skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Relaxation dynamics of nanosecond laser superheated material in dielectrics

Journal Article · · Optica
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
+ Show Author Affiliations

Intense laser pulses can cause superheating of the near-surface volume of materials. This mechanism is widely used in applications such as laser micromachining, laser ablation, or laser assisted thin film deposition. The relaxation of the near solid density superheated material is not well understood, however. In this work, we investigate the relaxation dynamics of the superheated material formed in several dielectrics with widely differing physical properties. The results suggest that the relaxation process involves a number of distinct phases, which include the delayed explosive ejection of microscale particles starting after the pressure of the superheated material is reduced to about 4 GPa and for a time duration on the order of 1 μs. The appearance of a subset of collected ejected particles in fused silica is similar to that of micro-tektites and provides information about the state of the superheated material at the time of ejection. Lastly, these results advance our understanding of a key aspect of the laser–material interaction pathway and can lead to optimization of associated applications ranging from material processing to laser surgery.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1249137
Report Number(s):
LLNL-JRNL-659895
Journal Information:
Optica, Vol. 2, Issue 8; ISSN 2334-2536
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

References (36)

Transient States of Matter during Short Pulse Laser Ablation journal July 1998
An Atomic-Level View of Melting Using Femtosecond Electron Diffraction journal November 2003
Imaging Atomic Structure and Dynamics with Ultrafast X-ray Scattering journal June 2007
Time-Resolved Shadowgraphs of Material Ejection in Intense Femtosecond Laser Ablation of Aluminum journal October 2007
High-intensity laser-induced vaporization and explosion of solid material journal February 1972
Laser-induced phase explosion: new physical problems when a condensed phase approaches the thermodynamic critical temperature journal December 1999
Pulsed laser ablation of solids: transition from normal vaporization to phase explosion journal August 2001
Thermodynamic pathways to melting, ablation, and solidification in absorbing solids under pulsed laser irradiation journal April 2006
Making Molecular Balloons in Laser-Induced Explosive Boiling of Polymer Solutions journal May 2007
Dynamics of Plume Propagation and Splitting during Pulsed-Laser Ablation journal August 1997
Internal structure and expansion dynamics of laser ablation plumes into ambient gases journal March 2003
Laser ablation of Cu and plume expansion into 1atm ambient gas journal March 2005
Experimental investigation of the structure and the dynamics of nanosecond laser-induced plasma in 1-atm argon ambient gas journal November 2013
Time-resolved observation of gas-dynamic discontinuities arising during excimer laser ablation and their interpretation journal April 1995
Experimental and computational study of complex shockwave dynamics in laser ablation plumes in argon atmosphere journal August 2012
Observation of nanosecond laser-induced phase explosion in aluminum journal November 2006
Delayed phase explosion during high-power nanosecond laser ablation of silicon journal April 2002
Mathematical model for laser ablation to generate nanoscale and submicrometer-size particles journal January 1994
Modelling of high-density laser-material interaction using fast level set method journal January 2001
Modeling of nanosecond laser ablation with vapor plasma formation journal April 2006
Time-resolved microscope system to image material response following localized laser energy deposition: exit surface damage in fused silica as a case example journal January 2011
Kinetics of ejected particles during breakdown in fused silica by nanosecond laser pulses journal January 2011
Material response during nanosecond laser induced breakdown inside of the exit surface of fused silica: Material response during nanosecond laser journal February 2013
Dynamics of the plume containing nanometric-sized particles ejected into the atmospheric air following laser-induced breakdown on the exit surface of a CaF 2 optical window journal January 2014
Fatigue limit in fused silica journal May 2001
Morphology and microstructure in fused silica induced by high fluence ultraviolet 3ω (355nm) laser pulses journal March 2006
Characterization of ejected fused silica particles following surface breakdown with nanosecond pulses journal January 2012
Laser-driven formation of a high-pressure phase in amorphous silica journal November 2003
Growth rate of a shocked mixing layer with known initial perturbations journal May 2013
Effect of viscosity on Rayleigh-Taylor and Richtmyer-Meshkov instabilities journal January 1993
Viscosity of silica journal December 2002
Localized Dynamics during Laser-Induced Damage in Optical Materials journal February 2004
Microtektites, Microkrystites, and Spinels from a Late Pliocene Asteroid Impact in the Southern Ocean journal March 1991
Tektites Are Terrestrial journal June 1966
Laser-induced phase explosion: new physical problems when a condensed phase approaches the thermodynamic critical temperature journal December 1999
High-intensity laser-induced vaporization and explosion of solid material journal June 1971

Cited By (5)

Observation of particle ejection behavior following laser-induced breakdown on the rear surface of a sodium chloride optical window journal August 2016
In-situ microscopy of front and rear side ablation processes in alkali aluminosilicate glass using ultra short pulsed laser radiation journal January 2017
Experimental study on the laser-matter-plume interaction and its effects on ablation characteristics during nanosecond pulsed laser scanning ablation process journal January 2019
Dynamics of pressure waves during femtosecond laser processing of glass journal January 2019
In-situ microscopy of front and rear side ablation processes in alkali aluminosilicate glass using ultra short pulsed laser radiation text January 2017

Similar Records

Dynamics of plasma formation, relaxation, and topography modification induced by femtosecond laser pulses in crystalline and amorphous dielectrics
Journal Article · Sat May 15 00:00:00 EDT 2010 · Journal of the Optical Society of America. Part B, Optical Physics · OSTI ID:1249137
+4 more
Morphology of ejected particles and impact sites on intercepting substrates following exit-surface laser damage with nanosecond pulses in silica
Journal Article · Thu Sep 08 00:00:00 EDT 2016 · Optical Engineering · OSTI ID:1249137
Laser-Material Interaction of Powerful Ultrashort Laser Pulses
Technical Report · Mon Jan 06 00:00:00 EST 2003 · OSTI ID:1249137

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
laser-induced breakdown
laser materials processing
laser damage
optical materials