Titlebook: Semiconductor Optics 1; Linear Optical Prope Heinz Kalt,Claus F. Klingshirn Textbook 2019Latest edition Springer Nature Switzerland AG 2019

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Phonon Polaritonsemonstrate that the optical properties of phonons in semiconductors are well explained in the framework of the polariton model of Chap. .. We will discuss the optical properties related to phonon polaritons like the phonon stop band and how to determine them via Fourier transform infrared spectrosco

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Phonons in Solids of Perturbed Lattice Periodicityystals with a random distribution of atoms on lattice sites (alloys) or for local deviations from periodicity (defects). We also consider the situation of reduced periodicity in layered structures like superlattices and quantum wells. Finally we address confinement of phonons in quantum dots.

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Semiconductor Bandstructurel give a short review of some basic approaches to theoretically treat the bandstructure starting, e.g., from free electrons or from atomic orbitals, including the basic concepts of . perturbation theory. With this understanding of the general properties of bandstructures we then take a look at some

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Optical Band-to-Band Transitionseen various bands of the band structure. We will describe here the theoretical approach to treat these transitions arriving finally at an expression for the absorption coefficient. We will introduce the joint density of states and its critical points leading to prominent structures (van Hove-singula

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