Organic Chiral Spin‐Optics: The Interaction between Spin and Photon in Organic Chiral Materials

Abstract Recently, the spin‐dependent effects in chiral materials are being intensively explored due to requirements of fundamental research and technological applications. In organic chiral materials, there is a strong electron−phonon coupling, which will affect the magnitude of spin polarization. Moreover, the chirality‐generated orbital angular momentum can also affect spin polarization. Thus, the coupling among the electron spin, orbit, lattice, and photon can be effectively enhanced in organic chiral materials, which allows the existence of magneto‐chiral dichroism, chirality‐induced spin selection effects, magnetic field dependence of circularly polarized light emission and transmission. Recent studies on the electron spin and photon interaction in organic chiral materials are presented and understood here, which provides guidance for the future development and application in organic chiral spin‐optics.