Chapter 1. Introduction: This introductory chapter consists of an outline of the fundamental concepts and ideas on
which the text is based, including the rather limited prerequisites so that the reader can follow it and, finally, some hints
about its contents.
Chapter 2. Maxwell’s Equations, Photons and the Density of States: In this chapter we consider Maxwell’s equations
and what they reveal about the propagation of light in vacuum and in matter. We introduce the concept of photons and
present their density of states. Since the density of states is
a rather important property in general and not only for photons, we approach this quantity in a rather general way. We
will use the density of states later also for other (quasi-) particles including systems of reduced dimensionality. In
addition, we introduce the occupation probability of these states for various groups of particles.
Chapter 3: Interaction of Light with Matter: In this chapter we present some basic interaction processes of light with
matter from two different points of view. First we consider matter as a homogeneous medium described by the complex
dielectric function ε(ω) or by the complex index of refraction ˜n(ω) (Sect. 3.1). We concentrate especially on the reflection
and transmission of light at the plane interface between two media. As an especially simple case we investigate the
boundary of matter and vacuum. In the later Sect. 3.2 we will discuss the interaction of the radiation field with individual
atoms. In this case quantum mechanics must be used.
Chapter 4: Ensemble of Uncoupled Oscillators: The optical properties of matter are determined by the coupling of
various types of oscillators in matter to the electromagnetic radiation field. In other words, an incident electromagnetic
field will cause these oscillators to perform driven or forced oscillations. In this chapter, we will consider the optical
properties of an ensemble of oscillators. We begin with the simplest case of uncoupled oscillators and refine the concept
in various steps in next chapters.
Chapter 5: The Concept of Polaritons: In this chapter we want to discuss in more detail what is actually propagating
when“light” travels through matter. In vacuum the situation was quite clear. Light in vacuum is a transverse
electromagnetic wave, the quanta of which are known as photons. The concept of polariton is introduced when “light”
travels through matter.
Chapter 6: Kramers–Kronig Relations: In this chapter we want to investigate some general relations between the real
and imaginary parts of ˜n or ε.
Chapter 7: Crystals, Lattices, Lattice Vibrations and Phonons: In this chapter we start to discuss topics that are
specific to crystalline solids. We discuss the lattice vibrations of crystal solids and introduce the concept of phonons.
Chapter 8: Electrons in a Periodic Crystal: In this chapter we want to discuss the behaviors of electrons in topics that
are specific to crystalline solids. We introduce the concepts of polaron, effective mass, electronic band structure, etc. We
discuss the electronic state of semiconductor quantum structures as quantum wells and quantum dots. We also discuss
the carrier localization due to disorder.
Chapter 9: Excitons, Biexcitons and Trions: In this chapter we introduce the concepts of Exciton, Biexciton and Trion.
We discuss their behaviors in bulk semiconductors and solids with reduced dimensionality.
Chapter 10: Plasmons, Magnons and some Further Elementary Excitations: In this chapter we will briefly address
some other collective excitations in semiconductors and the quasi-particles which result from the quantization of these
excitations like plasmons or magnons.
Chapter 11: Optical Properties of Phonons: In this chapter we will discuss the optical properties of
phonons. We start with the properties of bulk materials, then the properties of materials with reduced dimensionality.
Chapter 12: Optical Properties of Plasmons, Plasmon-Phonon Mixed States and of Magnons: In this chapter we
discuss the optical properties of Plasmons, Plasmon-Phonon Mixed States and of Magnons.
Chapter 13: Optical Properties of Intrinsic Excitons in Bulk Semiconductors: In this chapter we discuss the
essence of semiconductor optics, namely the optical properties of excitons.
Chapter 14: Optical Properties of Bound and Localized Excitons and of Defect States: In this chapter we discuss
the optical properties of defect and localized states in bulk materials, but mention that many of these aspects are also
relevant for the structures of reduced dimensionality presented in the next chapter.
Chapter 15: Optical Properties of Excitons in Structures of Reduced Dimensionality: In this chapter we discuss the
optical properties of excitons in systems of reduced dimensionality such as quantum wells and quantum dots.
Chapter 16: Excitons Under the Influence of External Fields: In this chapter we discuss the behaviors of excitons
under the influence of external fields such as magnetic field and electric field.