Nearly 180° Field‐of‐View Metalens for Miniaturized Imaging Systems
Laser &Photonics Reviews, EarlyView.A compact, single‐layer metalens is developed with an ultra‐wide field of view of ≈180 degrees. Utilizing a unique quadratic phase profile, this metalens overcomes traditional issues like axial and color dispersion. It operates across red, green, and blue wavelengths with non‐polarized light, promising enhanced imaging capabilities for integration into
Azhar Javed Satti +9 more
wiley +1 more source
FlyEyes: A CCD-based Wavefront Sensor for PUEO, the CFHT Curvature AO System [PDF]
, 2011 Olivier Lai +14 more
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A Dual‐Programmable Metasurface with Duplex Beam Steering for Full‐Space Terahertz Communications
Laser &Photonics Reviews, EarlyView.A dual‐programmable terahertz metasurface enables independent control of transmission and reflection beam steering. It breaks through the limitations in resonant tunability by polarization allocation with 2D‐electron‐gas tuning, enabling a single resonator to incorporate bidirectional operating modes.
Luyang Wang +15 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
Interferometric wavefront sensors for high contrast imaging
, 2006 K. L. Baker
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The AOLI low-order non-linear curvature wavefront sensor: a method for high sensitivity wavefront reconstruction [PDF]
, 2012 Jonathan Crass +15 more
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Laser &Photonics Reviews, EarlyView.This study introduces a humidity‐responsive optical imaging technique capable of dynamically switching between edge detection and bright‐field imaging modes. Utilizing humidity‐induced modulation of refractive index and polarization‐dependent beam shaping, tunable optical imaging is achieved through controlled beam splitting governed by the spin Hall ...
Yeseul Kim +10 more
wiley +1 more source
Detection of Micro-Probe Displacement Using a Shack-Hartmann Wavefront Sensor [PDF]
, 2012 Hanno Dierke +2 more
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Investigation on the wavefront stability of wavefront sensors
, 2006 This dissertation mainly describes the wavefront stability of light source for the wavefront sensing systems. Several investigations on three different light sources, white light, laser diode and He-Ne laser have been carried out for two wavefront sensing systems, Hartmann and Shack-Hartmann systems.
openaire +1 more source
Uncovering Hidden Resonances in Non‐Hermitian Systems with Scattering Thresholds
Laser &Photonics Reviews, EarlyView.The points where diffraction orders emerge or vanish in the propagating spectrum of periodic non‐Hermitian systems are referred to as scattering thresholds. Close to these branch points, resonances from different Riemann sheets can tremendously impact the optical response.
Fridtjof Betz +7 more
wiley +1 more source