Modern imaging technologies are widely based on classical principles of light or
electromagnetic wave propagation. They can be remarkably sophisticated, with recent …

Quantum imaging is a multifaceted field of research that promises highly efficient imaging in
extreme spectral ranges as well as ultralow‐light microscopy. Since the first proof‐of …

Nearly 30 years ago, two-photon interference was observed, marking the beginning of a
new quantum era. Indeed, two-photon interference has no classical analogue, giving it a …

Abstract Hong–Ou–Mandel (HOM) interference—the bunching of indistinguishable photons
at a beamsplitter—is a staple of quantum optics and lies at the heart of many quantum …

Interference, which refers to the phenomenon associated with the superposition of waves,
has played a crucial role in the advancement of physics and finds a wide range of …

Although electrons and photons are the most widely researched elementary particles, their
interactions outside of the confines of a material are not yet fully explored. Here, we report …

Over the last two decades, integrated photonics has profoundly revolutionized the domain of
quantum technologies. The ongoing second quantum revolution stands as a timely …

Abstract Fluorescence Lifetime Imaging Microscopy in the time domain is typically performed
by recording the arrival time of photons either by using electronic time tagging or a gated …

Quantum metrology can achieve enhanced sensitivity for estimating unknown parameters
beyond the standard quantum limit. Recently, multiple-phase estimation exploiting quantum …

Optical metrology is a well-established subject, dating back to early interferometry
techniques utilizing light's linear momentum through fringes. In recent years, significant …