Results 61 to 70 of about 5,552 (189)
Refractive Index Compensation in Over-Determined Interferometric Systems
Sensors, 2012 We present an interferometric technique based on a differential interferometry setup for measurement under atmospheric conditions. The key limiting factor in any interferometric dimensional measurement are fluctuations of the refractive index of air ...
Zdeněk Buchta +5 more
doaj +1 more source
Free ultra-high-Q microtoroid: a tool for designing photonic devices [PDF]
, 2007 We describe techniques that enable fabrication of a new class of photonic devices based on free UH-Q microresonators. Preliminary results show that free silica microtoroids with Qs above 30 million can be fabricated and transferred to different platforms
Hossein-Zadeh, Mani, Vahala, Kerry J.
core +1 more source
Macrophages Mediate Mesoscale Brain Mechanical Homeostasis
Advanced Materials, Volume 38, Issue 6, 27 January 2026.We investigated the role of infiltrating immune cells in sculpting the developing brain. Using Brillouin microscopy and active microrheology, we found microglia actively maintain tissue viscoelasticity. Moreover, colony stimulating factor one receptor (CSF1R)‐driven stromal remodeling alters brain mechanics in vivo. These findings link immune activity,
Woong Young So +11 more
wiley +1 more source
ActuatorsFriction–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 +5 more
doaj +1 more source
Development of a XYθz 3-DOF nanopositioning stage with linear displacement amplification device
MATEC Web of Conferences, 2017 The main purpose of this study is to develop a XYθZ 3-DOF nanopositioning stage with linear displacement amplification device. This stage is used by three groups of linear displacement amplification device to composition, and thus achieves precise XYθZ 3-
Chu Chih-Liang +2 more
doaj +1 more source
Nanopositioning of a diamond nanocrystal containing a single NV defect center
, 2009 Precise control over the position of a single quantum object is important for many experiments in quantum science and nanotechnology. We report on a technique for high-accuracy positioning of individual diamond nanocrystals.
de Lange, G. +6 more
core +2 more sources
NPS6D200—A Long Range Nanopositioning Stage with 6D Closed Loop Control
Applied SciencesThis work presents the new development of a nanopositioning machine for a large operating range. The machine, called NPS6D200, provides Ø200 mm planar and 25 mm vertical travel range and applies a 6D closed loop control with all drive forces applied ...
S. Hesse +4 more
semanticscholar +1 more source
Advanced Optical Materials, Volume 14, Issue 1, 9 January 2026.Continuous‐wave lasing from a small number of perovskite quantum dots is achieved by coupling their photoluminescence to open‐access curved dielectric cavities. This geometry confines their emission into a single optical mode, sharply narrowing linewidths in both spontaneous and lasing regimes.
Sunny Tiwari +7 more
wiley +1 more source
Measurement science and technologyThis paper explores large area application of tip-based nanofabrication by field emission scanning probe lithography and showcases the simultaneous possibility of atomic force microscopy on macroscopic scales.
J. Stauffenberg +8 more
semanticscholar +1 more source
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 +7 more
wiley +1 more source