Recently, a groundbreaking advancement has been achieved by a research team helmed by Associate Professor Wang Bo and Professor Chen Xianfeng from the School of Physics and Astronomy at Shanghai Jiao Tong University. This team, in a collaborative effort with Professor Erez Hasman of Technion - Israel Institute of Technology, has made remarkable strides in the exploration of intricate nano-optical systems.

For the inaugural time, through experimental observation, they discovered that nanoparticle systems undergoing Brownian motion, after substantial light scattering, are capable of producing a macroscopic optical spin-locking effect. This revelation stands in stark contrast to the conventional wisdom that disordered systems obliterate optical polarization information. Moreover, it unveils a novel mechanism underlying optical spin-orbit coupling.

Furthermore, the research team capitalized on this effect to devise a spin spectroscopy approach for the precise detection of nanoparticle information. This development carries immense significance for the investigation of light information detection and transmission within macroscopic dynamic disordered media.