Results 11 to 20 of about 3,491,013 (300)
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, Andre Preumont
exaly +4 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
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 +2 more sources
Active Support Correction and Variable Triangular Layout Optimization for an Annular Thin Mirror in Optical Remote-Sensing Systems [PDF]
SensorsSurface-figure stability is essential to high-resolution optical remote-sensing systems that employ lightweight annular primary mirrors. This study proposes a variable triangular active support layout for a 660 mm annular thin mirror with a 100 mm ...
Lanxin Peng, Changzheng Chen
doaj +2 more sources
Design for quality: reconfigurable flat optics based on active metasurfaces
Nanophotonics, 2020 Optical metasurfaces, planar subwavelength nanoantenna arrays with the singular ability to sculpt wavefront in almost arbitrary manners, are poised to become a powerful tool enabling compact and high-performance optics with novel functionalities.
Carlos Ríos, Lei Kang
exaly +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
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
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
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