Results 101 to 110 of about 713,051 (384)

Ultrashort-pulse laser with an intracavity phase shaping element [PDF]

, 2010
A novel ultrashort-pulse laser cavity configuration that incorporates an intracavity deformable mirror as a phase control element is reported. A user-defined spectral phase relation of 0.7 radians relative shift could be produced at around 1035 nm. Phase
A. A. Lagatsky, Akturk, Akturk, Baltuška, Bartels, Baum, Binhammer, Brida, C. T. A. Brown, Cherezova, D. Burns, Dainty, Fork, Garduno-Mejia, Garduño-Mejía, Kwong, L. Laycock, Lagatsky, Lagatsky, Lubeigt, Lubeigt, Lubeigt, M. Griffith, Martinez, Meshulach, N. K. Metzger, O’Shea, O’Shea, Paschotta, Rabitz, Radzewicz, Sharan, Verluise, W. Lubeigt, W. Sibbett, Warren, Wnuk, Yang, Zeek   +38 more
core   +2 more sources

Nine toes; Mirror Foot Deformity

Indian Journal of Orthopaedics, 2015
Mirror foot is a very rare congenital anomaly, with only a few papers presenting definitive treatment for this entity. There are limited management recommendations. Most cases are treated before walking age. In our case, there were no associated developmental defects of the leg. The child underwent complex rays resection with medial foot reconstruction.
Aleksandar M. Vlahovic, Boris S Pistignjat, Natasa S. Vlahovic   +2 more
openaire   +3 more sources

High Repetition Rate Laser‐Induced Printing of Bioink with Picosecond Pulse Durations: Optimization of the Printing Process

Advanced Engineering Materials, EarlyView.
This study explores the use of laser‐induced forward transfer in the picosecond regime to create in vitro biomodels. Focusing on hydrodynamics and rheology, it investigates jet dynamics through time‐resolved imaging, optimizing laser fluence, biological ink viscosity, and printing distance to precisely control the volume and location of bioink ...
Lucas Duvert, Adrien Casanova, Ahmed Al‐Kattan, Stefano Testa, Frédérique Magdinier, Anne‐Patricia Alloncle   +5 more
wiley   +1 more source

Laser Output Performance and Temporal Quality Enhancement at the J-KAREN-P Petawatt Laser Facility

Photonics, 2023
We described the output performance and temporal quality enhancement of the J-KAREN-P petawatt laser facility. After wavefront correction using a deformable mirror, focusing with an f/1.3 off-axis parabolic mirror delivered a peak intensity of 1022 W/cm2
Hiromitsu Kiriyama, Yasuhiro Miyasaka, Akira Kon, Mamiko Nishiuchi, Akito Sagisaka, Hajime Sasao, Alexander S. Pirozhkov, Yuji Fukuda, Koichi Ogura, Kotaro Kondo, Nobuhiko Nakanii, Yuji Mashiba, Nicholas P. Dover, Liu Chang, Masaki Kando, Stefan Bock, Tim Ziegler, Thomas Püschel, Hans-Peter Schlenvoigt, Karl Zeil, Ulrich Schramm   +20 more
doaj   +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., Heimsten, Rikard, Andersen, Torben, Owner-Petersen, Mette   +3 more
openaire   +4 more sources

On the Rigidity and Mechanical Behavior of Triply Periodic Minimal Surfaces‐Based Lattices: Insights from Extensive Experiments and Simulations

Advanced Engineering Materials, EarlyView.
This study examines the mechanical properties of triply periodic minimal surfaces (TPMS)‐based lattices, analyzing 36 architectures in elastic and plastic regimes. It evaluates the applicability of beam‐based scaling laws to TPMS lattices. Rigidity arises from the alignment of members with the load direction and solid regions preventing rotation.
Lucía Doyle, Humberto Terrones, Carlos González   +2 more
wiley   +1 more source

Gluing Localized Mirror Functors [PDF]

arXiv, 2018
We develop a method of gluing the local mirrors and functors constructed from immersed Lagrangians in the same deformation class. As a result, we obtain a global mirror geometry and a canonical mirror functor. We apply the method to construct the mirrors of punctured Riemann surfaces and show that our functor derives homological mirror symmetry.
arxiv  

NFIRAOS First Facility AO System for the Thirty Meter Telescope [PDF]

, 2014
NFIRAOS, the Thirty Meter Telescope's first adaptive optics system is an order 60x60 Multi-Conjugate AO system with two deformable mirrors. Although most observing will use 6 laser guide stars, it also has an NGS-only mode. Uniquely, NFIRAOS is cooled to
Andersen, David, Atwood, Jenny, Boyer, Corinne, Byrnes, Peter, Caputa, Kris, Ellerbroek, Brent, Gilles, Luc, Herriot, Glen, Hill, Alexis, Ljusic, Zoran, Pazder, John, Rosensteiner, Matthias, Smith, Malcolm, Spano, Paolo, Szeto, Kei, Véran, Jean-Pierre, Wang, Lianqi, Wevers, Ivan, Wooff, Robert   +18 more
core   +2 more sources

Innovative Membrane Deformable Mirrors

, 2012
Nowadays adaptive optics (AO) is a very powerful technique for several scientific and technological applications, and with important economical perspectives. In the last decade, AO technology has fostered new solutions to improve adaptive components performance.
S. Bonora, U. Bortolozzo, NALETTO, GIAMPIERO, S. Residori   +3 more
openaire   +5 more sources

Wind-induced deformations in a segmented mirror [PDF]

Applied Optics, 2002
A Zernike expansion of wind-induced deformations in a segmented mirror is described. The wind model is a frozen turbulent field with a Kolmogorov spectrum for scales smaller than the outer scale and a flat spectrum for scales larger than the outer scale.
openaire   +4 more sources