Results 61 to 70 of about 666,559 (380)

SAOLIM, a prototype of a low cost System for Adaptive Optics with Lucky Imaging

, 2010
A prototype of a low cost Adaptive Optics (AO) system has been developed at the Instituto de Astrofisica de Andalucia (CSIC) and tested at the 2.2m telescope of the Calar Alto observatory.
Aceituno, F. J., Aceituno, J., Ortiz, J. L., Sanchez, S. F.   +3 more
core   +1 more source

Loss of Stat3 in Prx1+ Progenitors Impairs Molar Root Development

Advanced Biology, EarlyView.
Stat3 critically regulates mandibular first molar and alveolar bone morphogenesis. Conditional ablation of Stat3 disrupts the osteogenic capacity of Prx1+ mesenchymal progenitors, as evidenced across in vivo and in vitro models. Abstract Signal Transducer and Activator of Transcription 3 (Stat3) acts as a central transcriptional modulator coordinating ...
Xin Feng, Wangyu Luo, Yichen Yao, Lichieh Lin, Laiting Chan, Jiarui Lu, Zijing Huang, Jingyi Feng, Le Zhao, Xiaolei Zhang, Liu Yang   +10 more
wiley   +1 more source

Surface Shape Distortion Online Measurement Method for Compact Laser Cavities Based on Phase Measuring Deflectometry

Photonics, 2022
Conventional phase measuring deflectometry (PMD) takes up a large measurement space and is not suitable for compact online measurement, as the liquid crystal display (LCD) has to be placed in parallel with the mirror under test.
Yongchen Zhuang, Yamin Zheng, Shibing Lin, Deen Wang, Yifan Zhang, Lei Huang   +5 more
doaj   +1 more source

CVD SiC deformable mirror with monolithic cooling channels.

Optics Express, 2018
We propose a novel deformable mirror (DM) for adaptive optics in high power laser applications. The mirror is made of a Silicon carbide (SiC) faceplate, and cooling channels are embedded monolithically inside the faceplate with the chemical vapor ...
K. Ahn, H. Rhee, Ho-Soon Yang, H. Kihm
semanticscholar   +1 more source

Phase control of a longitudinal momentum entangled photon state by a deformable membrane mirror

, 2009
We propose a paradigmatic demonstration of the potentialities of a deformable mirror for closed-loop control of a two-photon momentum-entangled state, subject to phase fluctuations.
Abouraddy, Andrea Chiuri, Barbieri, Barreiro, Bechmann-Pasquinucci, Bonato, Bonora, Brida, Briegel, Chen, Clafin, Cristian Bonato, Fernandez, Giorgio Milani, Giuseppe Vallone, Hartmann, Knutsson, Minár, Paolo Mataloni, Paolo Villoresi, Rarity, Rossi, Schuck, Stefano Bonora, Thew, Vallone, Vallone, Vallone, Wei, Zeek   +29 more
core   +1 more source

Robocasting of a Water‐Based Biopolymer/WO3 Nanopowder Paste as a Precursor to Tungsten Carbide Lattices

Advanced Engineering Materials, EarlyView.
This study demonstrates a novel, additive manufacturing approach to produce complex, porous tungsten carbide structures using water‐based direct ink writing/robocasting. Leveraging a modified commercial printer and heat treatment, the process yields lightweight, electrically conductive 3D architectures capable of supporting a mechanical load.
James Bentley Bevis, Manasi Shah, Sanketh Gombi, Rodrigo Martinez‐Duarte   +3 more
wiley   +1 more source

Electromagnetic deformable mirror fabricated using silicon micromachining and stress-resilient assembly

Advanced Optical Technologies
Introduction: This work presents a prototype electromagnetic actuation deformable mirror (DM) assembly with stress-resilient face sheet design.Methods: The DM face sheet design includes slender micromachined silicon pillars that are integrated with a ...
Wenkuan (Kevin) Man, Thomas Bifano
doaj   +1 more source

An Efficient Method for Wavefront Aberration Correction Based on the RUN Optimizer

Photonics, 2023
The correction of wavefront aberrations in wavefront sensorless (WFS-less) adaptive optical (AO) systems requires control algorithms that can ensure rapid convergence while maintaining effective correction capabilities.
Huizhen Yang, Xiangdong Zang, Peng Chen, Xingliu Hu, Yongqiang Miao, Zhaojun Yan, Zhiguang Zhang   +6 more
doaj   +1 more source

Integrated Laboratory Demonstrations of Multi-Object Adaptive Optics on a Simulated 10-Meter Telescope at Visible Wavelengths [PDF]

, 2009
One important frontier for astronomical adaptive optics (AO) involves methods such as Multi-Object AO and Multi-Conjugate AO that have the potential to give a significantly larger field of view than conventional AO techniques.
Ammons, S. Mark, Bauman, Brian J., Gavel, Donald T., Johnson, Luke, Kupke, Renate, Laag, Edward A., Max, Claire E.   +6 more
core   +1 more source

3D‐Printed Architected Material for the Generation of Foam‐Based Protective Equipment

Advanced Engineering Materials, EarlyView.
This study investigates 3D‐printed architected structures as alternatives to traditional foams in protective gear. It focuses on customizing impact strength and damping through design and manufacturing integration. Testing shows these structures outperform conventional foams, offering enhanced customizability, lower weight, and tunable performance ...
Ali Zolfagharian, Gerard Bel Català, Daniel Saakes, Bernard Rolfe, Ian Gibson, Mehrshad Mehrpouya   +5 more
wiley   +1 more source