Purple membrane-polyacrilamide films as holographic recording materials.
The holographic parameters of purple membrane-polyacrylamide films obtained from a mutant form of Halobacterium salinarum (originally Halobacterium halobium) were measured. The synthesized films have an absorption of around 2.5 at 532 nm and a pH of 8.65. The results show that diffraction efficiencies of about 1.2 % (measured at 633 nm) can be achieved with writing intensities in the range of 200-400 mW/cm2 (532 nm), and these values remain constant after saturation. Pump-probe experiments were also used to measure the M state lifetime and our PM films were found to have the lowest M state lifetime described at this pH.
Fimia
Antonio
A
Acebal
P
P
Murciano
A
A
Blaya
S
S
Carretero
L
L
Ulibarrena
M
M
Aleman
R
R
Gomariz
M
M
Meseguer
I
I