Problems in Laser PhysicsThere is hardly any book that aims at solving problems typically encountered in the laser field, and this book intends to fill the void. Following some initial exercises related to general aspects in laser physics (Chapt. 1), the subsequent problems are organized along the following topics: (i) Interaction of radiation with matter either made of atoms or ions, weakly interacting with surrounding species, or made of more complicated elements such as molecules or semiconductors (Chapters 2 and 3). (ii) Wave propagation in optical media and optical resonators (Chapters 4 and 5). (iii) Optical and electrical pumping processes and systems (Chapter 6): (iv) Continuous wave and transient laser behaviors (Chapters 7 and 8). (v) Solid-state, dye, semiconductor, gas and X-ray lasers (Chapters 9 and 10). (vi) Proper ties of the output beam and beam transformation by amplification, frequency conversion and pulse compression or expansion (Chapters 11 and 12). Problems are proposed here and solved following the contents of Orazio Svelto's Principles of Lasers (fourth edition; Plenum Press, New York, 1998). Whenever needed, equations and figures of the book mentioned above are currently used with an appropriate reference [e. g. , Eq. (1. Ll) of the book is referred to as Eq. (Ll. 1) of PL]. One can observe, however, that the types of problems proposed and discussed are of general validity and many of these problems have actually been suggested by our own long-time experience in performing theoretical and experimental researches in the field. |
Contents
| 1 | |
Interaction of Radiation with Atoms and Ions | 17 |
Energy Levels Radiative and Nonradiative Transitions | 47 |
50 | 51 |
Ray and Wave Propagation through Optical Media | 75 |
Passive Optical Resonators | 105 |
26 | 119 |
Pumping Processes | 135 |
Continuous Wave Laser Behavior | 155 |
Transient Laser Behavior | 187 |
SolidState Dye and Semiconductor Lasers | 215 |
Gas Chemical FreeElectron and XRay Lasers | 239 |
Properties of Laser Beams | 255 |
Propagation Amplification | 277 |
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Common terms and phrases
ABCD matrix absorption coefficient active medium amplifier amplitude aperture Assuming atoms bandwidth beam waist calculate cavity mode cm² cm³ coherence conduction band Consider constant corresponding crystal D₁ diameter difficulty higher diffraction distance electric field electron end mirrors energy equation expression focal length four-level laser g₁ GaAs gain medium gaussian beam He-Ne laser intensity interferometer laser transition lens lifetime linewidth longitudinal modes longitudinally pumped M₁ mode-locked molecule N₁ N₂ Nd:YAG laser obtain optical system oscillating output coupler output coupling output plane output power parameter peak phase photon population inversion previous problem propagation pulse duration pump efficiency pump rate Q-switched quasi-Fermi levels R₁ R₂ refractive index rotational semiconductor single pass slope efficiency spot size spot sizes stimulated emission thin lens threshold pump power upper laser level valence band w₁ wave wavelength