Results 11 to 20 of about 321,734 (315)
Active Optics—Progress in Modeling of Tulip-like Variable Curvature Mirrors
Optics, 2023 We present new results obtained from the modeling of a tulip-like variable curvature mirror (VCM) in the case of a central force that reacts to its contour.
Gerard R. Lemaitre +2 more
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Electronic‐photonic board as an integration platform for Tb/s multi‐chip optical communication
IET Optoelectronics, 2021 Chip‐on‐board silicon photonics O‐band wavelength‐division multiplexing transceivers have been developed that will eventually enable high‐throughput on‐board optical communication for multi‐socket on‐board communication.
Tobias Lamprecht +7 more
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Photonics, 2022 As the loading space in rockets and mirror fabrication technology is limited, optical systems in space cannot have large optical apertures. However, the successful launch and excellent performance of the James Webb Telescope indicate that segmented ...
Rongjie Qin +3 more
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Active Optics–Freeform Segment Mirror Replications from a Deformable Matrix
Photonics, 2022 We present a new active optics method for making smooth aspheric, or freeform, mirrors by replication technique from an elastically deformable matrix.
Gerard R. Lemaitre, Patrick Lanzoni
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Micromachines, 2023 This paper explores advanced shape control techniques for ultra-lightweight electro-actuated polymers with composite ferroelectric thin films. It begins with an overview of PVDF-TrFE film actuators used in the development of thin-shell composites ...
Kainan Wang +3 more
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Controllable Fano-like Resonance in Terahertz Planar Meta-Rotamers
Applied Sciences, 2021 Meta-molecules composed of meta-atoms exhibit various electromagnetic phenomena owing to the interaction among the resonance modes of the meta-atoms.
Subin Jo, Min-Gyu Bae, Joong-Wook Lee
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Applied Sciences, 2022 Studying how to use the coupling characteristics of net aberration fields induced by different perturbation parameters to realize the wave aberration compensation correction of perturbed telescopes is of great significance for the development of active ...
Jinxin Wang +4 more
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Coarse Phasing Detection Using Multiwavelength Wavefront
Photonics, 2023 Presently, the segmented mirror is the mainstream development direction of large-aperture telescopes. The key problem affecting the performance of segmented mirror telescopes concerns the co-phase of the segments. The segments’ co-phase includes the fine
Rongjie Qin, Zihao Yin, Yinnian Liu
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Active Support System for the Correction of a 4m SiC Primary Mirror Based on the Bending Mode
Applied Sciences, 2023 Active optics is a key technology in ground-based large-aperture telescopes. The active correction of the surface shape of the primary mirror is used to reduce the surface shape error and improve the imaging quality.
Zhiyuan Yu, Xiaoxia Wu, Fuguo Wang
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Anamorphic zoom system based on liquid crystal displays [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 In this work we present an anamorphic zoom system, based on liquid crystal displays, which allows changing the magnification and distortion of an image very quickly, without mechanical parts and keeping the output plane stationary.
Iemmi Claudio, Campos Juan
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