Laser Ablation-Induced Plasma Characteristics in Optical Near-Field

2007 ◽  
Author(s):  
David J. Hwang ◽  
Hojeong Jeon ◽  
Costas P. Grigoropoulos
Keyword(s):  
Near Infrared ◽  
Near Field ◽  
Laser Pulses ◽  
Thin Metal Film ◽  
Nanosecond Laser ◽  
Time Resolved ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Nanosecond Laser Pulses ◽  
Plasma Characteristics

In this study, detailed characteristics of the optical near-field based ablation-induced plasma are investigated. A Cr thin metal film samples are ablated using visible and near infrared nanosecond laser pulses coupled through an optical near-field fiber probe. The ablated plasma evolution is visualized through time-resolved emission imaging and further analyzed via spectral measurement. Unveiled qualitative differences in optical near-field ablation configuration are discussed in comparison with optical far-field ablation. The measured results support implementation of laser-induced breakdown spectroscopy based on optical near-field ablation.

Dual-pulse laser-induced breakdown spectroscopy with combinations of femtosecond and nanosecond laser pulses

2003 ◽  
Vol 42 (30) ◽  
pp. 6099 ◽  
Author(s):  
Jon Scaffidi ◽  
Jack Pender ◽  
William Pearman ◽  
Scott R. Goode ◽  
Bill W. Colston ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Laser Pulses ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Nanosecond Laser Pulses

Time-resolved study of the mechanical response of tissue phantoms to nanosecond laser pulses

2011 ◽  
Vol 16 (11) ◽  
pp. 115001 ◽  
Author(s):  
Francisco G. Pérez-Gutiérrez ◽  
Santiago Camacho-López ◽  
Guillermo Aguilar
Keyword(s):  
Mechanical Response ◽  
Laser Pulses ◽  
Nanosecond Laser ◽  
Time Resolved ◽  
Tissue Phantoms ◽  
Nanosecond Laser Pulses

scholarly journals Analytical Studies of Polychromes by Time-Integrated Laser-Induced Breakdown Spectroscopy

1999 ◽  
Vol 18 (3) ◽  
pp. 155-165 ◽  
Author(s):  
Margarita Martin ◽  
Marta Castillejo ◽  
Ricardo Torres ◽  
Diego Silva
Keyword(s):  
Analytical Study ◽  
Near Infrared ◽  
Laser Pulses ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Two Samples ◽  
Laser Induced Breakdown ◽  
Spanish Baroque ◽  
Spectral Intensities ◽  
Negligible Contribution

Time integrated Laser Induced Breakdown Spectroscopy was applied to the study of real samples of polychromes. Two samples respectively from the Spanish Baroque and from the XV century were analysed. The time integrated spectra showed negligible contribution of continuum background emission. The spectra of the Baroque sample indicated the presence of vermilion; this was confirmed by Near Infrared Fourier Transform Spectroscopy. LIBS spectra of the XV century sample showed Ca, Al, Mg, Na and Pb lines and the molecular emissions CN(B-X) and C2(d-a). Relative spectral intensities were measured as a function of the number of laser pulses delivered on the same position of the sample. The LIBS analysis was compared to an exhaustive analytical study.

scholarly journals Characterization of near-infrared low energy ultra-short laser pulses for portable applications of laser induced breakdown spectroscopy

2007 ◽  
Vol 15 (21) ◽  
pp. 14044 ◽  
Author(s):  
Alexander W. Schill ◽  
David A. Heaps ◽  
Dimitra N. Stratis-Cullum ◽  
Bradley R. Arnold ◽  
Paul M. Pellegrino
Keyword(s):  
Near Infrared ◽  
Laser Pulses ◽  
Low Energy ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Short Laser Pulses
Sign in / Sign up

Export Citation Format

Share Document