Super-resolution digital holographic imaging method

Liu, Cheng; Liu, Zhigang; Feng, Bo; Wang, Yong; Zhu, Jianqiang

doi:10.1063/1.1517402

Cited by 109 publications

(53 citation statements)

References 5 publications

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“…The combined hologram then contains larger spectral bandwidth and results in improved resolution. A grating can be used to redirect diffraction components that otherwise would leave the imaging system, and thus increase the resolution of the digital hologram [175,176].…”

Section: Super-resolutionmentioning

confidence: 99%

Principles and techniques of digital holographic microscopy

2010

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Abstract. Digital holography is an emerging field of new paradigm in general imaging applications. We present a review of a subset of the research and development activities in digital holography, with emphasis on microscopy techniques and applications. First, the basic results from the general theory of holography, based on the scalar diffraction theory, are summarized, and a general description of the digital holographic microscopy process is given, including quantitative phase microscopy. Several numerical diffraction methods are described and compared, and a number of representative configurations used in digital holography are described, including off-axis Fresnel, Fourier, image plane, in-line, Gabor, and phase-shifting digital holographies. Then we survey numerical techniques that give rise to unique capabilities of digital holography, including suppression of dc and twin image terms, pixel resolution control, optical phase unwrapping, aberration compensation, and others. A survey is also given of representative application areas, including biomedical microscopy, particle field holography, micrometrology, and holographic tomography, as well as some of the special techniques, such as holography of total internal reflection, optical scanning holography, digital interference holography, and heterodyne holography. The review is intended for students and new researchers interested in developing new techniques and exploring new applications of digital holography. C 2010 Society of Photo-Optical Instrumentation Engineers.

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Section: Super-resolutionmentioning

confidence: 99%

Principles and techniques of digital holographic microscopy

2010

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“…Recently, a new generation of methods is rising up [52,53]. They are based on the combination of diffraction gratings and digital holographic tools.…”

Section: Super Resolution In Digital Holographymentioning

confidence: 99%

“…And finally, a synthetic aperture is generated by digital post-processing that yields in a super resolved imaging. Experimental validation for 1D [52] and 2D [53] cases have been demonstrated.…”

Section: Super Resolution In Digital Holographymentioning

confidence: 99%

Nanophotonics for optical super resolution from an information theoretical perspective: a review

2009

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Abstract. Optical super resolution is one of the most applicable as well as scientifically exciting field of optics dealing with imaging and aiming to improve the spatial resolvable capabilities of any imaging system (digital or ophthalmic) without modifying the optical parameters of the imaging lenses or the geometry of the detection array. Recent developments in nanotechnological fabrication capabilities open new doors of possibilities in fulfilling modified and improved super resolving configurations.Fundamental concepts for obtaining super resolved imaging are related with time, angular, wavelength, polarization and gray levels multiplexing. The state of the art in the field of optical super resolution is reviewed while showing its relation with nanophotonics.

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“…20 This feature has been used in the past for other applications, which include solving the phase unwrapping problem, 9,21 recording ultrafast events using suitable temporal encoding, [22][23][24] and obtaining super-resolution capabilities by synthetically increasing the numerical aperture (NA) of the imaging system. [25][26][27] Although the IDIA principle can be implemented in various holographic and interferometric imaging systems, we implemented this technique by modifying the compact and portable interferometric module recently developed in our group, 6,7 which can be connected directly to the digital camera to turn it into a powerful off-axis interferometric camera with a wider FOV.…”

Section: Introductionmentioning

confidence: 99%

Doubling the field of view in off-axis low-coherence interferometric imaging

2014

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We present a new interferometric and holographic approach, named interferometry with doubled imaging area (IDIA), with which it is possible to double the camera field of view while performing off-axis interferometric imaging, without changing the imaging parameters, such as the magnification and the resolution. This technique enables quantitative amplitude and phase imaging of wider samples without reducing the acquisition frame rate due to scanning. The method is implemented using a compact interferometric module that connects to a regular digital camera, and is useful in a wide range of applications in which neither the field of view nor the acquisition rate can be compromised. Specifically, the IDIA principle allows doubling the off-axis interferometric field of view, which might be narrower than the camera field of view due to low-coherence illumination. We demonstrate the proposed technique for scan-free quantitative optical thickness imaging of microscopic biological samples, including live neurons and a human sperm cell in rapid motion under high magnification. In addition, we used the IDIA principle to perform non-destructive profilometry during a rapid lithography process of transparent structures.

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Super-resolution digital holographic imaging method

Cited by 109 publications

References 5 publications

Principles and techniques of digital holographic microscopy

Principles and techniques of digital holographic microscopy

Nanophotonics for optical super resolution from an information theoretical perspective: a review

Doubling the field of view in off-axis low-coherence interferometric imaging

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