Reversible holographic grating formation in polymer solutions.
We demonstrate the reversible optical recording of holographic gratings in nonabsorbing solutions of common homopolymers. These phase gratings exhibit first-order diffraction efficiencies in excess of 50%. They are associated with the spatial modulation of the concentration of the polymer solute initiated, but not solely caused, by radiation forces.
Loppinet
Benoit
B
F.O.R.T.H., Institute of Electronic Structure and Laser, P. O. Box 1527, 71110 Heraklion, Greece. benoit@iesl.forth.gr
Somma
Elvira
E
Vainos
Nikos
N
Fytas
George
G