共轭读出法消除光致变色材料全息记录中的相位畸变

Phase Aberration Correction Using Conjugated Wave Reconstruction in Holography of Photochromic Material

采用有机光致变色材料 -吲哚俘精酰胺 /PMMA薄膜作为可擦写全息记录介质 ,建立了一种能消除全息光存储中相位畸变的光路 此光路采用参考光的相位共轭光再现全息图 ,能有效消除物光路中由于光学元件失调和记录材料缺陷引起的相位畸变 。

With organic photochromic material-indolylfulgimide/PMMA film as erase-rewritable holographic recording medium, an experimental setup for correcting the phase aberration in holography is built up. This setup uses the conjugated wave of the reference beam as reconstruction beam, which can effectively correct the phase aberration caused by the mis-adjustment of optical components and the defect on the recording material in the object beam path. It is a useful scheme for obtaining high quality reconstruction image in holographic optical storage.