High resolution laser microprocessing : implementation and techniques / Bogdan Ştefăniţă Călin, Marian Zamfirescu, Niculae Puşcaş.

Format:

Book

Author/Creator:

Călin, Bogdan-Ștefăniţă, author.

Zamfirescu, Marian, author.

Puşcaş, Niculae, author.

Series:

IOP Series in Coherent Sources, Quantum Fundamentals, and Applications Series.

IOP Series in Coherent Sources, Quantum Fundamentals, and Applications Series

Language:

English

Physical Description:

1 online resource (275 pages)

Edition:

1st ed.

Place of Publication:

Bristol : Institute of Physics Publishing, [2025]

Summary:

This book mainly presents high resolution laser microprocessing techniques, starting from general optics and ultrafast laser physics, up to how to build a laser processing station, align a laser beam and measure various laser parameters, in a step-by-step manner.

Contents:

Intro

Author biograpies

Bogdan Ştefăniţă Călin

Marian Zamfirescu

Niculae Puşcaş

Chapter Optical physics for laser materials processing

1.1 Electromagnetic theory of light propagation

1.2 Paraxial approximation

1.3 The eikonal equation-material polarization approach

1.4 The eikonal equation-Fermat's principle approach

1.5 Propagation of electromagnetic waves through matter. Lorentz oscillator

1.6 Lorentz oscillator model

1.7 Lorentz model for dielectrics

References

Chapter Principles of laser physics

2.1 Introductory atomic physics for laser transitions

2.2 Principles of laser physics

2.3 Population inversion and threshold

2.4 Optical resonators

2.4.1 Oscillation modes

2.4.2 Laser resonator characteristics

2.4.3 Mode distribution in an optical resonator

2.5 Optical resonator stability

2.5.1 Fabry-Pérot resonator

2.5.2 Concave mirror resonator

2.5.3 Resonator types

2.6 Ideal Gaussian beams

2.6.1 Gaussian beam parameters

2.6.2 Gaussian beams in stable resonators

2.7 Laser-matter interaction in quantum formalism

2.7.1 Density matrix

2.7.2 Density matrix formalism

2.7.3 Equations of motion

2.8 Resonant absorption, dispersion and saturation

2.8.1 Absorption and dispersion

2.8.2 Atomic saturation

2.8.3 Homogeneous and inhomogeneous broadening of a spectral line

Chapter Laser systems for materials processing

3.1 Pulse generation: Q-switch and mode-locking

3.1.1 Q-switch

3.1.2 Mode-locking

3.2 Ultrafast laser amplifiers

3.2.1 Gain and extraction efficiency. Frantz-Nodvick equation

3.2.2 Regenerative laser amplifiers

3.2.3 Multipass laser amplifiers

3.3 Characterization of laser pulses

3.3.1 Energy and power measurement

3.3.2 Spatial measurement

3.3.3 Power density and energy density.

3.3.4 Beam propagation. Beam quality factor M2

3.3.5 Temporal measurement

3.3.6 Spectral measurement

3.4 Dispersion of ultrafast laser pulses

3.4.1 Group delay dispersion

3.4.2 Pairs of gratings

3.4.3 Chirped mirrors

3.4.4 Prisms compressor

3.4.5 Acousto-optic programmable dispersive filter

3.5 Pulse shaping

3.5.1 Temporal pulse shaping

3.5.2 Spatial beam shaping

Chapter Optomechanical systems for laser microprocessing

4.1 Focusing optics and image formation-short recap

4.2 Beam alignment procedures

4.2.1 Alignment procedure with two mirrors and two irises

4.2.2 Alignment procedure with two mirrors and one iris

4.2.3 Alignment of an invisible laser beam

4.3 Numerical aperture

4.4 Laser micro- and nanoprocessing workstation

4.4.1 Laser source and beam delivery optics

4.4.2 Beam manipulation components

4.4.3 Beam monitoring

4.4.4 Optical systems for beam focusing

4.4.5 Translation stages and galvanometric scanners

4.4.6 Visualization system

4.4.7 Command and control system

4.4.8 Safe processing environment

Chapter Laser-matter interaction for microprocessing

5.1 Laser source

5.2 Beam delivery

5.3 Laser-matter interaction

Chapter Applications of high-resolution laser microprocessing

6.1 Microstructuring by laser ablation

6.1.1 Laser ablation threshold

6.1.2 Micro-structures fabricated by laser ablation

6.2 Laser-induced periodic surface structures

6.2.1 Mechanisms of LIPSS formation

6.2.2 Optimization of laser parameters for LIPSS nanotexturing

6.2.3 Applications of nanotextured surfaces

6.3 Parallel near-field laser ablation

6.4 Two-photon polymerization

6.4.1 Typical sample setup for two-photon polymerization in drop-casted photoresist

6.4.2 Immersion methods for sample development.

6.4.3 Possible fabrication issues for TPA additive manufacturing

6.5 Subtractive manufacturing through laser-assisted etching

Chapter Python scripts

7.1 Probability distribution of an electron in the YZ plane

7.2 Transverse modes in a laser cavity

7.3 Focus of a Gaussian beam

7.4 Electron wavefunctions in the Hydrogen atom.

7.5 Modelocking in a laser cavity.

7.6 Electric susceptibility

7.7 Electric permittivity

7.8 Refractive index and attenuation

7.9 Laser amplification. Gain and extraction efficiency

7.10 Multipass laser amplifier

7.11 Dispersion of ultrafast laser pulses

7.12 Fourier synthesis of temporal pulse shapes

7.13 Beam shaping from phase information.

Notes:

Description based on publisher supplied metadata and other sources.

ISBN:

978-0-7503-3239-2