Silver halide masters for transfer into large format dichromated gelatin (DCG) holograms

1998 ◽  
Author(s):  
Fred D. Unterseher ◽  
August Muth ◽  
Rebecca E. Deem
Keyword(s):  
Silver Halide ◽  
Large Format ◽  
Dichromated Gelatin

Development and investigation of dichromated gelatin film for the fabrication of large-format holograms operating at 400-900 nm

1991 ◽  
Author(s):  
Stephan Tropartz ◽  
Olivier Brasseur ◽  
Ruediger Kubitzek ◽  
Christo G. Stojanoff
Keyword(s):  
Gelatin Film ◽  
Large Format ◽  
Dichromated Gelatin

Silver halide reflection noise gratings recorded in dichromated gelatin

1990 ◽  
Vol 77 (2-3) ◽  
pp. 126-128 ◽  
Author(s):  
L.T. Blair ◽  
L. Solymar
Keyword(s):  
Silver Halide ◽  
Dichromated Gelatin

Fabrication of large-format holograms in dichromated gelatin films for sun control and solar concentrators

1997 ◽  
Author(s):  
Christo G. Stojanoff ◽  
Hartmut Schuette ◽  
Jochen Schulat ◽  
Ralf Kubiza ◽  
Philipp Froening
Keyword(s):  
Large Format ◽  
Solar Concentrators ◽  
Gelatin Films ◽  
Dichromated Gelatin

Silver halide noise gratings recorded in dichromated gelatin

1989 ◽  
Vol 73 (4) ◽  
pp. 273-276 ◽  
Author(s):  
L. Solymar ◽  
J.C.W. Newell
Keyword(s):  
Silver Halide ◽  
Dichromated Gelatin

Large-format relief-phase holographic optical elements on dichromated gelatin

1994 ◽  
Author(s):  
Zoya N. Kalyashova ◽  
E. R. Galina ◽  
Y. E. Kusilin ◽  
A. G. Mikhailova ◽  
A. P. Pavlov ◽  
...  
Keyword(s):  
Large Format ◽  
Optical Elements ◽  
Holographic Optical Elements ◽  
Dichromated Gelatin ◽  
Relief Phase

Characterization of defects in tabular silver halide grains

1990 ◽  
Vol 48 (4) ◽  
pp. 1046-1047
Author(s):  
C. Goessens ◽  
D. Schryvers ◽  
J. Van Landuyt ◽  
A. Verbeeck ◽  
R. De Keyzer
Keyword(s):  
Radiation Damage ◽  
Silver Halide ◽  
Chemical Characteristics ◽  
X Ray ◽  
Free Region ◽  
Central Defect ◽  
Crystallographic Defects ◽  
Physical And Chemical ◽  
Two Sides

Silver halide grains (AgX, X=Cl,Br,I) are commonly recognized as important entities in photographic applications. Depending on the preparation specifications one can grow cubic, octahedral, tabular a.o. morphologies, each with its own physical and chemical characteristics. In the present study crystallographic defects introduced by the mixing of 5-20% iodide in a growing AgBr tabular grain are investigated. X-ray diffractometry reveals the existence of a homogeneous Ag(Br1-xIx) region, expected to be formed around the AgBr kernel. In fig. 1 a two-beam BF image, taken at T≈100 K to diminish radiation damage, of a triangular tabular grain is presented, clearly showing defect contrast fringes along four of the six directions; the remaining two sides show similar contrast under relevant diffraction conditions. The width of the central defect free region corresponds with the pure AgBr kernel grown before the mixing with I. The thickness of a given grain lies between 0.15 and 0.3 μm: as indicated in fig. 2 triangular (resp. hexagonal) grains exhibit an uneven (resp. even) number of twin interfaces (i.e., between + and - twin variants) parallel with the (111) surfaces. The thickness of the grains and the existence of the twin variants was confirmed from CTEM images of perpendicular cuts.

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