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 ...

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 ...

A new dual-comb LiDAR technique creates micron-scale 3D images of tiny metal objects, enabling precise non-contact inspection ...

Researchers at Kyushu University have developed a novel organic molecule that simultaneously exhibits two highly sought-after properties: efficient light emission suitable for advanced displays and ...

Two-photon microscopy is a type of fluorescence microscopy that, rather than exciting the sample with a single photon, makes use of multiple photons. The advantage over more traditional one-photon ...