Influence of the characteristic curve of the material on the diffraction efficiency of holographic volume phase gratings |
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| Authors: | P Markovski T Todorov N Koleva |
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| Institution: | (1) Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, Sofia, Bulgaria |
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| Abstract: | The behaviour of the diffraction efficiency of holographic gratings is discussed on the basis of the multiwave coupled-wave approach, taking into consideration the photoinduced change in the refractive index of the recording medium. The cases of Bragg and off-Bragg reconstruction in Bragg and mixed diffraction are considered. The influence of the higher harmonics of the refractive index modulation profile on the diffraction efficiency is shown. |
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