Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
Photopolymers for Holographic Applications
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Photopolymers for Holographic Applications

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (31 January 2016) | Viewed by 14975

Special Issue Editor

Dr. Manuel Francisco Ortuño Sánchez

E-Mail Website
Guest Editor
1. I.U. Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, P.O. Box 99, E-03080 Alicante, Spain
2. Department de Física, Ing. de Sistemas y Teoría de la Señal, Universidad de Alicante, P.O. Box 99, E-03080 Alicante, Spain
Interests: photopolymers; holography; biopolymers; h-pdlc; liquid crystal polymers; light sensitive materials; dyes; micro- and nanoparticles; glass materials; dye chemistry; nano materials; holographic memories; optical microdevices; holographic optical elements
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Holography is an important area with many emerging applications, such as sensors, security holograms, green photonics, holographic data storage, holographic optical elements, dynamic applications, etc. The development of materials for these applications is a key issue. Photopolymers are a type of recording material, which are very interesting in studies related to these novel applications, due to their flexibility, easy preparation, and low cost. The main focus of the “Photopolymers for Holographic Applications” Special Issue is to provide and comprehend important topics, such as the development of new materials for holographic recording and their potential applications in science and engineering. Therefore, novel developments in science and technology, with prospective application in holography, materials development, photopolymerization, or applications will be addressed in this issue.

With immense pleasure, we invite you to submit a manuscript for this Special Issue. Full papers, communications, and reviews are welcome.

Dr. Manuel Ortuño
Guest Editor

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. Materials 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 2600 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

  • holography
  • photopolymers
  • holographic recording materials
  • photopolymerization
  • holographic data storage
  • holographic optical elements
  • holographic sensors
  • green photonics
  • security holograms
  • holographic techniques
  • holographic applications

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

2689 KiB  
Article
Blazed Gratings Recorded in Absorbent Photopolymers
by Roberto Fernández, Sergi Gallego, Andrés Márquez, Víctor Navarro-Fuster and Augusto Beléndez
Materials 2016, 9(3), 195; https://doi.org/10.3390/ma9030195 - 15 Mar 2016
Cited by 11 | Viewed by 4469
Abstract
Phase diffractive optical elements, which have many interesting applications, are usually fabricated using a photoresist. In this paper, they were made using a hybrid optic-digital system and a photopolymer as recording medium. We analyzed the characteristics of the input and recording light and [...] Read more.
Phase diffractive optical elements, which have many interesting applications, are usually fabricated using a photoresist. In this paper, they were made using a hybrid optic-digital system and a photopolymer as recording medium. We analyzed the characteristics of the input and recording light and then simulated the generation of blazed gratings with different spatial periods in different types of photopolymers using a diffusion model. Finally, we analyzed the output and diffraction efficiencies of the 0 and 1st order so as to compare the simulated values with those measured experimentally. We evaluated the effects of index matching in a standard PVA/AA photopolymer, and in a variation of Biophotopol, a more biocompatible photopolymer. Diffraction efficiencies near 70%, for a wavelength of 633 nm, were achieved for periods longer than 300 µm in this kind of materials. Full article
(This article belongs to the Special Issue Photopolymers for Holographic Applications)
►▼ Show Figures

Figure 1

2081 KiB  
Article
Influence of 4,4’-azobis (4-cyanopentanoic acid) in Transmission and Reflection Gratings Stored in a PVA/AA Photopolymer
by Elena Fernandez, Rosa Fuentes, Augusto Belendez and Inmaculada Pascual
Materials 2016, 9(3), 194; https://doi.org/10.3390/ma9030194 - 15 Mar 2016
Cited by 4 | Viewed by 3948
Abstract
Holographic transmission gratings with a spatial frequency of 2658 lines/mm and reflection gratings with a spatial frequency of 4553 lines/mm were stored in a polyvinyl alcohol (PVA)/acrylamide (AA) based photopolymer. This material can reach diffraction efficiencies close to 100% for spatial frequencies about [...] Read more.
Holographic transmission gratings with a spatial frequency of 2658 lines/mm and reflection gratings with a spatial frequency of 4553 lines/mm were stored in a polyvinyl alcohol (PVA)/acrylamide (AA) based photopolymer. This material can reach diffraction efficiencies close to 100% for spatial frequencies about 1000 lines/mm. However, for higher spatial frequencies, the diffraction efficiency decreases considerably as the spatial frequency increases. To enhance the material response at high spatial frequencies, a chain transfer agent, the 4,4’-azobis (4-cyanopentanoic acid), ACPA, is added to the composition of the material. Different concentrations of ACPA are incorporated into the main composition of the photopolymer to find the concentration value that provides the highest diffraction efficiency. Moreover, the refractive index modulation and the optical thickness of the transmission and reflection gratings were obtained, evaluated and compared to procure more information about the influence of the ACPA on them. Full article
(This article belongs to the Special Issue Photopolymers for Holographic Applications)
►▼ Show Figures

Figure 1

1888 KiB  
Article
Spatial Frequency Responses of Anisotropic Refractive Index Gratings Formed in Holographic Polymer Dispersed Liquid Crystals
by Yoshiaki Fukuda and Yasuo Tomita
Materials 2016, 9(3), 188; https://doi.org/10.3390/ma9030188 - 10 Mar 2016
Cited by 7 | Viewed by 6098
Abstract
We report on an experimental investigation of spatial frequency responses of anisotropic transmission refractive index gratings formed in holographic polymer dispersed liquid crystals (HPDLCs). We studied two different types of HPDLC materials employing two different monomer systems: one with acrylate monomer capable of [...] Read more.
We report on an experimental investigation of spatial frequency responses of anisotropic transmission refractive index gratings formed in holographic polymer dispersed liquid crystals (HPDLCs). We studied two different types of HPDLC materials employing two different monomer systems: one with acrylate monomer capable of radical mediated chain-growth polymerizations and the other with thiol-ene monomer capable of step-growth polymerizations. It was found that the photopolymerization kinetics of the two HPDLC materials could be well explained by the autocatalytic model. We also measured grating-spacing dependences of anisotropic refractive index gratings at a recording wavelength of 532 nm. It was found that the HPDLC material with the thiol-ene monomer gave higher spatial frequency responses than that with the acrylate monomer. Statistical thermodynamic simulation suggested that such a spatial frequency dependence was attributed primarily to a difference in the size of formed liquid crystal droplets due to different photopolymerization mechanisms. Full article
(This article belongs to the Special Issue Photopolymers for Holographic Applications)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop