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Inoue K, Anand A, Cho M. Angular spectrum matching for digital holographic microscopy under extremely low light conditions. OPTICS LETTERS 2021; 46:1470-1473. [PMID: 33720214 DOI: 10.1364/ol.416002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
Digital holographic microscopy (DHM) is a future three-dimensional (3D) microscopy due to its high-resolution and high-precision 3D images. Thus, it is getting attention in bioinformatics, semiconductor defect detection, etc. However, some limitations still exist. Especially, high-speed holographic imaging requires high-power lasers, which are difficult to image on highly absorbent or light-sensitive samples. To overcome these issues, we propose a new, to the best of our knowledge, digital hologram recovery algorithm called angular spectrum matching (ASM), which achieves hologram imitation to recover holograms in digital holography at low light intensities. The hologram used for the background phase comparison is recorded without objects; thus, no power limitation is required. The ASM utilizes this background hologram to recover dark holograms. We present experimental results showing improved DHM numerical reconstructions and recovered holograms under extremely low light conditions.
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BANG L, WU H, ZHAO Y, KIM E, KIM N. Depth enhancement of 3D microscopic living-cell image using incoherent fluorescent digital holography. J Microsc 2016; 265:372-385. [DOI: 10.1111/jmi.12510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 10/26/2016] [Accepted: 10/30/2016] [Indexed: 11/29/2022]
Affiliation(s)
- L.T. BANG
- School of Electrical Engineering and Computer Science; Chungbuk National University; 1 Chungdae-ro, Seowon-gu, Cheongju-si Chungbuk Korea
| | - H.Y. WU
- School of Electrical Engineering and Computer Science; Chungbuk National University; 1 Chungdae-ro, Seowon-gu, Cheongju-si Chungbuk Korea
| | - Y. ZHAO
- School of Electrical Engineering and Computer Science; Chungbuk National University; 1 Chungdae-ro, Seowon-gu, Cheongju-si Chungbuk Korea
| | - E.G. KIM
- Department of Biochemistry & Medical Research Center, College of Medicine; Chungbuk National University; 1 Chungdae-ro, Seowon-gu, Cheongju-si Chungbuk Korea
| | - N. KIM
- School of Electrical Engineering and Computer Science; Chungbuk National University; 1 Chungdae-ro, Seowon-gu, Cheongju-si Chungbuk Korea
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Study on the deformation of endothelial cells using a bio-inspired in vitro disease model. Microvasc Res 2015; 98:172-82. [DOI: 10.1016/j.mvr.2014.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 12/12/2013] [Accepted: 02/03/2014] [Indexed: 01/12/2023]
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Seo E, Seo KW, Gil JE, Ha YR, Yeom E, Lee S, Lee SJ. Biophysiochemical properties of endothelial cells cultured on bio-inspired collagen films. BMC Biotechnol 2014; 14:61. [PMID: 24984812 PMCID: PMC4085646 DOI: 10.1186/1472-6750-14-61] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 06/26/2014] [Indexed: 11/23/2022] Open
Abstract
Background In this study, we investigated the effect of the extracellular matrix on
endothelial dysfunction by careful observation of human umbilical vein
endothelial cells (HUVECs) cultured on denatured collagen film. Results HUVECs on denatured collagen film showed relatively high surface roughness
compared with normal HUVECs. The expression levels of MMP-1, MMP-2 and CD146
increased in the ECs on denatured collagen film. In addition, we examined
the accumulation of fluorescent beads on HUVEC layers subjected to
circulatory flow. The number of accumulated fluorescent beads increased on
the disorganized HUVEC layers. Conclusions The proposed in vitro study using bio-inspired collagen films could
potentially be used in the size- and ligand-based design of drugs to treat
endothelial dysfunction caused by circulatory vascular diseases.
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Affiliation(s)
| | | | | | | | | | | | - Sang Joon Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, San 31, Hyoja-dong, Nam-Gu, Pohang, Gyeongbuk 790-784, Korea.
