Naslov
Biologically inspired structures for multispectral imaging

Autori
Skenderović, Hrvoje

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstract book, The 3rd International Congress on Advanced Materials Sciences and Engineering / Gradišnik, Vera - Rijeka, 2022, 189-189

Skup
3rd International Congress on Advanced Materials Sciences and Engineering (AMSE 2022)

Mjesto i datum
Opatija, Hrvatska, 21.07.2022. - 25.07.2022

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Holography, biomimetics,
(Holography, biomimetics)

Sažetak
This work examines the possibility of making a camera that would use the thermophoretic effect on certain biomimetic microstructures for optical reading. The microstructures are inspired by the micron lamellae that we find in butterfly wings, and a proposed imaging device would not be limited to visible light but could be sensitive in other parts of the spectrum (ultraviolet and infrared). The principle of operation could be briefly described as follows: Due to the illumination of a butterfly wing with electromagnetic radiation, the illuminated side is slightly heated. As a result, nearby air molecules on the heated side pick up slightly more energy compared to molecules on the unheated side. This difference in energies generates the pressure acting on the wing scale. The pressure is very low, but the mass of the scales is also small, so they deflect. Deflections are registered by holographic method and used for imaging of incident radiation. These holograms are then numerically reconstructed, and a phase or amplitude image is generated that can be displayed on a computer screen or a stand-alone device. In previous studies, this effect has already been observed and described in several species of butterfly wings. The degree of deflection depending on the intensity and wavelength of the incident radiation was also studied. The aim of the work is to create an artificial biomimetic material and design a multispectral camera based on a network of such material with a holographic reading. The implementation of FFT algorithms on Nvidia graphics processor and data acquisition using gigE and usb3 protocols is also demonstrated.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA