title: 14-Fluoro-bacteriorhodopsin gelatin films for dynamic holography recording.
abstract: The first dynamic holography recording using 14-fluoro-(14-F) bacteriorhodopsin (BR) gelatin films has been achieved. 14-F BR is an artificial BR pigment made by reconstitution of bacterioopsin (native BR without chromophore) with synthetic 14-F retinal. Low-intensity red light from a cw He-Ne laser was used for dynamic holography recording on the 14-F wild type (WT) BR and 14-F D96N mutant BR in gelatin films. There is not true comparing the diffraction efficiency for 14-F D96N BR and 14-F WT gelatin film, unlike the increased diffraction efficiency for D96N BR gelatin film with native chromophore relative to the WT BR gelatin film with native chromophore. Pre-illumination with blue light of the 14-F BR gelatin films significantly increases the diffraction efficiency of both the 14-F WT and the 14-F D96N BR pigments. The sequential application of blue and red laser beams indicates that 14-F BR gelatin films can be useful for optical memory.
authors.affiliation: Institute of Physics, National Academy of Sciences, Kiev, Ukraine. elkorch@iop.kiev.ua
authors.forename: Elena
authors.initials: E
authors.lastname: Korchemskaya
authors.forename: Nikolai
authors.initials: N
authors.lastname: Burykin
authors.forename: Angel
authors.initials: A
authors.lastname: de Lera
authors.forename: Rosana
authors.initials: R
authors.lastname: Alvarez
authors.forename: Sergey
authors.initials: S
authors.lastname: Pirutin
authors.forename: Anna
authors.initials: A
authors.lastname: Druzhko
mesh_terms: D001436:Bacteriorhodopsins; D005780:Gelatin; D006696:Holography / Q000379:methods*; D007834:Lasers
chemical_list: C065195:14-fluorobacteriorhodopsin; D001436:Bacteriorhodopsins; D005780:Gelatin