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Liu YZ, Dong JW, Pu YY, He HX, Chen BC, Wang HZ, Zheng H, Yu Y. Fraunhofer computer-generated hologram for diffused 3D scene in Fresnel region. OPTICS LETTERS 2011; 36:2128-2130. [PMID: 21633471 DOI: 10.1364/ol.36.002128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A Fraunhofer computer-generated hologram (CGH) is proved to be valid in display for three-dimensional (3D) objects from the Fresnel to the far-field region without a Fourier lens for reconstruction. To quickly compute large and complicated 3D objects that consist of slanted diffused surfaces in the Fresnel region, a Fraunhofer-based analytical approach using a basic-triangle tiling diffuser is developed. Both theoretical and experimental results reveal that Fraunhofer CGH can perform the same effects as Fresnel CGH but require less calculation time. Impressive 3D solid effects are achieved in the Fresnel region.
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Affiliation(s)
- Yuan-Zhi Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen (Zhongshan) University, 510275, Guangzhou, China
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Jeon Y, Hong CK. Optical section imaging of the tilted planes by illumination-angle-scanning digital interference holography. APPLIED OPTICS 2010; 49:5110-5116. [PMID: 20856285 DOI: 10.1364/ao.49.005110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A new method of optical imaging that can generate the section images of arbitrarily tilted planes has been developed from illumination-angle-scanning digital interference holography. A set of complex object fields are reconstructed from the holograms captured as the illumination angle is varied with uniform intervals. After the complex fields are modified with phase ramps that match the tilt (relative to the hologram plane) of a desired observation plane, the image of the object sliced along the tilted plane is obtained from their superposition. The axial resolution of a system employing this method is measured with a step height standard, and it is applied to the tomographic inspection of a microelectromechanical system.
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Affiliation(s)
- Yunseong Jeon
- Department of Physics, Pohang University of Science and Technology, Pohang, 790-784, Korea
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Salvador M, Prauzner J, Köber S, Meerholz K, Turek JJ, Jeong K, Nolte DD. Three-dimensional holographic imaging of living tissue using a highly sensitive photorefractive polymer device. OPTICS EXPRESS 2009; 17:11834-11849. [PMID: 19582098 DOI: 10.1364/oe.17.011834] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Photorefractive materials are dynamic holographic storage media that are highly sensitive to coherent light fields and relatively insensitive to a uniform light background. This can be exploited to effectively separate ballistic light from multiply-scattered light when imaging through turbid media. We developed a highly sensitive photorefractive polymer composite and incorporated it into a holographic optical coherence imaging system. This approach combines the advantages of coherence-domain imaging with the benefits of holography to form a high-speed wide-field imaging technique. By using coherence-gated holography, image-bearing ballistic light can be captured in real-time without computed tomography. We analyzed the implications of Fourier-domain and image-domain holography on the field of view and image resolution for a transmission recording geometry, and demonstrate holographic depth-resolved imaging of tumor spheroids with 12 microm axial and 10 microm lateral resolution, achieving a data acquisition speed of 8 x 10(5) voxels/s.
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Affiliation(s)
- M Salvador
- Department Chemie, University of Cologne, Luxemburgerstr 116, 50939 Cologne, Germany
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Jeong SJ, Hong CK. Pixel-size-maintained image reconstruction of digital holograms on arbitrarily tilted planes by the angular spectrum method. APPLIED OPTICS 2008; 47:3064-3071. [PMID: 18516128 DOI: 10.1364/ao.47.003064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We present an effective method for the pixel-size-maintained reconstruction of images on arbitrarily tilted planes in digital holography. The method is based on the plane wave expansion of the diffraction wave fields and the three-axis rotation of the wave vectors. The images on the tilted planes are reconstructed without loss of the frequency contents of the hologram and have the same pixel sizes. Our method shows good results in the extreme cases of large tilting angles and in the region closer than the paraxial case. The effectiveness of the method is demonstrated by both simulation and experiment.
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Affiliation(s)
- Seung Jun Jeong
- Department of Physics, Pohang University of Science and Technology, Pohang, South Korea
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Yu L, Pedrini G, Osten W, Kim MK. Three-dimensional angle measurement based on propagation vector analysis of digital holography. APPLIED OPTICS 2007; 46:3539-45. [PMID: 17514314 DOI: 10.1364/ao.46.003539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
We propose what we believe to be a novel method for highly accurate three-dimensional (3D) angle measurement based on propagation vector analysis of digital holography. Three-dimensional rotations in space can be achieved by use of a CCD camera and a multifacet object, which reflects an incident wave into different directions. The propagation vectors of the reflected waves from the object can be extracted by analyzing the object spectrum of the recorded hologram. Any small rotation of the object will induce a change in the propagation vectors in space, which can then be used for 3D angle measurement. Experimental results are presented to verify the idea.
