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This book discusses the interaction of light with atoms,
concentrating on the semiclassical descriptions of the processes.
It begins by discussing the classical theory of electromagnetic
radiation and its interaction with a classical charged dipole
oscillator. Then, in a pivotal chapter, the interaction with a free
charge is described (the Compton effect); it is shown that, in
order to give agreement with observation, certain quantum rules
must be introduced. The book then proceeds to discuss the
interaction from this point of view-light always being described
classically, atoms described quantum-mechanically, with quantum
rules for the interaction. Subsequent chapters deal with stimulated
emission and absorption, spontaneous emission and decay, the
general problem of light stimulating and being scattered from the
two-state atom, the photoelectric effect, and photoelectric
counting statistics. Finally the author gives a personal view on
the nature of light and his own way of looking at certain
paradoxes. The writing of this book was originally conceived as a
collaboration between the present author and a colleague of former
years, Alan V. Durrant. Indeed, some preliminary exchange of ideas
took place in the mid-1970s. But the problems of joint-authorship
from antipodean positions proved too difficult and the project was
abandoned. I would like to record my indebted ness to him for the
stimulation of this early association. I also acknowledge the
encouragement of my colleagues at the Univer sity of Otago. Special
reference must be made to D. M."
This book discusses the interaction of light with atoms,
concentrating on the semiclassical descriptions of the processes.
It begins by discussing the classical theory of electromagnetic
radiation and its interaction with a classical charged dipole
oscillator. Then, in a pivotal chapter, the interaction with a free
charge is described (the Compton effect); it is shown that, in
order to give agreement with observation, certain quantum rules
must be introduced. The book then proceeds to discuss the
interaction from this point of view-light always being described
classically, atoms described quantum-mechanically, with quantum
rules for the interaction. Subsequent chapters deal with stimulated
emission and absorption, spontaneous emission and decay, the
general problem of light stimulating and being scattered from the
two-state atom, the photoelectric effect, and photoelectric
counting statistics. Finally the author gives a personal view on
the nature of light and his own way of looking at certain
paradoxes. The writing of this book was originally conceived as a
collaboration between the present author and a colleague of former
years, Alan V. Durrant. Indeed, some preliminary exchange of ideas
took place in the mid-1970s. But the problems of joint-authorship
from antipodean positions proved too difficult and the project was
abandoned. I would like to record my indebted ness to him for the
stimulation of this early association. I also acknowledge the
encouragement of my colleagues at the Univer sity of Otago. Special
reference must be made to D. M."
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