Introduction to Atomic, Molecular, and Optical Physics

PHYS 4343 — Missouri S&T, Fall 2025

Author

Daniel Fischer

Welcome

These notes accompany the course PHYS 4343 — Introduction to Atomic, Molecular, and Optical (AMO) Physics, taught at Missouri University of Science and Technology (Missouri S&T) in Fall 2025 by Daniel Fischer.

Prerequisites

To benefit most from this course, students are expected to have completed:

  • Mathematics
    • Linear Algebra
    • Calculus (single- and multivariable)
    • Differential Equations
  • Physics
    • Introduction to Classical Mechanics
    • Introduction to Electromagnetism
    • Introduction to Modern Physics

Disclaimer

This lecture is intended as an introductory-level course in AMO physics.
Quantum mechanics is used throughout.

  • A formal course in quantum mechanics is not required, but many ideas and techniques of QM will appear repeatedly.
  • For this reason, a very brief introduction to some quantum mechanical concepts is included.
  • These remarks are not comprehensive and are meant only to provide enough background to follow the AMO applications.

A Few Words about AMO Physics

Atomic, Molecular, and Optical physics is one of the most dynamic areas of modern physics.

  • It connects fundamental quantum concepts with cutting-edge experiments.
  • It has direct applications in laser physics, precision spectroscopy, quantum optics, quantum information, and ultracold matter.
  • AMO physics combines the clarity of well-understood model systems (like the hydrogen atom) with the excitement of current research that pushes the boundaries of technology and fundamental science.

Whether your interest lies in the foundations of quantum theory, the applications in modern technology, or simply the beauty of light–matter interaction, AMO physics offers a rich and fascinating journey.

These notes are living documents — they are intended to support your learning, not to replace textbooks or original research articles. Use them actively, question them, and enjoy exploring the physics of the microscopic world.