Study of the first stages of laser-induced contamination

Georges Gebrayel El Reaidy; Frank R. Wagner; Delphine Faye; Jean-Yves Natoli

doi:10.1117/1.OE.57.12.121903

11 September 2018 Study of the first stages of laser-induced contamination

Georges Gebrayel El Reaidy, Frank R. Wagner, Delphine Faye, Jean-Yves Natoli

Author Affiliations +

Optical Engineering, Vol. 57, Issue 12, 121903 (September 2018). https://doi.org/10.1117/1.OE.57.12.121903

Abstract

A vacuum chamber was designed to study the risk of laser-induced contamination (LIC) on optical payloads integrated on spaceflight missions. In this context, tests were performed with a nanosecond pulsed laser at 355 nm on fused silica substrates under toluene exposure with multiple laser irradiation. Specific experimental procedures are described in order to obtain repeatable results. Finally, series of tests were performed to investigate the onset of the LIC deposition process and its evolution over time. A slight antireflective effect is consistently observed at the onset of the deposition process. We suggest that this is an indication that the LIC deposition process in our experimental conditions starts with a nucleation layer consisting of small dense islands of deposit.

Citation Download Citation

Georges Gebrayel El Reaidy, Frank R. Wagner, Delphine Faye, and Jean-Yves Natoli "Study of the first stages of laser-induced contamination," Optical Engineering 57(12), 121903 (11 September 2018). https://doi.org/10.1117/1.OE.57.12.121903

Received: 9 February 2018; Accepted: 18 July 2018; Published: 11 September 2018

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available