Results 141 to 150 of about 6,266 (254)

Customizing 3D Polarization Structures at Second Harmonic Frequency

Laser &Photonics Reviews, EarlyView.
The nonlinear optical metasurfaces that can generate second harmonic waves (SHWs) and manipulate 3D polarization structures are designed and fabricated. Based on the concept of nonlinear geometric phase, the desired phase distributions of the SHWs are encoded onto the metasurfaces by using gold C3 meta‐atoms.
Rong Rong, Yan Li, Zixian Hu, Kingfai Li, Guixin Li, Shumei Chen, Xianzhong Chen   +6 more
wiley   +1 more source

Are physiological oscillations physiological?

The Journal of Physiology, EarlyView., 2023
Abstract figure legend Mechanisms and functions of physiological oscillations. Abstract Despite widespread and striking examples of physiological oscillations, their functional role is often unclear. Even glycolysis, the paradigm example of oscillatory biochemistry, has seen questions about its oscillatory function.
Lingyun (Ivy) Xiong, Alan Garfinkel
wiley   +1 more source

Evaluation Method for Resin Mold Using Reflective Wavefront Sensor. [PDF]

Sensors (Basel)
Tatsumi K, Saeki K, Kubota S, Kaneda Y, Uno K, Ohnuma K, Shiina T.   +6 more
europepmc   +1 more source

On Phase Unwrapping via Digital Wavefront Sensors [PDF]

Simon Hubmer, Victoria Hutterer, Ronny Ramlau, Ekaterina Sherina, Bernadett Stadler   +4 more
openalex   +1 more source

Optical design and laboratory characterisation of CAWS: the Calibration and Alignment Wavefront Sensor for high-order adaptive optics [PDF]

, 2017
Nicolás Dubost, Nazim A. Bharmal, Marc Dubbeldam, Daniel Hölck, Richard M. Myers   +4 more
openalex   +1 more source

Orbital Angular Momentum Meta‐Holography with Full‐Polarization Control

Laser &Photonics Reviews, EarlyView.
This work demonstrates full‐polarization‐controlled orbital angular momentum (OAM) holography using a single‐layer dielectric metasurface. By independently modulating the complex‐amplitude distributions of two circular polarizations, arbitrary spatially varying polarization is achieved while preserving OAM properties.
Yue Han, Sheng Ye, Weiping Wan, Mingna Xun, Yuqing He, Qihuang Gong, Yan Li   +6 more
wiley   +1 more source

Accounting for focal shift in the Shack-Hartmann wavefront sensor. [PDF]

Opt Lett, 2019
Akondi V, Dubra A.
europepmc   +1 more source

High‐Resolution 3D Imaging with Tunable Point Cloud Projection Based on Meta‐Device

Laser &Photonics Reviews, EarlyView.
A meta‐based tunable point cloud projection that enables high‐resolution 3D imaging through a dynamic meta‐device is demonstrated. By adjusting spatial sampling, the system achieves significantly sharper reconstructions while remaining compact. The innovation opens new possibilities for applications such as facial recognition, augmented reality, and ...
Yin Zhou, Zhengdong Chen, Jialuo Cheng, Qican Zhang, Zihan Geng, Zhoujie Wu, Mu Ku Chen   +6 more
wiley   +1 more source

Reinforcement Learning Enabled Nanophotonic Devices

Laser &Photonics Reviews, EarlyView.
A reinforcement learning algorithm is used to design photonic devices. The method creates metagratings and grating couplers that efficiently control both the direction and polarization of light. Further, a reinforcement learning approach is used to design in‐plane integrated photonic devices. This approach paves the way for advanced photonic components
Zi Wang, Junyeob Song, Minsuk Lee, Wenqi Zhu, Amit Agrawal   +4 more
wiley   +1 more source

Measurement of ocular aberration in noise based on deep learning with a Shack-Hartmann wavefront sensor. [PDF]

Biomed Opt Express
Zhang H, Yang Y, Zhang Z, Yin C, Wang S, Wei K, Chen H, Zhao J.   +7 more
europepmc   +1 more source