Gasdynamic Lasers: An Introduction
- 1st Edition - January 28, 1976
- Latest edition
- Author: John D. Jr. Anderson
- Language: English
Gasdynamic Lasers: An Introduction is a 12-chapter introductory text to major development generations of gasdynamic lasers, focusing on their underlying physical and fundamental… Read more
Description
Description
Gasdynamic Lasers: An Introduction is a 12-chapter introductory text to major development generations of gasdynamic lasers, focusing on their underlying physical and fundamental aspects. The opening chapters discuss the basic detailed physical phenomena that ultimately are responsible for producing gasdynamic laser action and the methods of calculating the performance of these devices. These topics are followed by a chapter on confirmation of the performance calculations through arc and shock tunnel experiments. The discussion then shifts to vibrational relaxation process behind normal shock waves in CO2-N2-He mixtures and assesses their population inversions occurring in the nonequilibrium flow. Other chapters explore the concepts of downstream mixing and optical cavity in gasdynamic lasers, as well as the laser beam extracted from these devices. A systematic study of aerodynamic windows that use supersonic flow across the aperture is presented in the concluding chapters, along with the phenomena associated with gasdynamic laser diffusers. This introductory text will be of great value to professional scientists and engineers, as well as to students and workers in the field who are interested in interdisciplinary applied science.
Table of contents
Table of contents
Preface
Acknowledgments
Chapter I Introduction
Chapter II Elementary Physics
2.1 Energy Levels and Population Inversion
2.2 Why Does a Population Inversion Make a Laser Work?
2.3 Definition and Calculation of Small-Signal Gain
Chapter III Thermodynamics and Vibrational Kinetics of the CO2-N2-H2O OR He Gasdynamic Laser
3.1 Molecular Properties of CO2 and N2
3.2 Vibrational Energy and Population Distribution
3.3 Vibrational Kinetics
3.4 Vibrational Rate Equations
Chapter IV Calculation Of Gasdynamic Laser Performance
4.1 Analysis of the Flow Field
4.2 Vibrational Model
4.3 Results
4.4 Comparison with Basov
4.5 Coupled and Uncoupled Flows
4.6 Recapitulation
4.7 Power Extraction
Chapter V Comparison Between Theory and Experiment
5.1 Kinetic Rate Data
5.2 Nonequilibrium Gasdynamics
5.3 Small-Signal Gain
5.4 NOL 3-MW Arc Tunnel
5.5 NOL 12.7-cm Shock Tunnel
5.6 Arc Tunnel Experiments
5.7 Shock Tunnel Experiments
5.8 Other Experiments
Chapter VI Inversions Behind Normal Shock Waves
Chapter VII CO2-N2 Gasdynamic Lasers: State-Of-The-Art
7.1 Introduction
7.2 Increased H2O Content
7.3 Increased Temperature
7.4 Binary Scaling
7.5 Fuels for Gasdynamic Lasers
Chapter VIII The Carbon Monoxide Gasdynamic Laser
8.1 Introduction
8.2 The Physical Process
8.3 Results
8.4 Disadvantage
Chapter IX Downstream Mixing Gasdynamic Lasers
9.1 Introduction
9.2 Problems
9.3 Results
Chapter X Optical Cavity Considerations for Gasdynamic Lasers
10.1 Introduction
10.2 Cavity Types
10.3 Causes of Beam Distortion in Gasdynamic Lasers
Chapter XI Aerodynamic Windows
11.1 Introduction
11.2 Concepts
11.3 Results
11.4 Summary
Chapter XII Diffusers
12.1 Introduction
12.2 Purpose of the Diffuser
12.3 Diffuser Flow Field
12.4 Normal Shock Recovery
12.5 Area Ratio
12.6 Drop-Out Pressure
12.7 Summary
Appendix A Effect of Uncertainties in the Kinetic Rates
Appendix B Vibrational Relaxation Times for the CO2-N2-H2O OR He System
Appendix C The Teare Effect
References
Index
Product details
Product details
- Edition: 1
- Latest edition
- Published: December 2, 2012
- Language: English
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