Results 81 to 90 of about 2,375 (203)
Laser &Photonics Reviews, EarlyView.Van der Waals ferroelectric NbOX2 thin films exhibit phonon‐resonance enhanced electro‐optic responses, 332 pm/V at 3.1 THz (NbOI2) and 192 pm/V at 3.7 THz (NbOBr2), the highest among vdW materials, and show 4% non‐resonant SHG modulation together with resonant phonon‐enhancement under a 150 kV/cm THz pump.
Baolong Zhang +3 more
wiley +1 more source
On-chip monolithic wide-angle field-of-view metalens based on quadratic phase profile
AIP Advances, 2020 With the rapid development of integrated optics, bulky and curved traditional lenses cannot meet the requirements of on-chip optical systems. Alternatively, the metalenses based on the artificial subwavelength structure possess ultra-thin and lightweight
Cong Chen +7 more
doaj +1 more source
Laser &Photonics Reviews, EarlyView.Bayesian optimization combined with in situ quantitative phase imaging enables autonomous correction of layer‐height deviations in projection multi‐photon lithography. By jointly tuning model parameters and grayscale exposure settings, the method achieves more uniform and accurate layers within 300 prints, offering a fast, data‐efficient route to ...
Jason E. Johnson, Xianfan Xu
wiley +1 more source
Polarization-separating Alvarez metalens
Optics ExpressThe rapid advancements in optical communication technologies have highlighted traditional optical components’ limitations, particularly in size, adaptability, and integration capabilities, underscoring the need for more compact and versatile solutions. Metalenses offer a promising pathway to address these challenges, with their ability to provide high ...
Mitsutoshi Hada +4 more
openaire +2 more sources
Achromatic metalens imaging for camera system
, 2021 Metalens is one of the most advanced lens technology. Basing on the technique of metasurface, the metalens can realize a negative refraction, which can provide a larger bending angle as well as higher numerical aperture(NA) compared with traditional lens.
Tao, Rufei
core
All dielectric reflective metalens based on multilayer meta-atoms
, 2023 While transmission-mode metalenses have been extensively studied, reflection-mode metalenses remain almost unexplored, presenting advantages in terms of improved efficiency and reduced complexity.
J. Basilio-Ortiz (17094811) +1 more
core +1 more source
Multispectral Concentric Grafted Perfect Vector Vortex Beam
Laser &Photonics Reviews, EarlyView.Multispectral structured light offers powerful opportunities for increasing information capacity. A multispectral concentric grafted perfect vector vortex beam is proposed to engineer topological charges and polarization. A metasurface can graft different perfect vector vortex beams across concentric spatial regions and extend this concept to ...
Guanchao Wang +6 more
wiley +1 more source
Metalens-based optical coherence tomography for high-resolution biomedical imaging
The American Society of Cancer reports an annual average of 240,000 breast cancer diagnoses in the USA, resulting in approximately 42,000 women and 500 men succumbing to the disease each year.
Mehmood, Muhammad Qasim +5 more
core +1 more source
Grating‐Lens Empowered Metafiber for Large‐Angle Light Collection With 3D Nanoprinted Structures
Laser &Photonics Reviews, EarlyView.A grating‐lens‐based Metafiber enables efficient light coupling into single‐mode fibers at large incidence angles. By combining diffraction and focusing on the fiber facet using a 3D nanoprinted holographic structure, light is selectively coupled only at specific angles while suppressing unwanted signals. This approach achieves high coupling efficiency
Jun Sun, Markus A. Schmidt
wiley +1 more source
Revolutionizing optical wireless communication with silicon-based spin-encoded metalens
Optical wireless communication (OWC) or free space optical (FSO) communication systems transmit information through the atmosphere using light beams in the visible or near-infrared (NIR) spectrum.
Mehmood, Muhammad Qasim +4 more
core +1 more source