e-book
Femtosecond Laser Pulses. Principles and Experiments
The people who will gain the most from this book are the scientists (graduate
students, engineers, researchers) who are not necessarily trained as laser
scientists but who want to use femtosecond pulses and/or gain a real understanding
of this tool. Laser specialists will also find the book useful, particularly
if they have to teach the subject to graduate or PhD students. For every
reader, this book provides a simple progressive and pedagogic approach to
this field. It is particularly enhanced by the descriptions of basic experiments
or exercises that can be used for further study or practice.
The first chapter simply recalls the basic laser principles necessary to understand
the generation process of ultrashort pulses. The second chapter is a
brief introduction to the basics behind the experimental problems generated
by ultrashort laser pulses when they travel through different optical devices
or samples. Chapter 3 describes how ultrashort pulses are generated independently
of the laser medium. In Chaps. 4 and 5 the main laser sources used
to generate ultrashort laser pulses and their characteristics are described.
Chapter 6 presents the different methods currently used to characterize these
pulses, and Chap. 7 describes how to change these characteristics (pulse duration,
amplification, wavelength tuning, etc.). The rest of the book is devoted
to applications, essentially the different experimental methods based on the
use of ultrashort laser pulses. Chapter 8 describes the principal spectroscopic
methods, presenting some typical results, and Chap. 9 addresses mainly the
problems that may arise when the pulse duration is as short as the coherence
time of the sample being studied. Chapter 10 describes typical applications
of ultrashort laser pulses for the characterisation of electronic devices and the
electromagnetic pulses generated at low frequency. Chapter 11 is an overview
of the coherent control physical processes making it possible to control evolution
channels in atoms, molecules and solids. Several examples of oriented
reactions in this chapter illustrate the possible applications of such a technique.
Chapter 12 introduces the attosecond pulse generation by femtosecond
pulse-matter interaction. It is designed for a best understanding of the physics
principles sustaining attosecond pulse creation as well as the encountered difficulties
in such processes.
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