Author: Tsungming TsaiPublisher:
ISBN:
Category :
Languages : en
Pages : 86
Book Description
Inhomogeneous Broadening Effects on Pulse Propagation in Gaseous Laser Medium
Author: Tsungming TsaiInhomogeneous Broadening Effects on Pulse Propagation in Gaseous Laser Medium
Author: Tsungming Tsai (Sc.M. 1977)Publisher:
ISBN:
Category :
Languages : en
Pages : 86
Book Description
The Propagation of Intense Laser Pulses Through Resonant Media: the Optical Transient Nutation Effect
Author: George Benjamin HockerPublisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 244
Book Description
Laser Physics
Author: Murray, Iii SargentPublisher: CRC Press
ISBN: 0429973144
Category : Science
Languages : en
Pages : 334
Book Description
This book treats the interaction of radiation with matter, particular attention being paid to the laser. Knowledge is assumed of the usual half-year introduction of quantum mechanics found in undergraduate physics curricula. The material can be covered in two semesters, or, alternatively, the first part (Chaps 1-13) can be used as a one-semester course in which quantum mechanical aspects of the electromagnetic field are ignored. Each chapter is accompanied by problems that illustrate the text and give useful (occasionally new) results. Existing laser media are intrinsically quantum mechanical and are most easily studied with the quantum theory. Understanding the laser along these lines enlivens one's understanding of quantum mechanics itself. In fact, the material constitutes a viable, applied alternative for the usual second and third semesters of quantum mechanics.
Ultra-Intense Laser Pulse Propagation in Gas and Plasma
Author: T. M. AntonsenPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
It is proposed here to continue their program in the development of theories and models capable of describing the varied phenomena expected to influence the propagation of ultra-intense, ultra-short laser pulses with particular emphasis on guided propagation. This program builds upon expertise already developed over the years through collaborations with the NSF funded experimental effort lead by Professor Howard Milchberg here at Maryland, and in addition the research group at the Ecole Polytechnique in France. As in the past, close coupling between theory and experiment will continue. The main effort of the proposed research will center on the development of computational models and analytic theories of intense laser pulse propagation and guiding structures. In particular, they will use their simulation code WAKE to study propagation in plasma channels, in dielectric capillaries and in gases where self focusing is important. At present this code simulates the two-dimensional propagation (radial coordinate, axial coordinate and time) of short pulses in gas/plasma media. The plasma is treated either as an ensemble of particles which respond to the ponderomotive force of the laser and the self consistent electric and magnetic fields created in the wake of pulse or as a fluid. the plasma particle motion is treated kinetically and relativistically allowing for study of intense pulses that result in complete cavitation of the plasma. The gas is treated as a nonlinear medium with rate equations describing the various stages of ionization. A number of important physics issues will be addressed during the program. These include (1) studies of propagation in plasma channels, (2) investigation of plasma channel nonuniformities caused by parametric excitation of channel modes, (3) propagation in dielectric capillaries including harmonic generation and ionization scattering, (4) self guided propagation in gas, (5) studies of the ionization scattering instability recently identified theoretically and experimentally in the group, and (6) studies of propagation in cluster plasmas. New models will be developed for the harmonic generation of radiation and these will be incorporated in the modeling and simulation.
Interaction of Intense Laser Pulses with Gaseous Media
Author: Ilya Semenovich AlexeevPublisher:
ISBN:
Category : Laser pulses, Ultrashort
Languages : en
Pages : 240
Book Description
Lasers and Masers
Author: Propagation Effects for a Femtosecond Laser Pulse
Author: S. C. RaePublisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
A model has been developed for the propagation of a femtosecond laser pulse through an ionizing medium, which predicts the spectral shift and broadening in the transmitted pulse, and the electron energy distribution within the plasma. For gaseous targets at laser intensities of 10 to the 15th010 to the 16th W/sq. cm., the calculated blue-shifts do not agree with predictions from a homogeneous Drude model. The importance of the electron energy distribution for cold-plasma production in solid-target experiments is discussed.
Author: Heihachi Sato
Author: