Methods of optical physics offer unique opportunities for the investigation of brain and higher
nervous activity. The integration of cutting-edge laser technologies and advanced …

The Keldysh photoionization theory is a conceptual cornerstone and a universal framework
for the description of a broad class of fundamental effects in light–matter interaction. Here …

Thermogenetics is a promising innovative neurostimulation technique, which enables robust
activation of neurons using thermosensitive transient receptor potential (TRP) cation …

Seeing the big picture of functional responses within large neural networks in a freely
functioning brain is crucial for understanding the cellular mechanisms behind the higher …

We demonstrate an accurate quantitative characterization of absolute two‐and three‐photon
absorption (2PA and 3PA) action cross sections of a genetically encodable fluorescent …

We present brain imaging experiments on rat cortical areas, demonstrating that, when
combined with a suitable high-brightness, cell-specific genetically encoded fluorescent …

We demonstrate a versatile single‐laser platform for single‐beam dual‐color two‐photon
spectroscopy that combines a short‐pulse laser source with a tunable broadband …

Quantum entanglement is a powerful resource that revolutionizes information science,
opens new horizons in communication technologies, and pushes the frontiers of sensing …

We demonstrate a reconnectable implantable ultraslim fiber‐optic microendoscope that
integrates a branching fiber bundle (BFB) with gradient‐index fiber lenses, enabling a …

We demonstrate stain-free, high-contrast, subcellular-resolution imaging of astroglial cells
using epi-detected third-harmonic generation (THG). The astrocyte-imaging capability of …