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Applied Sciences
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Digital Holography: Advancements, Applications, and Challenges
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Digital Holography: Advancements, Applications, and Challenges

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (20 April 2025) | Viewed by 5475

Special Issue Editors

Dr. Amalia Martínez-García

E-Mail Website
Guest Editor
Centro de Investigaciones en Óptica A.C., León, Guanajuato, Mexico
Interests: optical metrology; speckle pattern interferometry; structured light; interference microscopy; holography; polarization techniques
Dr. Miguel León-Rodríguez

E-Mail Website
Guest Editor
Departamento de Ingeniería en Robótica, Universidad Politécnica de Guanajuato, Cortazar C.P. 38496, Mexico
Interests: digital holographic microscopy; micro-topography measurement; portable optical design device

Special Issue Information

Dear Colleagues,

The reconstruction of an image in three dimensions, giving the sensation of relief, is one of the most spectacular and best-known achievements of holography, but there are many other applications in different areas. Holographic interferometry, holographic optical elements, holographic memories, optical information processing, computer-generated holograms, digital holography and security holograms are just a small sample of the numerous scientific and technical applications based on the holographic method. At present, holography is not only limited to the visible spectrum, but holograms can also be made using waves from other regions of the electromagnetic spectrum, thus giving rise to infrared, ultraviolet, microwave or X-ray holography; additionally, new areas in the field, such as acoustic holography, electron holography and neutron holography have also been developed. Finally, holography has found applications in disciplines like engineering and medicine for non-destructive testing and medical imaging.  

This Special Issue is centered on digital holography and its wide range of applications. Topics of interest include, but are not limited to:

  • Biomedical imaging;
  • 3D metrology;
  • Data storage;
  • Augmented reality;
  • Security and authentication;
  • Art and cultural preservation;
  • Novel algorithms for holographic image reconstruction;
  • Innovations in holographic microscopy for medical diagnosis;
  • Advances in holographic data storage technology;
  • Miniaturized holographic devices for consumer applications;
  • Integration with Artificial Intelligence and machine learning for data analysis.

Dr. Amalia Martínez-García
Dr. Miguel León-Rodríguez
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • optical metrology
  • digital holography
  • holographic interferometry
  • holographic microscopy

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Published Papers (4 papers)

