When a magnetic material is bombarded with short pulses of laser light, it loses its magnetism within femtoseconds (10 –15 seconds). The spin, or angular momentum, of the electrons in the material ...

Optical vortices are currently one of the most intensively studied topics in optics. These light beams, which carry orbital angular momentum (OAM), have been successfully utilized in the visible and ...

Photons can have half-integer values of angular momentum when they are confined to fewer than three dimensions. That is the conclusion of physicists in Ireland, who have revived an experiment first ...

Single-particle tracking (SPT) is an immensely valuable technique for studying a variety of processes in the life sciences and physics. It can help researchers better understand the positions, paths, ...

Conceptual structure of total angular momentum manipulator: a light beam carrying multiple angular momentum modes passes through the manipulator for filtering. Credit: Li et al., doi ...

(Phys.org) —Researchers in Scotland have devised a way to use the Doppler Effect to discern the spin speed of a rotating object where the object is directly facing the light source. In their paper ...

Pradhan, N., et al. "Signature of Andreev-Bashkin superfluid drag from cavity optomechanics." Physical Review Research 7. (2025): 23051. Print. * Pradhan, N., et al. "Cavity optomechanical detection ...