一种实现单步相移无透镜傅里叶同轴数字全息的倒频谱技术

潘云; 潘卫清; 晁明举

光学技术, 2012, 38 (1): 40, 网络出版: 2012-04-20

一种实现单步相移无透镜傅里叶同轴数字全息的倒频谱技术

Single phase-shifting lensless Fourier in-line digital holography based on cepstrum technology

论文大纲

潘云 ^1,*潘卫清 ²晁明举 ¹

作者单位

¹ 郑州大学物理工程学院, 郑州 450001

² 浙江科技学院理学院, 杭州 310023

信息光学数字全息相移无透镜傅里叶数字全息倒频谱 information optics digital holography phase-shifting lensless Fourier digital holography cepstrum

摘要

在数字全息技术中无透镜傅里叶同轴数字全息具有高分辨, 再现速度快等优点, 因此有着广泛的应用前景, 但它也存在再现像与直透光场及其共轭像重叠, 较难分离的缺点。针对这一问题, 在分析了无透镜傅里叶同轴数字全息图记录和再现原理的基础上, 提出了单步相移倒频谱技术, 并在理论上分析了该技术对分离出清晰再现像的可能性和该技术适用的关键条件。通过仿真实验进行了验证, 结果表明: 单步相移倒频谱技术能够较好地解决无透镜傅里叶同轴数字全息技术中再现像与直透光场及其共轭像重合这一困难, 得到清晰的再现像; 同时给出了实际实验中单步相移倒频谱技术能够适用的条件参数, 这为后面的进一步实验提供了参考依据。

Abstract

In digital holography, the lensless Fourier in-line digital holography has many advantages, such as high resolution, fast reconstruction, etc., so it has a broad application prospect. But the reconstructed image is hard to be separated, because it is overlapped by the direct wave and its conjugate image. To solve this problem, based on analyzing the holography recording and the numerical reconstructing theory of lensless Fourier in-line digital holography, the single phase-shifting cepstrum technology is proposed. Both possibility of separating a clear reconstructed image and key conditions of this technology are analyzed in theory. Through the simulation experiment, the results show that the single phase-shifting cepstrum technology can solve the overlapping problem well, and get a clear reconstructed image. In addition, the applied conditional parameters of the cepstrum technology are given, which will provide a reference for further experiments.

参考文献

[1] Murata S, Yasuda M. Potential of digital holography in particle measurement［J］. Opt. Laser Technol., 2000, 32(8):567-574.

[2] Coppola G, Ferraro P, Iodice M, et al. A digital holographic microscope for complete characterization of microelectromechanical systems［J］. Meas Sci. Technol., 2004, 15 (3):529-539.

[3] Kühn J, Charrière F, Colomb T, et al. Digital holographic microscopy for nanometric quality control of micro-optical components［J］． SPIE, 2007, 6475: 64750V-1-12.

[4] Marquet P, Rappaz B, Magistretti J, et al. Digital holographic microscopy: a noninvasive contrast imaging technique allowing quantitative visualization of living cells with subwavelength axial accuracy［J］. Opt. Lett., 2005, 30(5):468-470.

[5] Sten A, Javidi B. Theoretical analysis of three-dimensional imaging and recognition of micro-organisms with a single-exposure on-line holographic microscope［J］. J. Opt. Soc. Am. A, 2007, 24(1): 163-168.

[6] Wang X, Zhao D, Jing F, et al. Information synthesis (complex amplitude addition and subtraction) and encryption with digital holography and virtual optics［J］, Opt. Express, 2006, 14(4):1476-1486.

[7] 吕且妮, 葛宝臻, 张以谟.数字同轴和数字离轴全息系统分析［J］. 光电工程, 2005, 32(2): 15-18.

Lv Q N, Ge B Z, Zhang Y M. Analysis of digital in-line and digital off-axis holography［J］, Opto-Electronic Engineering, 2005, 32(2): 15-18.

[8] 刘诚,等.无直透光和共轭像的数字全息［J］. 光学学报, 2002, 22(4): 427-431.

Liu C, et al. Digital holography free of zero-order diffraction and conjugate images［J］. ACTA Optica Sinica, 2002, 22(4): 427-431.

[9] Yu Y J, Zhou W J, et al. Phase-shifting digital holography in image reconstruction［J］. Journal of Shanghai University (English Edition), 2006, 10(1):59-64.

[10] 吕晓旭, 张以谟, 钟丽云,等.相移同轴无透镜傅里叶变换数字全息的分析与实验［J］. 光学学报, 2004, 24(11): 1511-1515.

Lv X X, Zhang Y M, Zhong L Y, et al.. Analysis and experiment of phase-shifting coaxial lensless Fourier digital holography［J］. ACTA Optica Sinica, 2004, 24(11): 1511-1515.

[11] 朱勇建, 李安虎, 潘卫清,等.结构光测量中快速相位解包裹算法的讨论［J］. 光子学报, 2009, 38(1): 184-188.

Zhu Y J, Li A H, Pan W Q, et al. Fast phase-unwrapping algorithms used for structural-light measurement［J］. ACTA Photonica Sinica, 2009, 38(1): 184-188.

[12] Pan W Q, et al. One-shot in-line digital holography based Hilbert phase-shifting［J］. Chinese Optics Letters, 2009, 12(10): 1123-1125.

[13] Zhang Y, Pedrini G, Osten W, et al. Aperiodic photonic quantum-well structures for multiple channeled filtering at arbitrary preassigned frequencies［J］. Opt. Lett, 2004, 29(12): 1787-1792.

潘云, 潘卫清, 晁明举. 一种实现单步相移无透镜傅里叶同轴数字全息的倒频谱技术[J]. 光学技术, 2012, 38(1): 40. PAN Yun, PAN Weiqing, CHAO Mingju. Single phase-shifting lensless Fourier in-line digital holography based on cepstrum technology[J]. Optical Technique, 2012, 38(1): 40.

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