Results 1 to 10 of about 321,881 (290)
Point-to-point stabilized optical frequency transfer with active optics [PDF]
Nature Communications, 2021 Atomic clocks and their networks are useful tools for optical communications and frequency metrology. Here the authors use phase stabilization and active tip-tilt to suppress atmospheric effects and enable optical frequency transfer through free-space.
Benjamin P. Dix-Matthews +10 more
doaj +3 more sources
Shape Control of a Unimorph Deformable Mirror for Space Active Optics under Uncertainties [PDF]
Micromachines, 2023 This paper focuses on the change of morphing capabilities for a unimorph deformable mirror impacted by environmental factors, which works in space for active optics applications.
Kainan Wang, Yian Yu, André Preumont
doaj +2 more sources
Deep Learning Correction Algorithm for The Active Optics System [PDF]
Sensors, 2020 The correction of wavefront aberration plays a vital role in active optics. The traditional correction algorithms based on the deformation of the mirror cannot effectively deal with disturbances in the real system.
Wenxiang Li +6 more
doaj +2 more sources
Frontiers in Public Health, 2022 This study aimed at implementing practice to build a standardized protocol to test the performance of computer-aided detection (CAD) algorithms for pulmonary nodules.
Hao Wang +5 more
doaj +1 more source
Metal-Organic Hybrid Metamaterials for Spectral-Band Selective Active Terahertz Modulators
Applied Sciences, 2021 Optically controlled spectral-band selective terahertz (THz) modulators based on metal-organic hybrid metamaterials were investigated. An artificially structured material, which consists of two single split-ring resonators put together on the split gap ...
Hyung Keun Yoo +6 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source