Laser ablation of dielectrics with temporally shaped femtosecond pulses

被引:174
作者
Stoian, R [2 ]
Boyle, M
Thoss, A
Rosenfeld, A
Korn, G
Hertel, IV
Campbell, EEB
机构
[1] Natl Inst Laser Plasma & Radiat Phys, Bucharest 76900, Romania
[2] Max Born Inst Nichtlineare Opt & Kurzzeitspektros, D-12489 Berlin, Germany
[3] Gothenburg Univ, Dept Expt Phys, S-41296 Gothenburg, Sweden
[4] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
关键词
D O I
10.1063/1.1432747
中图分类号
O59 [应用物理学];
学科分类号
摘要
A significant improvement in the quality of ultrafast laser microstructuring of dielectrics is demonstrated by using temporally shaped pulse trains with subpicosecond separation. The sequential energy delivery induces a material softening during the initial steps of excitation changing the energy coupling for the subsequent steps. This leads to lower stress, cleaner structures, and provides a material-dependent optimization process. (C) 2002 American Institute of Physics.
引用
收藏
页码:353 / 355
页数:3
相关论文
共 14 条
[1]   Ultrafast-laser driven micro-explosions in transparent materials [J].
Glezer, EN ;
Mazur, E .
APPLIED PHYSICS LETTERS, 1997, 71 (07) :882-884
[2]   Laser micromachining of 'transparent' fused silica with 1-ps pulses and pulse trains [J].
Herman, PR ;
Oettl, A ;
Chen, KP ;
Marjoribanks, RS .
COMMERCIAL AND BIOMEDICAL APPLICATIONS OF ULTRAFAST LASERS, 1999, 3616 :148-155
[3]   Far-field and near-field material processing with femtosecond laser pulses [J].
Korte, F ;
Nolte, S ;
Chichkov, BN ;
Bauer, T ;
Kamlage, G ;
Wagner, T ;
Fallnich, C ;
Welling, H .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1999, 69 :S7-S11
[4]  
LEZNER M, 1998, PHYS REV LETT, V80, P4076
[5]   Ultrafast electron dynamics in femtosecond optical breakdown of dielectrics [J].
Li, M ;
Menon, S ;
Nibarger, JP ;
Gibson, GN .
PHYSICAL REVIEW LETTERS, 1999, 82 (11) :2394-2397
[6]   Femtosecond laser pulse excitation of electrons and excitons in CaF2 and SrF2 [J].
Lindner, R ;
Reichling, M ;
Williams, RT ;
Matthias, E .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (10) :2339-2346
[7]   Ultrafast carrier dynamics in laser-excited materials:: subpicosecond optical studies [J].
Quére, F ;
Guizard, S ;
Martin, P ;
Petite, G ;
Gobert, O ;
Meynadier, P ;
Perdrix, M .
APPLIED PHYSICS B-LASERS AND OPTICS, 1999, 68 (03) :459-463
[8]   Micromachining bulk glass by use of femtosecond laser pulses with nanojoule energy [J].
Schaffer, CB ;
Brodeur, A ;
García, JF ;
Mazur, E .
OPTICS LETTERS, 2001, 26 (02) :93-95
[9]   UV-laser ablation of ductile and brittle metal films [J].
Siegel, J ;
Ettrich, K ;
Welsch, E ;
Matthias, E .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1997, 64 (02) :213-218
[10]   Coulomb explosion in ultrashort pulsed laser ablation of Al2O3 [J].
Stoian, R ;
Ashkenasi, D ;
Rosenfeld, A ;
Campbell, EEB .
PHYSICAL REVIEW B, 2000, 62 (19) :13167-13173