Results 51 to 60 of about 541 (160)

Polarization‐Controlled Strong Light–Matter Interaction With Templated Molecular Aggregates

Advanced Optical Materials, Volume 13, Issue 28, October 2, 2025.
Graphene nanoribbons act as a template for brick‐shaped organic semiconductor molecules. The templating results in optoelectronic properties resembling those of a single crystal. The templated layer supports optical transitions with well‐oriented transition dipole moments.
Roland Schäfer, Philipp Weitkamp, Otgonbayar Erdene‐Ochir, Klaus Meerholz, Klas Lindfors   +4 more
wiley   +1 more source

Integrating Strain Gauge Feedback with Adaptive Sliding Mode Motion Control for Piezoelectric Nanopositioning Stage

Actuators
This paper presents an adaptive sliding mode control (ASMC) scheme based on strain gauge position feedback for compensating for motion errors in a piezoelectric nanopositioning stages and ensures precise and reliable motion tracking control.
Xianfeng Zeng, Feng Nan, Tengfei Li, Changchao Mo, Jiaqiu Su, Kaihong Wei, Xiaozhi Zhang   +6 more
doaj   +1 more source

Compensation of Hysteresis on Piezoelectric Actuators Based on Tripartite PI Model

Micromachines, 2018
Piezoelectric ceramic actuators have been widely used in nanopositioning applications owing to their fast response, high stiffness, and ability to generate large forces.
Dong An, Haodong Li, Ying Xu, Lixiu Zhang   +3 more
doaj   +1 more source

Modelling and optimal control of nanopositioning piezo stage

, 2020
Nanopositioners have a wide variety of applications in many fields, such as micro and nano manufacturing, medical research and study of micro and nano material properties. They are mainly used to induce forces and movements in micrometer and nanometer range.
openaire   +3 more sources

Kinesin‐Driven De‐Mixing of Cytoskeleton Composites Drives Emergent Mechanical Properties

Macromolecular Rapid Communications, Volume 46, Issue 14, July 18, 2025.
Optical tweezers microrheology and fluorescence microscopy is coupled with simulations and mathematical modeling to discover that active cytoskeleton composites exhibit a rich ensemble of emergent mechanical response characteristics, from yielding to stiffening, governed by kinesin‐driven restructuring from well‐mixed interpenetrating double‐networks ...
Janet Sheung, Christopher Gunter, Katarina Matic, Mehrzad Sasanpour, Jennifer L. Ross, Parag Katira, Megan T. Valentine, Rae M. Robertson‐Anderson   +7 more
wiley   +1 more source

Overview of 3D Micro- and Nanocoordinate Metrology at PTB

Applied Sciences, 2016
Improved metrological capabilities for three-dimensional (3D) measurements of various complex micro- and nanoparts are increasingly in demand.
Gaoliang Dai, Michael Neugebauer, Martin Stein, Sebastian Bütefisch, Ulrich Neuschaefer-Rube   +4 more
doaj   +1 more source

Dispersive X‐ray absorption spectroscopy using independent grazing‐incidence focusing and convexly bent Bragg‐crystal dispersing optics

Journal of Synchrotron Radiation, Volume 32, Issue 4, Page 1068-1084, July 2025.
A dispersive X‐ray absorption spectroscopy instrument has been developed and implemented at the Advanced Photon Source's Advanced Spectroscopy Beamline. The instrument uses a convexly bent Bragg‐crystal analyzer to disperse a polychromatic X‐ray beam and independent Kirkpatrick–Baez mirrors for focusing, thereby providing a simple and flexible method ...
Juanjuan Huang, Adam P. Tornheim, Xianbo Shi, Mark Wolfman, Yanna Chen, Steve M. Heald, Shelly D. Kelly, George E. Sterbinsky   +7 more
wiley   +1 more source

Multimodal Purcell enhancement and optical coherence of Eu3+ ions in a single nanoparticle coupled to a microcavity

Nanophotonics, Volume 14, Issue 11, Page 1817-1826, June 2025.
Abstract Europium‐doped nanocrystals constitute a promising material for a scalable future quantum computing platform. Long‐lived nuclear spin states could serve as qubits addressed via coherent optical transitions. In order to realize an efficient spin‐photon interface, we couple the emission from a single nanoparticle to a fiber‐based microcavity ...
Timon Eichhorn, Nicholas Jobbitt, Sören Bieling, Shuping Liu, Tobias Krom, Diana Serrano, Robert Huber, Ulrich Lemmer, Hugues de Riedmatten, Philippe Goldner, David Hunger   +10 more
wiley   +1 more source

Smart Polymeric 3D Microscaffolds Hosting Spheroids for Neuronal Research via Quantum Metrology

Advanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
Development of a platform consisting of 3D microscaffolds supporting 3D embryoid bodies for neuronal research. The polymeric scaffolds enable directed growth of neurites. This study shows nanodiamond‐based quantum sensors graft onto the polymer material, enabling quantum metrology experiments within the 3D neuronal model and thereby providing a ...
Beatriz N. L. Costa, Ana Marote, Catarina Barbosa, Jonas Campos, António J. Salgado, Jana B. Nieder   +5 more
wiley   +1 more source

Transient Absorption Microscopy Maps Spatial Heterogeneity and Distinct Chemical Environments in Photocatalytic Carbon Nitride Particles

Small, Volume 21, Issue 5, February 5, 2025.
The complex charge carrier dynamics of promising carbon nitride photocatalysts make optimization challenging. Here spatial heterogeneity is discovered using transient absorption microscopy on carbon nitride particles from the same synthetic batch. This indicates that there are at least two distinct defect types that control the charge carrier dynamics,
Sutripto Khasnabis, Robert Godin
wiley   +1 more source