Results 81 to 90 of about 5,552 (189)

A flexure-based kinematically decoupled micropositioning stage with a centimeter range dedicated to micro/nano manufacturing [PDF]

open access: yes, 2015
Precision positioning stages with large strokes and high positioning accuracy are attractive for high-performance micro/nano manufacturing. This paper presents the dynamic design and characteristic investigation of a novel XY micropositioning stage ...
Liang, Cunman   +4 more
core   +1 more source

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Active stabilization of a Michelson interferometer at an arbitrary phase with sub-nm resolution

open access: yes, 2013
We report on the active stabilization of a Michelson interferometer at an arbitrary phase angle with a precision better than one degree at $\lambda = 632.8$ nm, which corresponds to an optical path difference between the two arms of less than 1 nm.
Bajoni, Daniele   +2 more
core   +1 more source

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

open access: yesMacromolecular 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   +7 more
wiley   +1 more source

Development of 3D Force Sensors for Nanopositioning and Nanomeasuring Machine

open access: yesSensors, 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   +4 more
doaj   +1 more source

Encapsulation of a fiber taper coupled microtoroid resonator in a polymer matrix

open access: yes, 2013
We encapsulated a high-quality (Q) factor optical whispering gallery mode (WGM) microtoroid resonator together with its side coupled fiber taper inside a low refractive index polymer, achieving a final Q higher than 10^7.
Friedlein, Jacob   +3 more
core   +1 more source

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

open access: yesJournal 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   +7 more
wiley   +1 more source

Development and testing of a XYZ scanner for atomic force microscope [PDF]

open access: yes, 2017
Atomic force microscopy (AFM) is a widely used tool in nano measurement and manipulation techniques. However, a traditional AFM system suffers from the limitation of slow scanning rate, due to the low dynamic performance of piezoelectric positioners.
Cai, Kunhai   +4 more
core   +1 more source

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

open access: yesNanophotonics, 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   +10 more
wiley   +1 more source

Stacking-symmetry governed second harmonic generation in graphene trilayers [PDF]

open access: yes, 2018
Crystal symmetry plays a central role in governing a wide range of fundamental physical phenomena. One example is the nonlinear optical second harmonic generation (SHG), which requires inversion symmetry breaking. Here we report a unique stacking-induced
Huang, Di   +6 more
core   +2 more sources

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