TY - GEN
T1 - Two way diffusion model for the recording mechanism in a self developing dry acrylamide photopolymer
AU - Martin, Suzanne
AU - Naydenova, Izabela
AU - Jallapuram, Raghavendra
AU - Howard, Robert G.
AU - Toal, Vincent
PY - 2006
Y1 - 2006
N2 - In our most recent study1 diffusion constants were measured in the simplified monoacrylamide version of a dry acrylamide based photopolymer holographic recording material developed in the Centre for Industrial and Engineering Optics. In this paper we report diffusion constants for the commonly used photopolymer formulation, which also contains the crosslinker bisacrylamide. A physical model for the recording mechanism is proposed which explains the two way diffusion observed in both systems, and is in agreement with much of the previously observed behaviour of the material, particularly in regard to dependence of diffraction efficiency growth on spatial frequency and persistence of holographic gratings under uniform exposure. The model is also supported by direct observation, under a surface profiler, of the boundary between an illuminated and un-illuminated area at the photopolymer surface.
AB - In our most recent study1 diffusion constants were measured in the simplified monoacrylamide version of a dry acrylamide based photopolymer holographic recording material developed in the Centre for Industrial and Engineering Optics. In this paper we report diffusion constants for the commonly used photopolymer formulation, which also contains the crosslinker bisacrylamide. A physical model for the recording mechanism is proposed which explains the two way diffusion observed in both systems, and is in agreement with much of the previously observed behaviour of the material, particularly in regard to dependence of diffraction efficiency growth on spatial frequency and persistence of holographic gratings under uniform exposure. The model is also supported by direct observation, under a surface profiler, of the boundary between an illuminated and un-illuminated area at the photopolymer surface.
UR - http://www.scopus.com/inward/record.url?scp=33749573881&partnerID=8YFLogxK
U2 - 10.1117/12.676501
DO - 10.1117/12.676501
M3 - Conference contribution
AN - SCOPUS:33749573881
SN - 0819463116
SN - 9780819463111
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Holography 2005
T2 - Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information
Y2 - 21 May 2005 through 25 May 2005
ER -