Fast dynamic holographic recording based on conductive ionic metal-alkanoate liquid crystals and smectic glasses.
Recordings of dynamic holograms with microsecond relaxation times under the action of nanosecond laser pulses are obtained in composites on the base of a novel class of liquid crystals (LCs) in ionic metal-alkanoates. Holographic parameters and relaxation characteristics are measured for doped lyotropic ionic LC, for sandwichlike cells (consisting of a dye layer and a layer of the lyotropic ionic LC), and for colored ionic smectic glasses. The structure of the materials is investigated by use of the small-angle x-ray technique. The mechanism of resonance nonlinearity in photosensitive centers and mechanisms of the grating erasure connected with a charge transport in the ionic conductive LC matrix are discussed.
Klimusheva
G
G
Institute of Physics of the National Academy of Sciences of Ukraine, Kiev, Ukraine. klimush@iop.kiev.ua
Bugaychuk
S
S
Garbovskiy
Yu
Y
Kolesnyk
O
O
Mirnaya
T
T
Ishchenko
A
A