Results 161 to 170 of about 31,877 (296)
Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions
Journal of Raman Spectroscopy, EarlyView.Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong +5 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.A GAN‐based framework is proposed that tackles spatiotemporal instabilities of scattering media and addresses decorrelation between training and testing data (no overlap between their collection periods). The trained GAN non‐holographically retrieves high‐fidelity human face images from unstable scattering media and effectively addresses speckle ...
Qi Zhao +12 more
wiley +1 more source
Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems
Laser &Photonics Reviews, EarlyView.This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley +1 more source
Holographic
, 2013 K. Karami +3 more
openalex +1 more source
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 +6 more
wiley +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 +6 more
wiley +1 more source
Modular sub-wavelength diffractive light modulator for high-definition holographic displays [PDF]
, 2013 Richard Stahl +8 more
openalex +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 +6 more
wiley +1 more source
Direct fringe writing architecture for photorefractive polymer-based holographic displays: analysis and implementation [PDF]
, 2013 Sundeep Jolly +3 more
openalex +1 more source