Results 61 to 70 of about 265,100 (299)
Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite
Advanced Functional Materials, EarlyView.The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen +16 more
wiley +1 more source
Optical characterization of a screen printed actuator deformable mirror
, 2022 S.74-75This paper reports on the properties and characterization of a screen printed deformable mirror. This unimorph mirror offers a ceramic substrate with screen printed PZT layers on its back side and a machined copper layer on its front side.
Beckert, E. +5 more
core +1 more source
Distributed control of large deformable mirrors [PDF]
SPIE Proceedings, 2012 While it is attractive to integrate a deformable mirror (DM) for adaptive optics (AO) into the telescope itself rather than using relay optics within an instrument, the resulting large DM can be expensive, particularly for extremely large telescopes. A low-cost approach for building a large DM is to use voice-coil actuators, and rely on feedback from ...
MacMartin, Douglas G. +3 more
openaire +2 more sources
Study of a Large Deformable Mirror Concept [PDF]
, 2011 It is attractive to integrate a large deformable mirror for adaptive optics into an astronomical telescope rather than using relay optics within an auxiliary instrument.
Heimsten, Rikard, Rikard Heimsten
core
A Ferrofluid Deformable Mirror for Adaptive Optics
, 2022 Increasing multi-disciplinary demand for imaging and optical signal processing modalities with extreme performance capabilities has fueled the adoption of adaptive optics technologies, which synthesize optical systems with suitable properties by ...
Lemmer, Aaron
core
Advanced Functional Materials, EarlyView.The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu +5 more
wiley +1 more source
Optimization of electrode geometry and piezoelectric layer thickness of a deformable mirror
EPJ Web of Conferences, 2013 Deformable mirrors are the most commonly used wavefront correctors in adaptive optics systems. Nowadays, many applications of adaptive optics to astronomical telescopes, high power laser systems, and similar fast response optical devices require large ...
Nováková Kateřina +2 more
doaj +1 more source
Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites
Advanced Functional Materials, EarlyView.Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto +4 more
wiley +1 more source
Journal of the Mechanical Behavior of Materials, 2018 Active optics techniques on large telescopes and astronomical instrumentations provide high imaging quality. For ground-based astronomy, the co-addition of adaptive optics again increases angular resolution up to providing diffraction-limited imaging at ...
Lemaitre Gérard Rene
doaj +1 more source
An Image Stabilization Optical System Using Deformable Freeform Mirrors
Sensors, 2015 An image stabilization optical system using deformable freeform mirrors is proposed that enables the ray sets to couple dynamically in the object and image space.
Qun Hao +3 more
doaj +1 more source