Results 161 to 170 of about 1,993 (216)
Pattern Formation in Non‐Equilibrium Architected Materials
Advanced Materials Technologies, EarlyView.This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley +1 more source
Anti‐Slip Material‐Based Strategies and Approaches
Advanced Materials Technologies, EarlyView.This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani +3 more
wiley +1 more source
4D Printing of Multimaterial Flexible Magneto‐Active Polymers
Advanced Materials Technologies, EarlyView.Magneto‐active polymers are 3D‐printed with tunable mechanical and magnetic properties using both superparamagnetic and hard ferromagnetic fillers. Nano‐CT imaging reveals the spatial distribution of particles within the matrix. Programmable magnetization patterns and soft, flexible architectures enable responsive actuation, offering exciting ...
Naji Tarabay +6 more
wiley +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Laser optical feedback tomography
Biomedical Optics, 1999We describe a new method for imaging in three-dimensional turbid media, laser optical feedback tomography. This technique is based on the resonant sensitivity of a short-cavity laser to frequency-shifted optical feedback from ballistic photons retrodiffused from the medium.
E, Lacot, R, Day, F, Stoeckel
openaire +2 more sources
Laser optical feedback imaging insensitive to parasitic optical feedback
Applied Optics, 2007We present an optical architecture for the laser optical feedback imaging (LOFI) technique that makes it possible to avoid the effect of the optical parasitic reflections introduced by the optical components located between the laser source and the studied object. These reflections damage phase and amplitude information contained in the images.
Olivier, Jacquin +3 more
openaire +2 more sources
Intracavity feedback optical trapping
Il Nuovo Cimento C, 2022Several research groups have integrated feedback control with optical trapping to improve performance, e.g., for force or position control. Among the different proposed approaches, using the feedback when trapping inside a laser cavity stands out for several reasons, namely, trapping can occur at lower optical intensities, reducing photodamage, and ...
Ciarlo, Antonio +5 more
openaire +2 more sources
Digital feedback optical vibrometer
2016 IEEE International Instrumentation and Measurement Technology Conference Proceedings, 2016Self-mixing interferometer allows to realize different kind of measuring systems, especially vibrometers. This work describes the design and implementation of a digital feedback-loop, acting on the laser pump current, able to lock the interferometer to half-fringe, and to measure the target vibration by estimating the feedback error signal. The digital
NORGIA, MICHELE +4 more
openaire +2 more sources
Optical Trapping and Optical Micromanipulation XV, 2018
Feedback traps can manipulate particles arbitrarily. In a feedback trap, a position detector detects the particle’s position, a computer calculates the necessary force to be applied based on the position in the “virtual potential,” which is applied to the particle. The process is repeated with as fast a loop rate as practical.
Kumar, Avinash, Bechhoefer, John
openaire +1 more source
Feedback traps can manipulate particles arbitrarily. In a feedback trap, a position detector detects the particle’s position, a computer calculates the necessary force to be applied based on the position in the “virtual potential,” which is applied to the particle. The process is repeated with as fast a loop rate as practical.
Kumar, Avinash, Bechhoefer, John
openaire +1 more source
Optical Feedback Buffering Strategies
2005This paper considers the performance of fixed and incremental feedback buffers in an optical switch, and compares this with the performance of a feedback buffer configuration implementing switchable delay lines. It is shown that for a medium sized switch the switchable delay line implementation outperforms the other configurations, although for a large
Geldenhuys, Ronelle +3 more
openaire +1 more source
Bistable optical spatial device using direct optical feedback
Optics Letters, 1978Analysis and implementation of a set of optically controlled optical flip-flops on the surface of a liquid-crystal spatial- light modulator (SLM) are presented. The elementary system consists of a pair of image elements on the SLM whose input and output are coupled to each other by purely optical means.
U K, Sengupta +2 more
openaire +2 more sources