TUM Library

Cover -- Half Title -- Title Page -- Copyright Page -- Dedication -- Table of Contents -- Introduction -- 1. High-energy HF (DF) Lasers with Non-chain Chemical Reaction (Literature Review) -- 1.1. Chemical HF(DF) lasers. (The Principle of Operation and General Characteristics) -- 1.2. HF (DF) Lasers with the Initiation of Non-chain Chemical Reaction by Electric Discharge -- 1.3. The Problem of Increasing the Energy Characteristics of Non-chain HF Lasers -- 1.4. Search for Methods for SSVD formation in the Working Mixtures of HF(DF) Laser

1.5. P-P Non-chain HF (DF) Lasers with a High Pulse Repetition Rate -- 2. Self-initiated Volume Discharge in Working Environments of Non-chain HF(DF) Lasers -- 2.1. SIVD in Highly Electronegative Gases (Methods of Preparation and Basic Properties) -- 2.1.1. Description of Experimental Facilities and Experimental Techniques -- 2.1.2. General Characteristics of SIVD -- 2.1.3 Effect of UV Illumination on SSVD Characteristics -- 2.1.4. Investigation of the Stability of SIVD in SF[sub(6)] and Mixtures Based on it -- 2.1.5. Dynamics of the Formation of SIVD

2.1.6 Factors Affecting the Spatial Homogeneity of SIVD in SF[sub(6)] Mixtures with Hydrocarbons -- 2.1.7. Influence of the Inhomogeneity of the Electric Field in the Gap on the Stability of SIVD -- 2.2. Numerical Simulation of the SIVD in SF[sub(6)]-based gas Mixtures -- 2.2.1 Calculation of the Characteristics of SIVD in the Working Mixtures of HF Laser -- 2.2.2. Modelling of the Channel Structure of SIVD in SF[sub(6)] and mixtures based on it -- 2.3. Qualitative Analysis of the Mechanisms for Limiting the Current Density in the Diffuse Channel in SF[sub(6)]

3. Effect of Limiting Current Density in the Diffusion Channel -- 3.1. Study of the Characteristics of a single Diffuse Channel in SF[sub(6)] and Mixtures Based on it -- 3.1.1 Description of Experimental Installations and Experimental Techniques -- 3.1.2. Investigation of the Characteristics of a Single Diffuse Channel Unlimited by External Walls -- 3.1.3. Investigation of the Characteristics of the Diffuse Channel Bounded by External Walls -- 3.1.4. Numerical Simulation of Limited SSVD -- 3.1.5. Analysis of the Results

3.2. Characteristics of the SSVD Under Conditions of Strong Population of Vibrationally Excited States of SF[sub(6)] Molecules -- 3.2.1. Experimental Setup and Experimental Methods -- 3.2.2. Determination of CO[sub(2)] Laser Energy Absorbed in the Discharge Gap -- 3.2.3. Investigation of the effect of CO[sub(2)] Laser Radiation on the Combustion Voltage of SSVD in SF and Mixtures based on it -- 3.2.4. The Role of the Electron Attachment Process to Vibrationally Excited SF[sub(6)] Molecules in the Effect of Limiting the Current Density -- 3.2.5. Analysis of the Results

4. Mechanisms of Development of Plasma Instabilities of Self- initiated Volume Discharge in Working Mixtures of Non-chain HF(DF) Lasers

This book explores new principles of Self-Initiating Volume Discharge for creating high-energy non-chain HF(DF) lasers, as well as the creation of highly efficient lasers with output energy and radiation power in the spectral region of 2.6-5 m. Today, sources of high-power lasing in this spectral region are in demand in various fields of science and technology including remote sensing of the atmosphere, medicine, biological imaging, precision machining and other special applications. These applications require efficient laser sources with high pulse energy, pulsed and average power, which makes the development of physical fundamentals of high-power laser creation and laser complexes of crucial importance. High-Energy Ecologically Safe HF/DF Lasers: Physics of Self-Initiated Volume Discharge-Based HF/DF Lasers examines the conditions of formation of SSVD, gas composition and the mode of energy input into the gas on the efficiency and radiation energy of non-chain HF(DF) lasers. Key Features: Shares research results on SSVD in mixtures of non-chain HF(DF) lasers Studies the stability and dynamics of the development of SSVD Discusses the effect of the gas composition and geometry of the discharge gap (DG) on its characteristics Proposes recommendations for gas composition and for the method of obtaining SSVD in non-chain HF(DF) lasers Develops simple and reliable wide-aperture non-chain HF(DF) lasers and investigates their characteristics Investigates the possibilities of expanding the lasing spectrum of non-chain HF(DF) lasers

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