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Research

11 pages, 2534 KiB  
Article
Holographic Lens Array for Solar Collector with Large Angle and Expanded Spectral Width
by Changyu Wang, Yuan Xu, Hong Xu and Juan Liu
Appl. Sci. 2025, 15(10), 5354; https://doi.org/10.3390/app15105354 - 11 May 2025
Viewed by 185
Abstract
Holographic optical elements (HOEs) are promising for solar energy collection due to their advantages of lightweight and high efficiency, but the narrow reconstruction of their angular and spectral widths limits their application. This paper proposes a novel holographic lens array solar collector (HLASC), [...] Read more.
Holographic optical elements (HOEs) are promising for solar energy collection due to their advantages of lightweight and high efficiency, but the narrow reconstruction of their angular and spectral widths limits their application. This paper proposes a novel holographic lens array solar collector (HLASC), which can collect light from a large angle range with an expanded spectrum. The large acceptance angle is achieved by a holographic lens array with a large relative aperture. To expand the collection spectral width within a large incident angle, the collection spectrum is spatially allocated within a single lens range. The methods of single-wavelength recording and multi-wavelength reconstruction contribute to the flexible design and simple fabrication of the HLASC. The optical experiment demonstrates that the HLASC can collect the entire visible spectrum in a range greater than 54°. We believe that an expanded reconstruction angle and wavelength will promote the widespread application of HOEs in solar energy collection. Full article
(This article belongs to the Special Issue Digital Holography: Advancements, Applications, and Challenges)
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16 pages, 15800 KiB  
Article
Advancement of the DRPE Encryption Algorithm for Phase CGHs by Random Pixel Shuffling
by Alfonso Blesa and Francisco J. Serón
Appl. Sci. 2025, 15(8), 4120; https://doi.org/10.3390/app15084120 - 9 Apr 2025
Viewed by 292
Abstract
This work presents an optical encryption process for various types of information related to 3D worlds (scenes) or 2D images, utilizing Computer-Generated Holograms (CGHs). It also introduces a modification to the Dual Random Phase Encoding (DRPE) encryption algorithm by incorporating pixel shuffling. This [...] Read more.
This work presents an optical encryption process for various types of information related to 3D worlds (scenes) or 2D images, utilizing Computer-Generated Holograms (CGHs). It also introduces a modification to the Dual Random Phase Encoding (DRPE) encryption algorithm by incorporating pixel shuffling. This proposal enables the use of either a single key for both pixel shuffling and phase mask definition or two independent keys. The latter option is particularly advantageous in applications that require the involvement of two independent agents to retrieve the original plaintext. The dimension of the CGHs determines the size of the keys based on the random generation of values by cryptographically secure algorithms, so the use of arithmetic encryption is proposed for data compression. However, this proposal allows the use of other algorithms described in the literature to generate the shuffle and phase matrices. The complete workflow is described starting from the synthesis of a 3D scene, defined by a mesh of triangles with shape and appearance modeling, or 2D images of any level of geometric or visual complexity using computer graphics; its storage in a CGH, the encryption and decryption process, and finally, the results obtained in the laboratory and by simulation are shown. The similarity between different encryption levels is measured by the Pearson Coefficient to evaluate the results obtained. Full article
(This article belongs to the Special Issue Digital Holography: Advancements, Applications, and Challenges)
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12 pages, 7592 KiB  
Article
Digital 3D Hologram Generation Using Spatial and Elevation Information
by Jumamurod Farhod Ugli Aralov, Oybek Mirzaevich Narzulloev, Matteo Coffin, Philippe Gentet, Leehwan Hwang and Seunghyun Lee
Appl. Sci. 2024, 14(18), 8404; https://doi.org/10.3390/app14188404 - 18 Sep 2024
Viewed by 1766
Abstract
The evolution of cartography poses challenges in representing three-dimensional terrain accurately on traditional two-dimensional maps. Providing an accurate 3D view of the area, coupled with essential geographic information, is vital for rapid and accurate decision-making in emergency management and response. Holography offers a [...] Read more.
The evolution of cartography poses challenges in representing three-dimensional terrain accurately on traditional two-dimensional maps. Providing an accurate 3D view of the area, coupled with essential geographic information, is vital for rapid and accurate decision-making in emergency management and response. Holography offers a promising solution by providing immersive three-dimensional visualizations. The field of hologram mapping, although novel, is still developing. Given its nascent stage, several limitations are evident. This study addresses one such limitation—inaccuracies in distance measurement—by presenting a hologram map that integrates two-dimensional and three-dimensional information. Accurate distance information on maps is critical for operational success. We aimed to improve hologram maps by integrating contour lines. Our approach allows users to measure distances from near-perpendicular angles while viewing 3D features from other perspectives. We review current advancements in hologram mapping, highlight existing limitations, and introduce our innovative solution designed to enhance both accuracy and usability. Our experiment resulted in a hologram map that accurately depicts a 3D environment, integrates contour lines, and allows for distance and slope angle measurements. The hologram map fills the research gap by providing accurate 3D visualization and distance measurement, signifying a major advancement in hologram mapping. Full article
(This article belongs to the Special Issue Digital Holography: Advancements, Applications, and Challenges)
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8 pages, 21672 KiB  
Article
Effect of Near Ultraviolet Radiation on Varroa Destructor Using Digital Holographic Interferometry
by José Luis Silva-Acosta, Tonatiuh Saucedo-Anaya, Fernando Mendoza-Santoyo, María Del Socorro Hernández-Montes, Carlos Guerrero-Mendez, Daniel Gaytán-Saldaña and Bruno Saucedo-Orozco
Appl. Sci. 2024, 14(11), 4938; https://doi.org/10.3390/app14114938 - 6 Jun 2024
Viewed by 1198
Abstract
The incessant threat posed by the Varroa destructor mite to bee colonies has spurred extensive research into control strategies. One of these strategies involves ultraviolet radiation, aiming to harness the damaging effects that this type of radiation induces in arthropods. This study focuses [...] Read more.
The incessant threat posed by the Varroa destructor mite to bee colonies has spurred extensive research into control strategies. One of these strategies involves ultraviolet radiation, aiming to harness the damaging effects that this type of radiation induces in arthropods. This study focuses on investigating the potential influence of near ultraviolet (UVA) radiation on the surface damage incurred by Varroa destructor. To address this inquiry, multiple specimens were continuously irradiated with UVA while digital holograms were recorded. To assess surface damage, these holographic records were processed and analyzed. It was found that exposure to radiation induces subtle swelling, around a few tenths of micrometers, which is more pronounced around the anal shield and genital shield of the mite. These alterations could impact the health and viability of this parasitic mite. This is the first time that the measurement and quantification of this superficial damage is reported, contributing to the understanding of the impact of UVA irradiation on the external structure of the mite. Full article
(This article belongs to the Special Issue Digital Holography: Advancements, Applications, and Challenges)
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