The four-wave mixing process in atomic ensembles has many important applications in
quantum information. We review recent progress on the generation of optical quantum states …

We present in this paper a new scheme for optical interferometry. We utilize coherent-beam-
stimulated two-mode squeezed light, which interacts with a phase shifter and is then …

We theoretically study the phase sensitivity of an SU (1, 1) interferometer with a coherent
state in one input port and a squeezed-vacuum state in the other input port using the method …

An SU (1, 1) interferometer can be realized by replacement of the beam splitters in the Mach-
Zehnder interferometer with parametric amplifiers. This interferometer scheme was …

Optical signals obtained by the material response to classical laser fields are given by
nonlinear response functions which can be expressed by sums over various quantum …

Absorption measurement is an exceptionally versatile tool for many applications in science
and engineering. For absorption measurements using laser beams of light, the sensitivity is …

Stimulated parametric down-conversion is a nonlinear optical process that can be used for
phase conjugation and frequency conversion of an optical field. A precise description of the …

We present a quantum-optics approach for describing stimulated parametric down-
conversion in the two-type-I crystal “sandwich” configuration, which allows for parametric …

Circular dichroism is a widely used technique for investigating optically chiral molecules,
especially for biomolecules. It is thus of great importance that these parameters be estimated …

We re-examine the properties of the states produced by nondegenerate coherently
stimulated parametric down-conversion wherein the signal and idler modes are seeded with …