Methylene-blue-sensitized dichromated gelatin holograms with antihumidity polymer coatings.
An efficient method of resisting humidity for methylene-blue-sensitized dichromated gelatin (MBDCG) holograms is reported. The method uses a viscous liquid pure poly(styrene) solution with a low degree of polymerization as the coating material. On the basis of this coating, the diffraction efficiency of treated MBDCG holograms exposed to a high-humidity (relative humidity of 80-85%) environment was not obviously changed during observation over 3 mon.
Ketai
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W
Lurong
G
G
Jianhua
Z
Z
Weiping
Z
Z
Jiyaueo
T
T
Lin
P
P