posted on 2023-05-15, 15:12authored byPartha Kumbhakar, Ashim Pramanik, Shashank Shekhar Mishra, Raphael Tromer, Krishanu Biswas, Arup Dasgupta, Douglas S. Galvao, Chandra Sekhar Tiwary
A number
of strategies have been exploited so far to trap photons
inside living cells to obtain high-contrast imaging. Also, launching
light inside biological materials is technically challenging. Using
photon confinement in a three-dimensional (3D)-printed biomimetic
architecture in the presence of a localized surface plasmon resonance
(LSPR) promoter can overcome some of these issues. This work compares
optical confinement in natural and 3D-printed photonic architectures,
namely, fish scale, in the presence of atomically thin Al70Co10Fe5Ni10Cu5 quasicrystals
(QCs). Due to their wideband LSPR response, the QCs work as photon
scattering hotspots. The architecture acts as an additive source of
excitation for the two-dimensional (2D) QCs via total internal reflection
(TIR). The computational analysis describes the surface plasmon-based
scattering property of 2D QCs. The 3D-printed fish scale’s
image contrast with the 2D Al70Co10Fe5Ni10Cu5 QC has been compared with other 2D
materials (graphene, h-BN, and MoS2) and outperforms them.
The present study conceptually presents a new approach for obtaining
high-quality imaging of biological imaging, even using high-energy
photons.