Results 31 to 40 of about 1,669 (167)

3D micro-structured arrays of ZnΟ nanorods

Scientific Reports, 2017
The fabrication of nanostructures with controlled assembly and architecture is very important for the development of novel nanomaterial-based devices. We demonstrate that laser techniques coupled with low-temperature hydrothermal growth enable complex ...
Argyro N. Giakoumaki, George Kenanakis, Argyro Klini, Maria Androulidaki, Zacharias Viskadourakis, Maria Farsari, Alexandros Selimis   +6 more
doaj   +1 more source

Visible metalenses with high focusing efficiency fabricated using nanoimprint lithography [PDF]

, 2023
Metasurfaces enable precise control over the properties of light and hold promise for commercial applications. However, fabricating visible metasurfaces suitable for high-volume production is challenging and requires scalable processes. Nanoimprint lithography is a cost-effective and high-throughput technique that can meet this scalability requirement.
arxiv   +1 more source

In-situ electron-beam lithography of deterministic single-quantum-dot mesa-structures using low-temperature cathodoluminescence spectroscopy [PDF]

Applied Physics Letters 102, 251113 (2013), 2013
We report on the deterministic fabrication of sub-um mesa structures containing single quantum dots by in-situ electron-beam lithography. The fabrication method is based on a two-step lithography process using a low-temperature cathodoluminescence (CL) spectroscopy setup.
arxiv   +1 more source

3D micro-devices for enhancing the lateral resolution in optical microscopy

Light: Advanced Manufacturing
Although optical microscopy is a widely used technique across various multidisciplinary fields for inspecting small-scale objects, surfaces or organisms, it faces a significant limitation: the lateral resolution of optical microscopes is fundamentally ...
Gordon Zyla, Göran Maconi, Anton Nolvi, Jan Marx, Dimitra Ladika, Ari Salmi, Vasileia Melissinaki, Ivan Kassamakov, Maria Farsari   +8 more
doaj   +1 more source

On the Relationship between Resolution Enhancement and Multiphoton Absorption Rate in Quantum Lithography [PDF]

Physical Review A 75, 043813 (2007), 2006
The proposal of quantum lithography [Boto et al., Phys. Rev. Lett. 85, 2733 (2000)] is studied via a rigorous formalism. It is shown that, contrary to Boto et al.'s heuristic claim, the multiphoton absorption rate of a ``NOON'' quantum state is actually lower than that of a classical state with otherwise identical parameters.
arxiv   +1 more source

Experimental demonstration of quantum lithography beyond diffraction limit via Rabi oscillations [PDF]

Phys. Rev. A 93, 033837 (2016), 2015
Diffraction of light sets the fundamental limit for optical lithography. Many quantum lithography schemes have so far been proposed to overcome this limit either by making use of highly entangled photons, multi-photon processes or multiple Lambda transitions, which are all experimentally high-demanding. Recently, Liao et al.
arxiv   +1 more source

Concurrent Interface Passivation and Contact Work Function Tuning in Organic Self‐Aligned Gate Transistors and Complementary Circuits Using Phosphonic Acid Self‐Assembled Monolayers

Advanced Functional Materials, EarlyView.
Self‐aligned gate transistors are developed with a single‐step dielectric passivation and fine‐tuning of source/drain electrode work function using phosphonic acid self‐assembled monolayers (SAM). This transistor architecture minimizes overlap capacitances and access resistance.
Linqu Luo, Mohamad Insan Nugraha, Hendrik Faber, Shaoxian Li, Chrysa Aivalioti, Bahaaeddin Irziqat, Ricardo Ruvalcaba, Temur Maksudov, Yu‐ying Yang, Harold F. MazoMantilla, Lazaros Panagiotidis, Mohamed Nejib Hedhili, Furkan H. Isikgor, Leonidas Tsetseris, Shadi Fatayer, Martin Heeney, Thomas D. Anthopoulos   +16 more
wiley   +1 more source

A Gym for Cells—Direct Laser Writing of Magnetic Multilayered Micro Actuators for Mechanical Stimulation of Cells

Advanced Functional Materials, EarlyView.
Surface‐attached multilayer micromagnet systems are fabricated by two‐photon crosslinking. The pillar‐shaped micro actuators consist of a soft and flexible surface‐attached cell‐repellent hydrogel layer at the bottom, acting as a hinge and a cell‐adhesive hydrophobic polymer filled with magnetic nanoparticles.
Nicolas Geid, Ayman Husari, Eleonora Galli, Lukas Leffler, Pascal Tomakidi, Jürgen Rühe   +5 more
wiley   +1 more source

Advances in Radiative Heat Transfer: Bridging Far‐Field Fundamentals and Emerging Near‐Field Innovations

Advanced Functional Materials, EarlyView.
This review synthesizes the evolution of radiative heat transfer, emphasizing the transition from far‐field to near‐field regimes. Traditional frameworks, such as Planck's law, are revisited alongside modern innovations like fluctuational electrodynamics. Applications span nanoscale thermal management, energy harvesting, and thermophotovoltaic systems.
Ambali Alade Odebowale, Andergachew Berhe, Rasheed T. Ogundare, Salah Abdo, Amer Abdulghani, Haroldo T. Hattori, Andrey E. Miroshnichenko   +6 more
wiley   +1 more source

High‐Fidelity Directed Self‐Assembly Using Higher‐χ Polystyrene‐Block‐Poly(Methyl Methacrylate) Derivatives for Dislocation‐Free Sub‐10 nm Features

Advanced Functional Materials, EarlyView.
The relationship between primary polymer structure and pattern quality in the directed self‐assembly of chemically modified polystyrene‐block‐poly(methyl methacrylate) derivatives is explored. The perpendicular lamellae are aligned, with a periodicity below 20 nm. No parallel orientations or dislocations form, and line patterns are well defined over an
Shinsuke Maekawa, Lander Verstraete, Hyo Seon Suh, Takehiro Seshimo, Takahiro Dazai, Kazufumi Sato, Kan Hatakeyama‐Sato, Yuta Nabae, Teruaki Hayakawa   +8 more
wiley   +1 more source