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Affiliation(s)
- Lingfeng Yu
- Institut für Technische Optik, Universität Stuttgart, Pfaffenwaldring 9, Stuttgart, Germany.
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Colomb T, Montfort F, Kühn J, Aspert N, Cuche E, Marian A, Charrière F, Bourquin S, Marquet P, Depeursinge C. Numerical parametric lens for shifting, magnification, and complete aberration compensation in digital holographic microscopy. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2006; 23:3177-90. [PMID: 17106474 DOI: 10.1364/josaa.23.003177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The concept of numerical parametric lenses (NPL) is introduced to achieve wavefront reconstruction in digital holography. It is shown that operations usually performed by optical components and described in ray geometrical optics, such as image shifting, magnification, and especially complete aberration compensation (phase aberrations and image distortion), can be mimicked by numerical computation of a NPL. Furthermore, we demonstrate that automatic one-dimensional or two-dimensional fitting procedures allow adjustment of the NPL parameters as expressed in terms of standard or Zernike polynomial coefficients. These coefficients can provide a quantitative evaluation of the aberrations generated by the specimen. Demonstration is given of the reconstruction of the topology of a microlens.
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Montfort F, Colomb T, Charrière F, Kühn J, Marquet P, Cuche E, Herminjard S, Depeursinge C. Submicrometer optical tomography by multiple-wavelength digital holographic microscopy. APPLIED OPTICS 2006; 45:8209-17. [PMID: 17068564 DOI: 10.1364/ao.45.008209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We present a method for submicrometer tomographic imaging using multiple wavelengths in digital holographic microscopy. This method is based on the recording, at different wavelengths equally separated in the k domain, in off-axis geometry, of the interference between a reference wave and an object wave reflected by a microscopic specimen and magnified by a microscope objective. A CCD camera records the holograms consecutively, which are then numerically reconstructed following the convolution formulation to obtain each corresponding complex object wavefront. Their relative phases are adjusted to be equal in a given plane of interest and the resulting complex wavefronts are summed. The result of this operation is a constructive addition of complex waves in the selected plane and destructive addition in the others. Tomography is thus obtained by the attenuation of the amplitude out of the plane of interest. Numerical variation of the plane of interest enables one to scan the object in depth. For the presented simulations and experiments, 20 wavelengths are used in the 480-700 nm range. The result is a sectioning of the object in slices 725 nm thick.
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Affiliation(s)
- Frédéric Montfort
- Institut d'Optique Appliquée, Ecole Polytechnique Fédérale de Lausanne, Switzerland.
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Yu L, Kim MK. Pixel resolution control in numerical reconstruction of digital holography. OPTICS LETTERS 2006; 31:897-9. [PMID: 16599204 DOI: 10.1364/ol.31.000897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A new method for resolution control in numerical reconstruction of digital holography is proposed. The wave field on a tilted or vertical plane can be reconstructed without being subject to the minimum object-to-hologram distance requirement, and the pixel resolution can be easily controlled by adjusting the position of a transitional plane. The proposed method solves the problem of pixel resolution control for small object-to-hologram distances and is especially useful for multicolor, multiwavelength digital holography and metrological applications. Experimental results are presented to verify the idea.
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Affiliation(s)
- Lingfeng Yu
- Deptment of Physics, University of South Florida, Tampa, Florida 33620, USA.
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Picart P, Leval J, Pascal JC, Boileau JP, Grill M, Breteau JM, Gautier B, Gillet S. 2D full field vibration analysis with multiplexed digital holograms. OPTICS EXPRESS 2005; 13:8882-92. [PMID: 19498921 DOI: 10.1364/opex.13.008882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Opportunities for full field 2D amplitude and phase vibration analysis are presented. It is demonstrated that it is possible to simultaneously encode-decode 2D the amplitude and phase of harmonic mechanical vibrations. The process allows the determination of in plane and out of plane vibration components when the object is under a pure sinusoidal excitation. The principle is based on spatial multiplexing in digital Fresnel holography. Experimental results are presented in the case of an industrial application.
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