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US 2006/0235163 A1Published application
Photorefractive composition
OwnerMichiharu Yamamoto, Nasser Peyghambarianinventors
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Abstract
Photorefractive compositions are described. The compositions exhibit the following performances: a) Response time is less than 100 msec.; b) Initial diffraction efficiency is higher than 30%; and c) Grating holding ratio which is defined as [η(4 min.)/η(initial)]×100 is higher than 10%, wherein the η(4 min.) is a diffraction efficiency after 4 minutes and the η(initial) is an initial diffraction efficiency.
Claims8
A photorefractive composition which exhibits the following performances:
- a) Response time is less than 100 msec.;
- b) Initial diffraction efficiency is higher than 30%;
- and
- c) Grating holding ratio which is defined as [η(4 min.)/η(initial)]×100 is higher than 10%, wherein the η(4 min.) is a diffraction efficiency after 4 minutes and the η(initial) is an initial diffraction efficiency.
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Dependencies are inferred from the claim text.