Popescu G. Principles of Biophotonics Vol 3. 2022

Textbook in PDF format

This volume aims to familiarize the reader with basic concepts of light propagation in the simplest class of media: linear, homogenous, dispersionless, and isotropic. After a review of Maxwell's equations in both integral and differential forms, the book describes the field propagation from elementary sources (dipoles) and in free space, in 1D, 2D, and 3D. Next, the material covers diffraction of light by a 2D screen, with various levels of approximations, emphasizing the wavevector space calculations. The ABCD matrix propagation is introduced as an efficient tool for both ray optics and Gaussian beam propagation. The volume ends with a chapter on propagation of field correlations, generalizing the coherence concepts introduced in Volume 1.
Maxwell’s equation in integral form
Maxwell’s equations in differential form
Propagation of electromagnetic fields
Propagation of scalar fields in free space
Diffraction of scalar fields
Geometrical optics
Gaussian beam propagation
Propagation of field correlations