Laser-Induced Damage In The Limits Of Ultrashort Pulses And Short Wavelengths

Journal Article · Thu Apr 21 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1928153· OSTI ID:20722123

Lenzner, Matthias ^[1]

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1. Physics Deparment, City College, 138th Street at Convent Ave, New York, NY 10033 (United States)

The interaction of electromagnetic radiation with condensed matter bears two important aspects: A physical one, as the most significant source of information about solids; and a technological aspect -- the possibility to structure materials with the help of laser light.In this paper, investigations of several materials (dielectrics, metals, semiconductors) with laser pulses as short as 5 fs will be shown, the behavior of the solid close to the threshold of optical breakdown is explored. The results lead to important implications for the feasibility and efficiency of femtosecond machining. Due to nonlinear processes at high intensities machining precision beyond the diffraction limit can be achieved.On the other hand, the application of UV radiation leads to new levels of precision in micromachining, as well. This will be shown for the example of corneal ablation for Laser Vision Correction.

• OSTI ID: 20722123
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 759; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABLATION
ACCURACY
CORRECTIONS
DIELECTRIC MATERIALS
DIFFRACTION
LASER BEAM MACHINING
LASERS
NONLINEAR PROBLEMS
PULSES
SEMICONDUCTOR MATERIALS
ULTRAVIOLET RADIATION
WAVELENGTHS