Deoxyribonucleic acid-based photochromic material for fast dynamic holography

Abstract

The authors report on a biopolymeric material made of deoxyribonucleic acid ͑DNA͒ complexed with the cationic surfactant cetyltrimethyl-ammonium ͑CTMA͒ and doped with the photochromic disperse red 1 dye ͑DR1͒ for dynamic holographic recording. The molar ratio of the DNA-CTMA to the dye is about 5:1. They have found that the photochromic properties of DR1 in the DNA-CTMA matrix are favorably modified in speed of response with respect to conventional polymeric matrices. Dynamic holographic gratings which were inscribed in DR1:DNA-CTMA films are characterized by switching times within a 1-10 ms range. An excellent reversibility of the recording process is reported.

Holograms in Albumins and Optical Properties Recorded in Real Time

“…This study also aimed to discover and study new substances with different types of proteins containing in the albumins for the manufacture of volume transmission holograms. Through more research, these substances will compete with the already reported results [21]- [23].…”

Isomerization and optical bistability of DR1 doped organic–inorganic sol–gel thin film

“…e l s e v i e r . c o m / l o c a t e / o p t m a t used for the investigation of fast response, such as all-optical switching [24][25][26]. Here, in order to explore the potential of DR1 to be attractive for optical memory applications, the short lifetime of the cis state should be enhanced by doping it into proper solid matrix to slow down the rate of the cis-trans isomerization.…”

Laser inscription of surface structures and induction of optical anisotropy in azo-benzene substituted photochromic polymers and other systems

“…However, investigated azo-polymers are different and their behavior under the same illumination conditions can differ depending on specific material properties and chemistry (type of bonds, way of substitutions and different azo-chromophores) involved. Various groups of materials containing azo-benzene derivative molecules have also been investigated including glasses [13], liquid crystalline polymers [14,15], biopolymers [16][17][18][19], liquid crystals [20][21], Langmuir-Blodgett-Kuhn structures [22,23], layer-by-layer films [ 24,25] monolayers [26,27] and even nano-objects [28,29]. Particularly interesting is light-induced macroscopic polymer mass transport discovered initially for azo-substituted polymers [30,31].…”