Opt Lett. 2018 Jul 15;43(14):3397-3400. doi: 10.1364/OL.43.003397.
A DC-noise-free on-axis holographic display scheme using a phase-only spatial light modulator (SLM) is proposed. The origin of DC noise in the on-axis holographic display using a phase-only SLM is analyzed, and a DC noise rejection filter is optimized for a phase-only SLM is designed. A novel two-step iterative Fourier transform algorithm for the optimal synthesis of a phase-only computer-generated hologram using the proposed scheme is devised. The proposed scheme and algorithm are validated with numerical simulations and experiments.
提出了一种采用纯相位空间光调制器（SLM）的无直流噪声轴上全息显示方案。分析了采用纯相位 SLM 的轴上全息显示中直流噪声的来源，并设计了一种用于纯相位 SLM 的直流噪声消除滤波器。设计了一种新颖的两步迭代傅里叶变换算法，用于使用所提出的方案对纯相位计算机生成全息图进行最佳合成。该方案和算法通过数值模拟和实验得到了验证。
