Results 61 to 70 of about 762 (173)

Asymmetrically Nonlinear Generation of Optical Orbital Angular Momentum via Cooperation of Bragg Diffraction and Birefringent Phase Matching

Laser &Photonics Reviews, Volume 20, Issue 2, 22 January 2026.
Nonlinear orbital angular momentum (OAM) manipulation is crucial for fundamental physics and information technologies. An integrated lithium niobate platform combining Bragg diffraction and birefringent phase matching asymmetrically generates and controls second‐harmonic OAM beams, achieving a normalized conversion efficiency of 10−2 W−1 and supports a
Xinyu Liu, Chun Chang, Yuntao Mo, Dingwei Liu, Dan Wei, Juntao Li, Dunzhao Wei, Xuehua Wang   +7 more
wiley   +1 more source

The Design of a Closed-Loop Piezoelectric Friction–Inertia XY Positioning Platform with a Centimeter Travel Range

Actuators
Friction–inertia piezoelectric actuators can perform long-range positioning with nanometer resolution. However, friction and inertia are not easy to control and can influence the actuator’s performance.
Zheng-Rong Guo, Hong-Sheng Tan, Chin-Shun Chang, Ing-Shouh Hwang, En-Te Hwu, Hsien-Shun Liao   +5 more
doaj   +1 more source

Single‐Source Cyanurate Precursor for Making Manganese Carbodiimide and the Second Harmonic Generation Effect of the Intermediate Manganese Monohydrocyanurate Mn(HC3N3O3)

European Journal of Inorganic Chemistry, Volume 28, Issue 36, December 15, 2025.
The thermal conversion of the single‐source precursor Mn(H2C3N3O3)2(H2O)4 reveals a sequence of new compounds. One intermediate compound is the second‐harmonic‐generation‐active Mn(HC3N3O3) (MHCY) that appears before pure Mn(CN2) is formed. Two manganese cyanurate compounds, Mn(H2C3N3O3)2(H2O)4 and Mn(H2C3N3O3)2(H2O)7 were prepared and structurally ...
Philipp Schneiderhan, Markus Ströbele, Hans‐Jürgen Meyer   +2 more
wiley   +1 more source

Millikelvin Intracellular Nanothermometry with Nanodiamonds

Advanced Science, Volume 12, Issue 45, December 4, 2025.
Nanothermometry in living cells is crucial for understanding heat diffusion and advancing cellular biology and drug discovery. Previous studies have reported controversial intracellular temperature variations. Using nanodiamond nanothermometry in macrophages, it is found that, in such experimental setting, apparent temperature changes are actually due ...
Maabur Sow, Jacky Mohnani, Genko Genov, Raphael Klevesath, Elisabeth Mayerhoefer, Yuliya Mindarava, Rémi Blinder, Soumen Mandal, Fabien Clivaz, Raúl B. Gonzalez, Daniel Tews, Christian Laube, Wolfgang Knolle, Amelie Jerlitschka, Farid Mahfoud, Oleg Rezinkin, Mateja Prslja, Yingke Wu, Pamela Fischer‐Posovszky, Martin B. Plenio, Susana F. Huelga, Tanja Weil, Anke Krueger, Gavin W. Morley, Oliver A. Williams, Steffen Stenger, Fedor Jelezko   +26 more
wiley   +1 more source

Signal transformation approach to fast nanopositioning

Review of Scientific Instruments, 2009
High bandwidth, high resolution positioning is a significant enabling tool for nanotechnology. Unfortunately, in a typical nanopositioner operating in closed loop, higher bandwidth results in increased sensitivity to measurement noise and hence reduced resolution. In this article we present a technique that allows high-precision tracking of repetitive,
Sebastian, Abu, Moheimani, S. O. Reza
openaire   +3 more sources

Standalone Integrated Magnonic Devices

Advanced Materials, Volume 37, Issue 40, October 9, 2025.
A standalone (not requiring external bias magnetic field) and tunable magnonic device is reported with all‐electric input and output, fully integrated on silicon (total footprint of 100 × 150 µm) and 3–8 GHz frequency band. This is achieved by monolithic integration of a CoFeB conduit with RF antennas and an assembly of NiFe and SmCo micromagnets ...
M. Cocconcelli, F. Maspero, A. Micelli, A. Toniato, A. Del Giacco, N. Pellizzi, A. E. Plaza, A. Cattoni, M. Madami, R. Silvani, C. Adelmann, A. A. Hamadeh, P. Pirro, S. Tacchi, F. Ciubotaru, R. Bertacco   +15 more
wiley   +1 more source

Reinforcement Learning-Based Adaptive Control of a Piezo-Driven Nanopositioning System

IEEE Open Journal of the Industrial Electronics Society
This article proposes a new reinforcement learning (RL)-based adaptive control design for precision motion control of a two-degree-of-freedom piezoelectric XY nanopositioning system. In this design, an actor-critic structure is developed to eliminate the
Liheng Chen, Qingsong Xu
doaj   +1 more source

Development of 3D Force Sensors for Nanopositioning and Nanomeasuring Machine

Sensors, 2009
In this contribution, we report on different miniaturized bulk micro machined three-axes piezoresistive force sensors for nanopositioning and nanomeasuring machine (NPMM).
Arti Tibrewala, Norbert Hofmann, Anurak Phataralaoha, Gerd Jäger, Stephanus Büttgenbach   +4 more
doaj   +1 more source

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

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