Abstract
Photo-induced reversible color change between thermally stable and metastable states of spiropyran molecules can modulate the absorption and refractive index of spiropyran doped polymer films. Thus erasable holograms can be recorded in either stable or metastable states of the spiropyran doped polymer films. Commercially avaibable spiropyran was doped in poly(methyl methacrylate) and thick and thin polymer films were prepared by the gravity settling method. It was found that write and erase cycles can be performed repeatedly. High efficiency erasable holographic recording at either 350 nm or 647 nm was performed in the spiropyran doped poly(methyl methacrylate) films, and a maximum diffraction efficiency about 6% was achieved.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
