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Continuous-wave terahertz self-referencing digital holography based on Fresnel's mirrors

机译:基于菲涅耳镜的连续波Terahertz自引用数字全息术

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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. (C) 2020 Optical Society of America
机译:连续波太赫兹数字全息(TDH)是在线和Mach-Zehnder脱轴几何形状中验证的蓬勃发展的全场相位对比度成像方法。 在这封信中,基于菲涅耳的镜子提出了一种自引用TDH方法,通过该镜子,对象波前是分区和反射的。 两个光束彼此干扰以形成轴外全息图。 所提出的记录配置从叠加的双图像免疫,并且具有比Mach-Zehnder干涉仪更高的时间稳定性。 为了评估相位对比成像性能,测量不同类型的样品。 (c)2020美国光学学会

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