If you’ve finished a course in electromagnetism and are starting quantum mechanics, this is your next step.
Unlike purely theoretical texts, Loudon’s book focuses on the "basic theory needed to explain experiments in quantum optics". Accessibility: loudon quantum theory of light pdf link
Rodney Loudon's The Quantum Theory of Light is a foundational text in quantum optics, widely valued for bridging the gap between standard quantum mechanics and experimental interpretation. Accessing the PDF You can find the text through various digital repositories: If you’ve finished a course in electromagnetism and
If your library does not own the ebook, request an ILL. The library will scan a physical copy and send you a personal-use PDF of the chapters you need—typically within 1 week. Accessing the PDF You can find the text
The text is designed to transition readers from classical electromagnetic theory to a fully quantized description of light. It begins with foundational concepts that are approachable for advanced undergraduates, such as: