By Weng W. Chow, Stephan W. Koch
This in-depth name discusses the underlying physics and operational rules of semiconductor lasers. It analyzes the optical and digital houses of the semiconductor medium intimately, together with quantum confinement and gain-engineering results. The textual content additionally contains contemporary advancements in blue-emitting semiconductor lasers.
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Extra resources for Semiconductor-Laser Fundamentals
Sample text
Many basic ideas and useful results have not found their way into textbooks, so are little known. Moreover, some basic principles are rarely stated explicitly. The contents are weighted toward the most common type of optical system, that with rotational symmetry consisting of mirrors and / or lens elements of homogeneous materials. There is a section on heterogeneous media, an application of which is gradient index optics discussed in another chapter. The treatment here is mostly monochromatic.
The surface normal and the ray direction define the plane of incidence , which is perpendicular to the vector cross product S r ϭ (M␥ Ϫ N , N␣ Ϫ L␥ , L Ϫ M␣ ) . After refraction or reflection, the outgoing ray is in the same plane. This symmetry is related to the fact that optical path length is an extremum. The laws of reflection and refraction can be derived from Fermat’s principle, as is done in many books. At a planar interface, the reflection and refraction directions are derived from Maxwell’s equations using the boundary conditions.
Because of space limitations, there are too few diagrams. Terminology Because of the complicated history of geometric optics, its terminology is far from standardized. Geometric optics developed over centuries in many countries, and much of it has been rediscovered and renamed. Moreover, concepts have come into use without being named, and important terms are often used without formal definitions. This lack of standardization complicates communication between workers at different organizations, each of which tends to develop its own optical dialect.
