Laser ablation : effects and applications / Sharon E. Black, editor.

Format:

Book

Contributor:

Black, Sharon E.

Series:

Lasers and Electro-Optics Research and Technology

Lasers and electro-optics research and technology

Language:

English

Subjects (All):

Laser ablation.

Lasers--Industrial applications.

Lasers.

Physical Description:

1 online resource (290 p.)

Edition:

1st ed.

Place of Publication:

Hauppauge, N.Y. : Nova Science Publishers, c2011.

Language Note:

English

Summary:

Laser ablation is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. This book presents research in the study of laser ablation.

Contents:

Intro

LASER ABLATION: EFFECTS AND APPLICATIONS

CONTENTS

PREFACE

Chapter 1 DOUBLE-PULSE LASER ABLATION OF SOLID TARGETS IN AMBIENT GAS: MECHANISMS AND EFFECTS

ABSTRACT

1. INTRODUCTION

2. NANOSECOND-NANOSECOND PULSES COMBINATION: EFFECTS OF DP-LA

a) Collinear Beams Configuration

Effects on plasma emission

Plasma dynamics

Mass removal mechanisms, atomized ablated mass and effects of the matrix target

Dependence on ambient gas pressure

b) Orthogonal Beams Pre-Ablation Configuration

c) Orthogonal Beams Re-Heating Configuration

3. NANOSECOND-NANOSECOND PULSES COMBINATION: DISCUSSION ON THE MECHANISMS

a) Target Heating Effects

b) Atmospheric Effects on Laser Shielding

Laser supported detonation and laser ablation

Laser supported detonation wave and ambient gas pressure

Laser absorption in double pulse configuration

Mass removal mechanisms in DP schemes

4. DOUBLE PULSE WITH SHORT AND ULTRASHORT LASER PULSES: EFFECTS AND MECHANISMS

PERSPECTIVES AND FUTURE DEVELOPMENT

ACKNOWLEDGMENTS

REFERENCES

Chapter 2 ASSESSING HUNTER-GATHERER MOBILITY IN CIS-BAIKAL, SIBERIA USING LA-ICP-MS: METHODOLOGICAL CORRECTION FOR LASER INTERACTIONS WITH CALCIUM PHOSPHATE MATRICES AND THE POTENTIAL FOR INTEGRATED LA-ICP-MS SAMPLING OF ARCHAEOLOGICAL SKELETAL MATERIALS

INTRODUCTION

HUNTER GATHERER MOBILITY IN CIS-BAIKAL

KHUZHIR-NUGE XIV CEMETERY

PRINCIPLE OF STRONTIUM CATCHMENT

TOOTH MINERALIZATION

LASER ABLATION OF TEETH

MATERIALS AND METHODS

RESULTS AND DISCUSSION

CONCLUSION

Chapter 3 MODELING OF LASER ABLATION INDUCED BY NANOSECOND AND FEMTOSECOND LASER PULSES

2. MODELING OF NANOSECOND LASER ABLATION.

2.1. Primary Mechanisms of the Material Ejection under Nanosecond Laser Action

2.2. Secondary Mechanisms: Plasma Plume Expansion after Nanosecond Laser Pulse

2.2.1. Combined LP -DSMC method

2.2.2. Results of the combined LP -DSMC calculations

3. MODELING OF SHORT AND ULTRA-SHORT (FEMTOSECOND) LASER ABLATION

3.1. Primary Mechanisms of the Material Ejection under Femtosecond Laser Action

3.1.1. Metallic targets

3.1.2. Dielectric targets

3.2. Secondary Mechanisms: Plasma Plume Expansion after Femtosecond Laser Pulse

Chapter 4 FABRICATION OF SILICON NANOCRYSTAL BASED STRUCTURES WITH NANOSECOND LASER ABLATION PROCESSINGS IN LIQUID MEDIA

2. EXPERIMENTAL DETAILS

2.1. Laser Ablation

2.2. Laser Fragmentation

3. SI-NCS AND SI-NCS BASED COMPOSITES PRODUCED BY LASER ABLATION IN LIQUID MEDIA

4. INDUCED SELF-ASSEMBY &amp

TUNING OF SI-NCS OPTICAL PROPERTIES BY NS LASER FRAGMENTATION IN LIQUID MEDIA

5. PHYSICS OF THE NANOSECOND-LASER PROCESSINGS IN LIQUID MEDIA

Chapter 5 HO:YAG LASER LITHOTRIPSY

MECHANISM OF HO:YAG LASER LITHOTRIPSY

PROPERTIES OF HO:YAG LASER LITHOTRIPSY

FIBERS FOR HO:YAG LASER LITHOTRIPSY

SAFETY ASPECT OF HO:YAG LASER LITHOTRIPSY

CONCLUSIONS

Chapter 6 COMPUTER MODELLING OF FEMTOSECOND LASER ABLATION OF SEMICONDUCTORS AND DIELECTRICS

2. MOLECULAR DYNAMICS SIMULATION

3. THE FOKKER-PLANK APPROACH

4. TWO-TEMPERATURE MODELS

5. COMPUTATION OF CRATER GEOMETRY

Chapter7THERMOPHYSICALEFFECTSOFFEMTOSECONDLASERABLATIONOFMETALTARGET

Abstract

1.Introduction

2.EffectofPulseWidthandFluenceofFemtosecondLaserontheElectron-phononRelaxationTime

2.1.Two-temperatureModel.

