1. Introduction
2. Field quantization
3. Coherent states
4. Emission and absorption of radiation by atoms
5. Quantum coherence functions
6. Beam splitters and interferometers
7. Nonclassical light
8. Dissipative interactions and decoherence
9. Optical test of quantum mechanics
10. Experiments in cavity QED and with trapped ions
11. Applications of entanglement: Heisenberg-limited interferometry and quantum information processing
Appendix A. The density operator, entangled states, the Schmidt decomposition, and the von Neumann entropy
Appendix B. Quantum measurement theory in a (very small) nutshell
Appendix C. Derivation of the effective Hamiltonian for dispersive (far off-resonant) interactions
Appendix D. Nonlinear optics and spontaneous parametric down-conversion.