Quantum entanglement and squeezing have significantly improved phase estimation and
imaging in interferometric settings beyond the classical limits. However, for a wide class of …

Holography is an established technique for measuring the wavefront of optical signals
through interferometric combination with a reference wave. Conventionally the integration …

Infrared (IR) imaging is invaluable across many scientific disciplines, from material analysis
to diagnostic medicine. However, applications are often limited by detector cost, resolution …

The frequency upconversion technique offers an appealing approach for sensitive mid-
infrared (MIR) imaging at room temperature. However, the spatial resolution of the …

Shortwave infrared (SWIR, 1000–1700 nm) absorbing and emitting dyes are needed for
infrared diodes and sensors used in a wide variety of industrial and medical applications …

We present a thorough study of the complexity of optical localized modes in two-dimensional
disordered photonic crystals. Direct experimental measurements of complexity were made …

Two-photon microscopy provides sectioned excitation, but in practical settings, it often
suffers from contrast limitations. Here, we report the observation of a strong acousto-optic …

Stand-off imaging using active illumination is challenging as the intensity of the
backscattered light drops with the square of the distance to the target. Homodyne or …

Quantum imaging with undetected photons: single-frame complex image reconstruction using
off-axis holography Page 1 Quantum imaging with undetected photons: single-frame complex …

Accurate estimation of carrier fringe frequency is essential for the demodulation of off-axis
digital holograms. The fringe frequency is often associated with the amplitude peak of the …