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Performances of 800 nm femtosecond laser ablation on natural and synthetic quartz

Clement Courtieu, Francois-Xavier D'Abzac, Jerome Chmeleff, Damien Guillaume and Anne-Magali Seydoux-Guillaume
Performances of 800 nm femtosecond laser ablation on natural and synthetic quartz (in EMPG XII Toulouse; Experimental mineralogy, petrology and geochemistry symposium, Jannick Ingrin (editor) and Mike Toplis (editor))
European Journal of Mineralogy (June 2011) 23 (3): 391-400

Abstract

A commercial femtosecond laser system operating at its fundamental wavelength (lambda =800 nm, near Infra-Red) was used to ablate both synthetic and natural quartz on polished and unpolished surfaces. Ablation rates and maximum depths were determined using two distinct optical setups: a 25 mm focal length Cassegrain reflecting objective, and a 50 mm focal length convergent coated lens. All samples were ablated with the same laser beam at E (sub 0) =1 mJ, tau =60 fs, f=5 Hz and N=10-8000 shots. The depth of ablation craters obtained with the lens shows a linear increase with shot number N up to N=2000 shots. Then the depth increases much less with N and reaches a plateau above N=3000 shots. Maximum depth was close to 1300 mu m for N=3000 shots. Using the reflecting objective, ablation rate starts from 0.42 mu m/shot and decreases rapidly to 0.02 mu m/shot at a maximum depth of 350 mu m for N=1500 shots. Ablation thresholds (F (sub th) ) were calculated for 1 and 10 consecutive shots with energy increasing from E (sub 0) =0.1-2 mJ/pulse. Threshold values varies from F (sub th) =0.1 J.cm (super -2) (unpolished, 10 shots) to F (sub th) =2.9 J.cm (super -2) (polished, single shot). The energy penetration of IR-femtosecond laser pulses in quartz has been calculated at l=271 nm. The low absorption of IR wavelengths in quartz affects the ablation efficiency in the first shots. The associated non-linear effects are visible on a crater FIB foil observed with TEM as progressive high-pressure photomechanical damage developing under the ablation pit. The present study emphasizes the potential of IR-femtosecond laser for ablation of highly transparent material, and provides reliable data for LA-ICP-MS applications in earth sciences.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 23
Serial Issue: 3
Title: Performances of 800 nm femtosecond laser ablation on natural and synthetic quartz
Title: EMPG XII Toulouse; Experimental mineralogy, petrology and geochemistry symposium
Author(s): Courtieu, ClementD'Abzac, Francois-XavierChmeleff, JeromeGuillaume, DamienSeydoux-Guillaume, Anne-Magali
Author(s): Ingrin, Jannickeditor
Author(s): Toplis, Mikeeditor
Affiliation: Universite de Toulouse III, Laboratoire des Mecanismes et Transferts en Geologie, Toulouse, France
Affiliation: Paul Sabatier University, Toulouse, France
Pages: 391-400
Published: 201106
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Germany
Meeting name: Twelfth international symposium on Experimental mineralogy, petrology and geochemistry
Meeting location: Toulouse, FRA, France
Meeting date: 20100411April 11-14, 2010
References: 28
Accession Number: 2011-064942
Categories: General geochemistry
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201136
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