Biphotonic process for recording holograms with continuous-wave lasers in the near infrared

Abstract

A new process that permits the recording of holograms produced by laser sources emitting in the near infrared is presented. The recording process involves the sensitization of singlet oxygen and the oxidation of an adapted trap. Finally, a second photon initiates a photopolymerization, which induces changes in refractive index and creates the hologram.