TY  - JOUR
A1  - Jelken, Joachim
A1  - Henkel, Carsten
A1  - Santer, Svetlana
T1  - Polarization controlled fine structure of diffraction spots from an optically induced grating
T2  - Applied physics letters
N2  - We report on the remote control of the fine structure of a diffraction spot from optically induced dual gratings within a photosensitive polymer film. The material contains azobenzene in the polymer side chains and develops a surface relief under two-beam holographic irradiation. The diffraction of a polarized probe beam is sensitive to the orientation of the azobenzene groups forming a permanently stored birefringence grating within the film. We demonstrate that the fine structure of the probe diffraction spot switches from a Gaussian to a hollow or a hollow to a "Saturn"-like structure by a change in polarization. This makes it potentially useful in photonic devices because the beam shape can be easily inverted by an external stimulus.
Y1  - 2020
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/57095
SN  - 0003-6951
SN  - 1077-3118
VL  - 116
IS  - 5
PB  - American Institute of Physics
CY  - Melville
ER  -