Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (1)

Search Parameters:
Keywords = functionalised holograms

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
21 pages, 4543 KiB  
Article
A Magnetic Nanoparticle-Doped Photopolymer for Holographic Recording
by Muhammad Irfan, Suzanne Martin, Muhannad Ahmed Obeidi, Scott Miller, Frank Kuster, Dermot Brabazon and Izabela Naydenova
Polymers 2022, 14(9), 1858; https://doi.org/10.3390/polym14091858 - 30 Apr 2022
Cited by 10 | Viewed by 3420
Abstract
Functionalised holograms are important for applications utilising smart diffractive optical elements for light redirection, shaping and in the development of sensors/indicators. This paper reports on holographic recording in novel magnetic nanocomposites and the observed temperature change in dry layers and liquid samples exposed [...] Read more.
Functionalised holograms are important for applications utilising smart diffractive optical elements for light redirection, shaping and in the development of sensors/indicators. This paper reports on holographic recording in novel magnetic nanocomposites and the observed temperature change in dry layers and liquid samples exposed to alternating magnetic field (AMF). The nanocomposite consists of N-isopropylacrylamide (NIPA)-based polymer doped with magnetic nanoparticles (MNPs), and local heating is achieved through magnetic induction. Here, volume transmission holographic gratings (VTHGs) are recorded with up to 24% diffraction efficiency (DE) in the dry layers of magnetic nanocomposites. The dry layers and liquid samples are then exposed to AMF. Efficient heating was observed in the liquid samples doped with Fe3O4 MNPs of 20 nm average size where the temperature increased from 27 °C to 64 °C after 300 s exposure to 111 mT AMF. The temperature increase in the dry layers doped with the same nanoparticles after exposure to 4.4 mT AMF was observed to be 6 °C. No temperature change was observed in the undoped layers. Additionally, we have successfully recorded Denisyuk holograms in the magnetic nanocomposite materials. The results reveal that the magnetic nanocomposite layers are suitable for recording holograms and need further optimisation in developing holographic indicators for mapping AMFs. Full article
(This article belongs to the Special Issue Feature Papers in Polymer Applications)
Show Figures

Figure 1

Back to TopTop