer") consist of a mixture of noble gas such as xenon, krypton or argon and a halogen gas such as chlorine or fluorine, which when subjected to high pressure and electrical stimulation emit stimulated ultraviolet (UV) light in the range of 193 nm.

During high-voltage electric discharge, an excimer gain medium is pumped with current pulses to form excimers. The excimers in turn dissociate rapidly after spontaneous emission to prevent reabsorption of the generated radiation.

The UV light emitted by the ArF laser is beyond the visual range of human eye, and hence it is essential to use UV goggles to protect the eyes and skin as well from the carcinogenic properties of the UV beam.

Laser Properties

Laser Properties
Laser type Gas
Pump source Electrical discharge
Operating wavelength 193 nm


Organic compounds and biological matters easily absorb the UV light emitted by the ArF laser. This laser splits up the molecular bonds of tissues, which later disintegrates into the air via ablation in a controlled manner, instead of burning.

Therefore, the ArF lasers have a potential to eliminate fine layers of surface material without heating. This property enables ArF excimer lasers to be commonly used in high-resolution photolithography machines, a technology that is critical for microelectronic chip manufacturing for opthalmological application.

Other applications of ArF laser include the production of semiconductor integrated circuits. It also facilitates in situ analysis of mineral samples based on the ablation process.



Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.