This book, based on classroom-tested lecture notes, provides a
self-contained one semester undergraduate course on quantum optics,
accessible to students (and other readers) who have completed an
introductory quantum mechanics course and are familiar with Dirac
notation and the concept of entanglement. The book covers canonical
quantization, the harmonic oscillator, vacuum fluctuations, Fock states,
the single photon state, quantum optical treatment of the beam splitter
and the interferometer, multimode quantized light, and coherent and
incoherent states. Metrology is a particular area of emphasis, with the
book culminating in a treatment of squeezed light and its use in the
laser interferometer gravitational-wave observatory (LIGO). The
Heisenberg limit is described, along with NOON states and their
application in super-sensitivity, super-resolution and quantum
lithography. Applications of entanglement and coincidence measurements
are described including ghost imaging, quantum illumination, absolute
photodetector calibration, and interaction-free measurement. With
quantum optics playing a central role in the so-called "second quantum
revolution," this book, equipped with plenty of exercises and worked
examples, will leave students well prepared to enter graduate study or
industry.