Digital holographic microscopy for real-time observation of surface-relief grating formation on azobenzene-containing films

H Rekola, A Berdin, C Fedele, M Virkki, A Priimagi - Scientific Reports, 2020 - nature.com
Light-induced surface structuring of azobenzene-containing films allows for creation of
complex surface relief patterns with varying heights, patterns which would be difficult to …

Shapeshifting diffractive optical devices

SL Oscurato, F Reda, M Salvatore… - Laser & Photonics …, 2022 - Wiley Online Library
In optical devices like diffraction gratings and Fresnel lenses, light wavefront is engineered
through the structuring of device surface morphology, within thicknesses comparable to the …

Holography, Fourier optics, and beyond photonic crystals: Holographic fabrications for Weyl points, bound states in the continuum, and exceptional points

Y Lim, H Park, B Kang, K Kim, D Yang… - Advanced Photonics …, 2021 - Wiley Online Library
Since the 1990s, applications of holography and Fourier optics have been significantly
expanded from the spatial modulation of light propagation to the nanofabrication of …

Accurate morphology-related diffraction behavior of light-induced surface relief gratings on azopolymers

F Reda, M Salvatore, F Borbone… - ACS Materials …, 2022 - ACS Publications
Holographic relief gratings can be fabricated directly on the surface of azobenzene-
containing materials (or simply azomaterials) without additional development steps. Despite …

Complex Fourier surfaces by superposition of multiple gratings on azobenzene thin films

A Berdin, HT Rekola, A Priimagi - Advanced Optical Materials, 2024 - Wiley Online Library
Diffractive optical elements (DOE) are integral components for lightweight and ultra‐thin
optical elements due to their ability to manipulate light efficiently and accurately. However …

Large‐Scale Multiplexed Azopolymer Gratings with Engineered Diffraction Behavior

SL Oscurato, F Reda, M Salvatore… - Advanced Materials …, 2021 - Wiley Online Library
The diffraction of polychromatic light from periodic superficial structures is often responsible
for the structural colors observed in Nature. Similarly, engineered microtextures fabricated …

Unconventional approaches to light-promoted dynamic surface morphing on polymer films

D Zhang, D Liu, T Ubukata, T Seki - Bulletin of the Chemical …, 2022 - academic.oup.com
Recent progress in research of light-promoted surface morphing on polymer materials is
reviewed. Photoinduced mass transport motions in azobenzene polymers leading to surface …

Photoinduced movement: how photoirradiation induced the movements of matter

T Yamaguchi, M Ogawa - Science and Technology of Advanced …, 2022 - Taylor & Francis
Pioneered by the success on active transport of ions across membranes in 1980 using the
regulation of the binding properties of crown ethers with covalently linked photoisomerizable …

Supramolecular azopolymers for dynamic surface microstructures using digital polarization optics

J Strobelt, M Van Soelen, H Abourahma… - Advanced Optical …, 2023 - Wiley Online Library
Thin film supramolecular azopolymers support the all‐optical generation of dynamic surface
microstructures. Using a spatial light modulator (SLM) illuminated at 488 nm, structured …

Reprogrammable holograms from maskless surface photomorphing

F Reda, M Salvatore, M Astarita… - Advanced Optical …, 2023 - Wiley Online Library
Holographic technologies have been envisioned as potentially impacting many areas of
everyday life, including science, entertainment, and healthcare, but their adoption is still at …