• 摘要: 偏光全息中的零再现是指在读取光满足布拉格条件下,再现光的功率却为零的现象。在通常的强度全息中,则没有零再现现象。本文根据张量偏光全息理论预测出实现零再现的条件,并推导了同偏振记录偏光全息的再现光场实现零再现的条件。在实验中,先用两束椭圆偏振光并且干涉角度为136°来记录偏光全息;然后按照理论计算结果,改变参考光的偏振态成为一束特定偏振态,用这一束特定的偏振光进行读取,实现了零再现,验证了理论预测的正确性。

       

      Abstract: When the Bragg condition is satisfied, although the hologram is illuminated by the reading wave, the power of the reconstructed wave may be zero. The above phenomenon is called null reconstruction in polarization holography. In the reconstructing stage of the conventional holography, as long as the reading wave that satisfies the Bragg condition illuminates the hologram, the reconstructed wave is generated, and the null reconstruction is not possible. In this paper, the light field of the reconstructed waves recorded by the same elliptically polarized waves in polarization holography is deduced, which is based on the tensor polarization holography theory. The conditions for achieving null reconstruction are given. In the recording stage of the experiment, elliptically polarized waves were used, and the recording angle was 136°. In the reconstructing stage, the polarization state of the reading wave is set in advance, and the specific polarized wave was used for reconstruction. The experimental results are in good agreement with the theoretical derivation.