Author Affiliations
Abstract
National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
We design and demonstrate a type of multiplexed hologram by nanoscatterers inside a dielectric-loaded plasmonic waveguide with guided-wave illuminations. The mode division multiplexed hologram (MDMH) is fulfilled by the scattering of guided waves to free space with respect to different modes. According to different mode numbers, these guided modes have different responses to the multiplexed hologram, and then give rise to different holographic images in reconstructions. In experiments, we show two kinds of MDMHs based on TM0/TE0 and TE0/TE1 modes as examples. Our approach could enrich the holography method that favors on-chip integration.
090.4220 Multiplex holography 050.1970 Diffractive optics Chinese Optics Letters
2018, 16(7): 070901
Author Affiliations
Abstract
1 College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
2 College of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, China
An algorithm is proposed for the fast reconstruction of off-axis digital holograms based on a combination of complex encoding (CE) and spatial multiplexing (SM). In this algorithm, every two off-axis holograms recorded in sequence are first assembled into a CE hologram using the CE method, and then four of the CE holograms are again encoded into one complex spatial multiplexing (CSM) hologram based on the SM algorithm. It is demonstrated that the eight holograms encoded into such one CSM hologram can be quickly reconstructed by performing a two-dimensional (2D) Fourier transform (FT) on the CSM hologram. Using this method, the eight 2D FTs required for the reconstruction of the eight holograms in the conventional spatial filtering methods can be simplified to a process with only one 2D FT, which can largely improve the computation efficiency with the resolution of the reconstructed images nearly unchanged.
090.1995 Digital holography 090.4220 Multiplex holography 200.3050 Information processing Chinese Optics Letters
2016, 14(6): 060902
Author Affiliations
Abstract
In this letter, the method of direct object-image relationship in normal-view disk-type multiplex holography is adopted for theoretical analysis. The corresponding parameters in hologram fabrication and reconstruction process for both virtual-image and real-image generation are also introduced through numerical simulation and experimental results.
090.0090 Holography 090.4220 Multiplex holography 090.2870 Holographic display Chinese Optics Letters
2011, 9(12): 120003
Author Affiliations
Abstract
Fulgide, a kind of thermally irreversible photochromic compound, can be used for polarization holographic recording owing to its photoinduced anisotropy and photochromic property under the irradiation of linear polarization light. In this letter, a new technique of optical image operation based on the polarization multiplexing scheme in the fulgide film is demonstrated, which can implement the readout of two individual orthogonal polarized images separately and the subtraction or summation of the two images by simply rotating a polarizer in front of the charge-coupled device (CCD) detector.
160.2900 Optical storage materials 310.5448 Polarization, other optical properties 090.4220 Multiplex holography 100.1930 Dichroism Chinese Optics Letters
2011, 9(s1): s10302
1 南京航空航天大学应用光学研究室, 南京 210016
2 徐州师范学院物理系, 徐州
3 苏州建筑职工大学, 苏州 215006
提出并实现了用一般He-Ne激光器记录的大景深多重全息术.这种技术是根据光源时间相干性的特点,在参考光上作光路补偿来扩大景深,并用旋转光楔调制两平面参考波,记录大景深物场的多重全息图.这是一种重像数可以选择的大景深多重全息术.文中给出理论分析和实验结果,理论分析与实验结果是吻合的.文中还提出了用旋转光楔实现多路多参考光编码记录的多通道大景深全息干涉计量术.这种技术可用于研究大景深物场的时间序列动态过程。
多重全息术 大景深多重全息术 光路补偿 旋转光楔
1 南京航空学院物理系, 南京 210016
2 洛阳光电技术发展中心, 洛阳 471009
本文提出一种新颖的多重全息术,它是利用旋转光楔调制平面参考波的传播方向,实现编码参考光记录获得多重全息图.该全息图经球面波再现,获得位于同一平面内的再现多重象.文中给出了这种方法的理论分析和实验结果,两者是吻合的.
旋转光楔 多重全息图
