Two-photon emission is a relatively weak emission process, about five orders of magnitude weaker than the usual single-photon emission that occurs in semiconductor lasers or LEDs. So we had to use ...

Conventional optical technologies store data on the surface of a recording medium. Two-photon technology, which relies on overlapping light beams, can be used for three-dimensional multilayer ...

Shiri Bibas and her two young, red-headed sons have come to symbolize the terror Israeli hostages have faced since they were kidnapped by Hamas militants on Oct. 7 ...