Phase shifting digital holography implemented with a twisted-nematic liquid-crystal display

Cruz, María-Luisa; Castro, Albertina; Arrizón, Víctor

doi:10.1364/ao.48.006907

Cited by 11 publications

(5 citation statements)

References 18 publications

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“…In digital holography, methods based on various phase-shifting techniques that compute complex holograms have been reported recently [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. These complex holograms record wavefront information of the optical field propagated from an object under measurement.…”

Section: Introductionmentioning

confidence: 99%

Fully interferometric three-dimensional imaging spectrometry using hyperbolic-type volume interferogram

2013

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A signal-processing method is proposed in the fully interferometric three-dimensional (3D) imaging spectrometry. This processing computes a 3D interferogram, in which recorded fringe patterns do not directly reflect wavefront forms propagated from a polychromatic light source under measurement. This paper presents a procedure for signal processing including a synthesis of the 3D interferogram and retrieval of a set of spectral components of 3D images. We demonstrate retrieving 3D images for spectral components of two planar light sources by means of the proposed method. The procedure to synthesize the 3D interferogram in this method suggests the possibility of direct measurement of the 3D interferogram.

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Section: Introductionmentioning

confidence: 99%

Fully interferometric three-dimensional imaging spectrometry using hyperbolic-type volume interferogram

2013

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“…5b . The modulation elements can be achieved by digital devices such as a digital micromirror device (DMD) or a spatial light modulator (SLM) 50 , and analog methods such as polarization phase shifting 51 , diffraction phase shifting 52 , acousto-optic modulation phase shifting 53 , wavelength phase shifting 54 , tilt phase shifting 55 , etc. The larger phase shifts can be accurately measured by digitally combining images taken at two or more wavelengths 56 .…”

Section: Modern Phase Measurement Methodsmentioning

confidence: 99%

Quantitative phase imaging based on holography: trends and new perspectives

Huang,

Cao

2024

Light Sci Appl

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In 1948, Dennis Gabor proposed the concept of holography, providing a pioneering solution to a quantitative description of the optical wavefront. After 75 years of development, holographic imaging has become a powerful tool for optical wavefront measurement and quantitative phase imaging. The emergence of this technology has given fresh energy to physics, biology, and materials science. Digital holography (DH) possesses the quantitative advantages of wide-field, non-contact, precise, and dynamic measurement capability for complex-waves. DH has unique capabilities for the propagation of optical fields by measuring light scattering with phase information. It offers quantitative visualization of the refractive index and thickness distribution of weak absorption samples, which plays a vital role in the pathophysiology of various diseases and the characterization of various materials. It provides a possibility to bridge the gap between the imaging and scattering disciplines. The propagation of wavefront is described by the complex amplitude. The complex-value in the complex-domain is reconstructed from the intensity-value measurement by camera in the real-domain. Here, we regard the process of holographic recording and reconstruction as a transformation between complex-domain and real-domain, and discuss the mathematics and physical principles of reconstruction. We review the DH in underlying principles, technical approaches, and the breadth of applications. We conclude with emerging challenges and opportunities based on combining holographic imaging with other methodologies that expand the scope and utility of holographic imaging even further. The multidisciplinary nature brings technology and application experts together in label-free cell biology, analytical chemistry, clinical sciences, wavefront sensing, and semiconductor production.

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“…The spatial frequencies (u 0 ,v 0 ) of the RW can be determined, for example, by measuring the center of the object field spectrum term in the hologram Fourier domain (Cruz et al, 2009). The function ⎜H m (u,v) ⎜, corresponding to the new hologram h m (x,y), is displayed in Fig.…”

Section: Reconstruction Of High Bandwidth Objectsmentioning

confidence: 99%

“…However, it is also possible to implement DHM in a lensless setup, where the light field scattered from the object is used instead of its projected image (Wagner et al, 1999;Schnars-Juptner, 2002;Repetto et al, 2004;Cruz et al, 2008;Oh et al, 2010). A conventional setup in DHM is based on the use of an external reference wave (RW), which interferes with the field generated by the object, forming an intensity pattern which is known as hologram of the field (Takeda et al, 1982;Kreis, 1986;Yamaguchi-Zhang, 1997;Yamaguchi et al, 2001;Arrizón-Sanchez, 2004;Liebling, 2004;Quian, 2006;Meneses-Fabian, 2006;Guo, 2007;Cruz et al, 2009). Alternately, it is possible to omit the external RW, with a consequent simplification of the optical setup (Pedrini, 1998;Xu, 2002;Morlens, 2006;Garcia-Sucerquia, 2006;Hwang-Han, 2007;Singh-Asundi, 2009).…”

Section: Introductionmentioning

confidence: 99%