Zobrazeno 1 - 10
of 217
pro vyhledávání: '"Oriano Francescangeli"'
Autor:
Francesco Vita, Fabrizio Corrado Adamo, Mario Campana, Blake Bordokas, Federica Ciuchi, Maria Penelope De Santo, Daniel Hermida-Merino, Angela Lisovsky, Michela Pisani, Diego Pontoni, Eric Scharrer, Oriano Francescangeli
Publikováno v:
Nanomaterials, Vol 14, Iss 4, p 357 (2024)
Bent-core liquid crystals, a class of mesogenic compounds with non-linear molecular structures, are well known for their unconventional mesophases, characterized by complex molecular (and supramolecular) ordering and often featuring biaxial and polar
Externí odkaz:
https://doaj.org/article/81c0b8437da944e2ae6630262bd868bf
Autor:
Riccardo Castagna, Cristiano Riminesi, Maria Savina Pianesi, Simona Sabbatini, Andrea Di Donato, Gautam Singh, Oriano Francescangeli, Emma Cantisani, Paolo Castellini, Daniele Eugenio Lucchetta
Publikováno v:
Materials, Vol 16, Iss 8, p 3046 (2023)
We have developed a photo-mobile polymer film, that combines organic and inorganic materials, to allow for controlled motion that can be triggered by light or heat. Our film is made using recycled quartz and consists of two layers: a multi-acrylate p
Externí odkaz:
https://doaj.org/article/35569e74d10c45f79232eb66a327a7bf
Autor:
Maruti Hegde, Lin Yang, Francesco Vita, Ryan J. Fox, Renee van de Watering, Ben Norder, Ugo Lafont, Oriano Francescangeli, Louis A. Madsen, Stephen J. Picken, Edward T. Samulski, Theo J. Dingemans
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Reinforcing polymers with carbon-based nanofillers is non-trivial due to incompatibilities between matrix and filler. Here, the authors report highly reinforced graphene oxide–aramid nanocomposites utilizing a water-based hybrid biaxial nematic mix
Externí odkaz:
https://doaj.org/article/f2f97e01f753469c843c516ec62bb89b
Autor:
Daniele Eugenio Lucchetta, Paolo Castellini, Milena Martarelli, Lorenzo Scalise, Giuseppe Pandarese, Cristiano Riminesi, Gautam Singh, Andrea Di Donato, Oriano Francescangeli, Riccardo Castagna
Publikováno v:
Materials, Vol 16, Iss 2, p 553 (2023)
In this work, we study the light-induced changes of the rotational speed of a thin photomobile film using a single-axis acoustic levitator operating at 40 kHz. In our experiments, a 50 μm thick photomobile polymer film (PMP) is placed in one of the
Externí odkaz:
https://doaj.org/article/c5aa6869a37c43bd87b3bdab8a243809
Autor:
Daniele Eugenio Lucchetta, Andrea Di Donato, Oriano Francescangeli, Cristiano Riminesi, Gautam Singh, Riccardo Castagna
Publikováno v:
Photonics, Vol 10, Iss 1, p 12 (2022)
We are reporting on easily-made, flexible, wearable, and stretchable holographic gratings for tunable distributed-feedback lasers. The laser device is formed by the integration of a reflection volume phase grating in a flexible substrate. The grating
Externí odkaz:
https://doaj.org/article/464f942c06c446af9f75ee47bacd6061
Autor:
Riccardo Castagna, Cristiano Riminesi, Andrea Di Donato, Oriano Francescangeli, Daniele Eugenio Lucchetta
Publikováno v:
Sensors, Vol 23, Iss 1, p 183 (2022)
In this work, we test the effectiveness of using highly transparent holographic phase reflection and transmission volume gratings based on multifunctional acrylates as linear compression and rotation sensors. The gratings are recorded in a holographi
Externí odkaz:
https://doaj.org/article/020babb155574e0dadd6c82167ab7991
Autor:
Riccardo Castagna, Cristiano Riminesi, Andrea Di Donato, Oriano Francescangeli, Daniele Eugenio Lucchetta
Publikováno v:
Materials, Vol 15, Iss 23, p 8638 (2022)
We report on highly transparent holographic phase transmission volume gratings recorded in the visible region at λ = 532 nm. The maximum measured diffraction efficiency is higher than 80% with a grating pitch of Λ≈ 300 nm and a refractive index m
Externí odkaz:
https://doaj.org/article/9cef03d831b44ecc86687df6770b9707
Publikováno v:
Photonics, Vol 9, Iss 10, p 751 (2022)
In this work, we report the fabrication and optical characterization of a one-dimensional reflection holographic volume phase grating recorded in a recently developed holographic photomobile composite polymer mixture. The reflection grating recorded
Externí odkaz:
https://doaj.org/article/4ccb1b8a699a4bd8943d694627c737fa
Publikováno v:
Chemosensors, Vol 10, Iss 9, p 356 (2022)
We report on the optical characterization of very high-efficiency and high-resolution holographic volume phase transmission gratings. The gratings are recorded in a new photo-polymerizable mixture made by epoxy-resin and multi-acrylate. The epoxy-res
Externí odkaz:
https://doaj.org/article/4d0085cc327647ae97685d92beba4955
Autor:
Riccardo Castagna, Andrea Di Donato, Rachele Castaldo, Roberto Avolio, Oriano Francescangeli, Daniele Eugenio Lucchetta
Publikováno v:
Photonics, Vol 9, Iss 9, p 659 (2022)
In this work, we report on the fabrication and photonic activation of a novel kind of photomobile polymer (PMP) film based mainly on a double layered asymmetric configuration. The PMP is cheap and extremely easy to make. It is made of PVC/isoprene ta
Externí odkaz:
https://doaj.org/article/f912b5fb39e84e9f8a8a7bca172dabc1