Prefaces are usually written when a manuscript is finished. Having finished this book I can clearly see many shortcomings in it. But if I began to eliminate them I would probably write quite a differe
The optoacoustic method has by now an almost one-centurY-long history of appl ication in spectroscopy, but it was only with the advent of the laser that it became a convenient and effective method amo
Expanded and translated from the 1986 Russian edition by the authors. Attempts to describe the current state and prospects of research in studies conducted on the pressure of laser light on atoms and
