Two-photon absorption (2PA) is a third-order non-linear optical process in which a molecule simultaneously absorbs two photons of lower energy to reach an excited electronic state. This phenomenon has ...

In a development that could reshape the future of microelectronics, optics, and biomedicine, researchers from Jinan University, in collaboration with the Institute of Chemistry at the Chinese Academy ...

Photonic systems are quickly gaining traction in many emerging applications, including optical communications, lidar sensing, and medical imaging. However, the widespread adoption of photonics in ...

Two-photon absorption (TPA) is a non-linear optical phenomenon in which a molecule simultaneously absorbs two photons, promoting it from the ground to an excited electronic state. Dependent on the ...

Replacing the crystal used for generating entangled photons can significantly increase quantum imaging contrast.

A cutting-edge experiment has revealed the quantum dynamics of one of nature's most crucial processes. Using a complex cast of metal-studded pigments, proteins, enzymes, and co-enzymes, photosynthetic ...

Researchers at Rockefeller University reported in 2016 that human volunteers, after extended dark adaptation, could detect ...

This image depicts the structure of the proposed organic molecule, alongside the energy level diagrams of two-photon absorption (left side) and thermally activated delayed fluorescence (right side).