Closed-Form Solution to Rate Equations for an F Plus H2 Laser Oscillator

Chemical lasers pumped by the reaction of atomic fluorine with molecular hydrogen emit power from rotation-vibration transitions of excited HF with upper levels as high as v=3. Collisional processes compete with stimulated emission for the energy of the excited HF. A simplified analysis is presented...

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Bibliographic Details
Main Authors: Emanuel, George, Whittier, James S
Format: Report
Language:English
Subjects:
Atomic and Molecular Physics and Spectroscopy
ATOMS
CHEMICAL LASERS
COLLISIONS
ENERGY TRANSFER
FLUORIDES
FLUORINE
FLUORINE ATOMS
GAS LASERS
HYDROGEN
HYDROGEN FLUORIDE LASERS
Lasers and Masers
MOLECULAR ENERGY LEVELS
MOLECULAR VIBRATION
REACTION KINETICS
VIBRATION
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Summary:Chemical lasers pumped by the reaction of atomic fluorine with molecular hydrogen emit power from rotation-vibration transitions of excited HF with upper levels as high as v=3. Collisional processes compete with stimulated emission for the energy of the excited HF. A simplified analysis is presented here for intensity, energy, and chemical efficiency of a class of such lasers. Results are obtained in closed form. A comparison with more exact computer solutions establishes the validity of the analysis despite its simplifications. A comprehensive parametric study examines the relative importance of initial conditions, optical cavity parameters, and rate coefficients for pumping and deactivation reactions.