Continuous-wave terahertz digital holography (TDH) is a booming full-field phase-contrast imaging method validated in both in-line and Mach-Zehnder off-axis geometries. In this Letter, a self-referencing TDH approach is proposed based on the Fresnel's mirrors, by which the object wavefront is partitioned and reflected. Two beams interfere with each other to form an off-axis hologram. The proposed recording configuration is immune from a superposed twin image and has higher temporal stability than Mach-Zehnder interferometers. To evaluate the phase-contrast imaging performance, different types of samples are measured.

中文翻译：

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基于菲涅耳镜的连续波太赫兹自参考数字全息术。

连续波太赫兹数字全息术（TDH）是一种蓬勃发展的全场相衬成像方法，已在直线和Mach-Zehnder离轴几何中得到验证。在这封信中，提出了一种基于菲涅耳镜的自参考TDH方法，通过该方法可以划分和反射物体的波前。两束光相互干涉形成离轴全息图。所提出的记录配置不受重叠双像的影响，并且比Mach-Zehnder干涉仪具有更高的时间稳定性。为了评估相衬成像性能，需要测量不同类型的样品。