High‐Speed Multimode Fiber Imaging Using Binary‐Modulated Silicon Photonics Optical Phased Array
Laser &Photonics Reviews, EarlyView.A multimode fiber imaging system at 500 frames per second is experimentally demonstrated. It is enabled by a p‐i‐n diode‐based silicon photonics optical phased array. To simplify the electrical driving of p‐i‐n diodes, a binary modulation method with a costumed‐designed digital driver circuit is proposed. Reconstruction of each frame takes only 0.1 ms,
Gaolei Hu +3 more
wiley +1 more source
Objective quantification and spatial mapping of cataract with a Shack-Hartmann wavefront sensor. [PDF]
Sci Rep, 2020 Holló CT +7 more
europepmc +1 more source
FlyEyes: A CCD-based Wavefront Sensor for PUEO, the CFHT Curvature AO System [PDF]
, 2011 Olivier Lai +14 more
openalex +1 more source
3D Dielectric Chiral Metamaterials Achieving Nondispersive Near‐Zero Ellipticity
Laser &Photonics Reviews, EarlyView.Broadband and high‐transmission‐efficiency optical activity (OA) is a critical functionality for numerous applications but is challenging to achieve. By engineering circularly polarized (CP) eigenstates in three‐dimensional (3D) dielectric helices, a 3D‐printed ceramic metamaterial is demonstrated for broadband OA with nondispersive near‐zero ...
Kang Du +8 more
wiley +1 more source
The AOLI low-order non-linear curvature wavefront sensor: a method for high sensitivity wavefront reconstruction [PDF]
, 2012 Jonathan Crass +15 more
openalex +1 more source
Discrete Chiral Ballistic Polariton Laser
Laser &Photonics Reviews, EarlyView.Planar microcavities in the strong light–matter coupling regime exhibit exciton‐polariton modes with a strong chiral response toward circularly polarized light. This feature is exploited alongside inherent spin‐orbit coupling of cavity light to generate giant discrete optical vortices in polygonal arrays of exciton‐polariton condensates.
Zuzanna Werner +5 more
wiley +1 more source
Interferometric wavefront sensors for high contrast imaging
, 2006 K. L. Baker
openalex +1 more source
Detection of Micro-Probe Displacement Using a Shack-Hartmann Wavefront Sensor [PDF]
, 2012 Hanno Dierke +2 more
openalex +1 more source
Simulated radiation levels and patterns of MRI without a Faraday shielded room
Magnetic Resonance in Medicine, EarlyView.Abstract Purpose We characterize electromagnetic (EM) radiation patterns and levels in conventional MRI systems as a function of field strength and load symmetry, providing a framework for mitigation strategies allowing operation without a shielded room. Methods We simulated the far‐field radiation pattern and fields at a 10 m radius (|E|10m and |B|10m)
Ehsan Kazemivalipour +2 more
wiley +1 more source
Fast single pixel modal wavefront sensing using neural networks [PDF]
arXivDynamic wavefront aberrations negatively impact a wide range of optical applications including astronomy, optical free-space telecommunications and bio-imaging. Wavefront errors can be compensated by an adaptive optics system comprised of a deformable mirror and wavefront sensor connected by a control loop. For satellite optical communications (SatCom),
arxiv