2.2.ElectronThermalDiffusionLength

2.3.ResultsandDiscussion

2.3.1.Thespace-andtime-dependenceofelectronandlatticetemperatureoftarget

2.3.2.Thenumericalsolutionofelectron-phononrelaxationtime

2.3.3.Effectofpulsewidthoffemtosecondlaserontheelectron-phononrelaxationtime

2.3.4.Effectoffluenceoffemtosecondlaserontheelectron-phononrelaxationtime

2.3.5.Heat-affectedzoneperpulseasafunctionoflaserfluence

3.ImprovedTwo-temperatureModelanditsApplicationinFemtosecondLaserAblationofMetalTarget

3.1.TheEffectofTemperatureonHeatCapacityandThermalConductivityoftheElectrons

3.2.ElectronTemperatureDependencesoftheAbsorptionCoefficientandtheAbsorptivity

3.3.VerificationofAbsorptionCoefficientAnalyticApproximation

3.4.TheImprovedTwoTemperatureModel

3.5.ResultsandDiscussion

3.5.1.TheTime-dependenceofElectronandLatticeTemperatureofTarget

3.5.2.Ablationrateperpulseasafunctionoflaserfluence

4.AUnifiedThermalModelofThermophysicalEffectswithPulseWidthfromNanosecondtoFemtosecond

4.1.TheUnifiedModel

4.1.1.Physicalbackground

4.1.2.Thecontentsofourmodel

4.2.ResultsandDiscussions

4.2.1.Determinationofthevalueofa

4.2.2.Theevolvementofvaporizationthresholdfluencewithlaserpulsewidth

5.Conclusion

6.Ackowledgments

References

Chapter 8 FORMATION OF NANOPARTICLES UNDER LASER ABLATION OF SOLIDS IN LIQUIDS

General Setup of Laser Ablation in Liquids

EXPERIMENTAL TECHNIQUE

1. Pulse Duration

2. Laser Wavelength

3. Repetition Rate

HISTORICAL REVIEW

LASER ABLATION OF AN AG TARGET IN LIQUID ENVIRONMENT

LASER ABLATION OF AN AU TARGET IN LIQUID ENVIRONMENT

INTERACTION OF NANOPARTICLES WITH LASER BEAM

FRAGMENTATION OF NP UNDER LASER EXPOSURE IN LIQUIDS

SHAPE-SELECTIVE FRAGMENTATION

FORMATION OF THE AU-AG ALLOY UNDER LASER IRRADIATION OF NANOPARTICLES.

NANOPARTICLES OF CU, BRASS, AND BRONZE

INTERNAL SEGREGATION OF BRASS NP

SELF-INFLUENCE OF A FEMTOSECOND LASER BEAM

INFLUENCE OF THE NATURE OF THE LIQUID

Ablation of a Ti Target

Ablation of Sn

W and Mo NP

Modeling of Distribution Function

INFLUENCE OF INTENSITY DISTRIBUTION OF THE LASER BEAM ON THE SHAPE OF NANOPARTICLES

NANOSTRUCTURING OF SOLIDS UNDER THEIR LASER ABLATION IN LIQUIDS

EXCITATION OF HIGH ENERGY LEVELS

Chapter 9 NANODIAMONDS FROM LASER ABLATION IN LIQUID

2. LASER ABLATION IN LIQUID

2.1. Fundamental Processes in Laser Ablation In Liquid

2.2. Synthesis of Nanocrystals Using Laser Ablation in Liquid

3. PULSED-LASER INDUCED LIQUID-SOLID INTERFACE REACTION

3.1. PLIIR Apparatus

3.2. Thermodynamic and Kinetic Factors of PLIIR

4. DIAMOND NANOCRYSTALS SYNTHESIS BY PLIIR

4.1. Synthesis of Nanodiamonds by PLIIR

4.2. Thermodynamic Nucleation of Diamonds upon PLIIR

4.3. Graphite-Diamond Phase Transition upon PLIIR

4.4. Structural Transformation of Diamonds upon PLIIR

4.5. Stability of Nanodiamonds Synthesized by PLIIR

INDEX

Blank Page.

Notes:

Description based upon print version of record.

Includes bibliographical references and index.

Description based on print version record.

ISBN:

1-61209-189-X

OCLC:

744651570