This book discusses aspects of laser pulses generation, characterization, and practical applications. Some new achievements in theory, experiments, and design are demonstrated. The introductive chapter shortly overviews the physical principles of pulsed lasers operation with pulse durations from seconds to yoctoseconds. A theory of mode-locking, based on the optical noise concept, is discussed. With this approximation, all paradoxes of ultrashort laser pulse formation have been explained.
Ebook Femtosecond laser pulses principles and experiments is compiled with the content: Laser Basics, Pulsed Optics, Methods for the Generation of Ultrashort Laser Pulses Mode-Locking, Further Methods for the Generation of Ultrashort Optical Pulses, Pulsed Semiconductor Lasers, How to Manipulate and Change the Characteristics of Laser Pulses,... Invite you to consult the document details.
The molecular carbon dioxide laser was invented in 1964 by C. K. N. Patel at Bell Labs.
Immediately, it proved to be a high-power, continuous wave (CW) laser and a
relatively high-efficiency gas laser (20-25% conversion of electrical energy into laser
radiation), both in CW or pulsed operation. As a matter of fact, the CO2 lasers are the
highest-power CW lasers (more than 100 kW) and one of the highest-energy pulsed
gas laser (100 kJ) that are currently available.
A new type of semiconductor laser is studied, in which injected carriers in the active region
are quantum mechanically confined in localized finite self-assembled wire-like quantumdash
(Qdash) structures that are varied in sizes and compositions. Effects of such carrier
distribution and quasi three-dimensional density of states contribute to a quasisupercontinuum
interband lasing characteristics, which is a new laser design platform as
compared to continuous broad emission spectrum generated by nonlinear media pumped
with ultrashort laser pulse....
the generation of ultrashort laser pulses. Beginning with mode-locking of
glass lasers in the 1960s, the development of dye lasers brought the pulse
width down from picoseconds to femtoseconds. The breakthrough in solid
state laser pulse generation provided the current reliable table-top laser
systems capable of average power of about 1 watt, and peak power density
of easily watts per square centimeter, with pulse widths in the
range of four to eight femtoseconds.
In this volume, recent contributions on coherence provide a useful perspective on the
diversity of various coherent sources of emission and coherent related phenomena of
current interest. These papers provide a preamble for a larger collection of contributions
on ultrashort pulse laser generation and ultrashort pulse laser phenomena. Papers
on ultrashort pulse phenomena include works on few cycle pulses, high-power
generation, propagation in various media, and a variety of applications of current interest....
The studies of ultrashort laser pulse interactions with single atoms, molecules,
nanoparticles and condensed matter is a hot topic of modern physics, since the
obtained results stimulate the development of fundamental principles of light-matter
interaction and, at the same time, find the wide area of practical applications.
This volume contains the contributions devoted both to the discussion of general
principles and fundamental experiments, as well as the different practical applications.