Results 91 to 100 of about 239,453 (286)
, 2017 We describe the preliminary optimized layout for a partially optimized concept of an optical-8m class VLT-like 2x2 segmented camera where each channel is assisted by an equivalent of an MCAO system where the ground layer correction is commonly employed ...
Bergomi, Maria +12 more
core +1 more source
Multi‐Wavelength Achromatic 3D Meta‐holography with Zoom Function
Advanced Science, EarlyView.Due to the wavelength mismatch, chromatic aberrations are inevitable in multi‐wavelength meta‐holography. Moreover, since the meta‐hologram is difficult to be refreshed, zoom meta‐holography has not been reported to date. This study proposes a multi‐wavelength achromatic 3D meta‐holography with a zoom function, breaking through both the chromatic ...
Chao Liu +17 more
wiley +1 more source
BMC Ophthalmology, 2021 Background To compare the correction effect and optical quality after small-incision lenticule extraction (SMILE) and femtosecond laser assisted laser in situ keratomileusis (FS-LASIK) for high myopia.
Yewei Yin +11 more
doaj +1 more source
Achromatic 3D Multi‐Color Orbital Angular Momentum Holography
Advanced Science, EarlyView.This work presents an achromatic 3D multicolor orbital angular momentum (OAM) holography based on spatial multiplexing. By integrating wavelength‐specific lens functions onto monochromatic Fourier OAM‐dependent holograms and high‐resolution spatial discretization and interleaving via two‐photon lithography (TPL), the approach addresses axial chromatic ...
Hang Su +5 more
wiley +1 more source
Aberration measurement and correction on a large field of view in fluorescence microscopy [PDF]
arXiv, 2021 The aberrations induced by the sample and/or by the sample holder limit the resolution of optical microscopes. Wavefront correction can be achieved using a deformable mirror with wavefront sensorless optimization algorithms but, despite the complexity of these systems, the level of correction is often limited to a small area in the field of view of the
arxiv
A Physics‐Informed Neural Network as a Digital Twin of Optically Turbid Media
Advanced Intelligent Systems, EarlyView.In this work, a physics‐informed neural network is presented as a digital twin for modeling and studying optically turbid media without requiring reference light. The model learns and integrates complex wavefront modulation behavior, ensuring robustness without explicit calibration.
Mohammadrahim Kazemzadeh +4 more
wiley +1 more source
On-sky demonstration of low-order wavefront sensing and control with focal plane phase mask coronagraphs [PDF]
, 2015 The ability to characterize exoplanets by spectroscopy of their atmospheres requires direct imaging techniques to isolate planet signal from the bright stellar glare.
Baudoz, Pierre +8 more
core +4 more sources
Advanced Contactless Bioassembly Approaches: Leveraging Sound, Optical, and Magnetic Fields
Advanced NanoBiomed Research, EarlyView.This review explores innovative contactless bioassembly techniques driven by sound, light, and magnetic fields, which enable the precise organization of cells, biomaterials, and bioactive substances into complex 3D structures. These technologies, crucial for in vitro modeling and regenerative medicine, are examined in detail, highlighting their ...
Micaela Natta +4 more
wiley +1 more source
Oftalʹmologiâ, 2020 Purpose. Comparative analysis of the wavefront aberrations and ophthalmoergonomic parameters after excimer laser and orthokeratological correction of myopia in patients aged over 35 years.Patients and methods. The study included 21 patients: 12 (24 eyes)
E. P. Tarutta +5 more
doaj +1 more source
Multiple field-of-view MCAO for a Large Solar Telescope: LOST simulations
, 2010 In the framework of a 4m class Solar Telescope we studied the performance of the MCAO using the LOST simulation package. In particular, in this work we focus on two different methods to reduce the time delay error which is particularly critical in solar ...
Berrilli, Francesco +3 more
core +1 more source