Results 141 to 150 of about 59,466 (346)

Concentric Perfect Optical Vortex Beam Generated by a Digital Micromirrors Device

IEEE Photonics Journal, 2017
We propose a kind of perfect optical vortex beam (POV) generated via Fourier transformation of Bessel-Gauss (BG) beams through encoding of the amplitude of the optical field with binary amplitude digital micromirrors device.
Ziqiang Xin, Chonglei Zhang, Xiaocong Yuan   +2 more
doaj   +1 more source

Advancement in Colloidal Metasurfaces: Approaches for Scalable Photonic Devices

Advanced Materials Interfaces, EarlyView.
This perspective explores colloidal metasurfaces composed of plasmonic and emitting nanoparticles assembled by laser interference lithography and template‐assisted self‐assembly methods. Precise design strategies achieve directional emission, low‐threshold lasing, and tunable photonic bandgaps.
Sezer Seçkin, Swagato Sarkar, Tobias A.F. König   +2 more
wiley   +1 more source

Fourier imaging for nanophotonics

Nanophotonics
Abstract Standard optical characterization and spectroscopy techniques rely on the measurement of specular reflection, transmission, or emission at normal incidence. Although the usefulness of these methods is without question, they do not provide information on the angular dependence of the scattered light and, therefore, miss crucial ...
Sébastien Cueff, Lotfi Berguiga, Hai Son Nguyen   +2 more
openaire   +3 more sources

Mie‐Resonant Metasurfaces with Controlled Silicon Oxidation in Electron‐Beam Deposition

Advanced Materials Interfaces, EarlyView.
Electron‐beam deposition is optimized to prevent silicon oxidation by controlling chamber pressure and deposition rate, yielding refractive index values comparable to other methods. This tunability enables precise control of optical properties. Mie‐resonant metasurfaces exhibit strong, tunable collective resonances, allowing the fabrication of silicon ...
Neal Raney, Viktoriia E. Babicheva
wiley   +1 more source

Photonic Crystal Enhanced Microscopy on a 2D Photonic Crystal Surface

Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This work demonstrates the design, fabrication, and the first‐time test of a 2D photonic crystal surface for photonic resonator absorption microscopy. The designed surface uniformly enhances electromagnetic near fields, achieving > 100% improved detecting uniformity for surface‐captured AuNPs from a blocking biosensor assay aimed for detecting SARS‐CoV‐
Weinan Liu, Siyan Li, Edmond Chow, Seemesh Bhaskar, Ying Fang, Brian T. Cunningham   +5 more
wiley   +1 more source

Advanced Optical Integration Processes for Photonic‐Integrated Circuit Packaging

Advanced Materials Technologies, EarlyView.
Photonic integrated chip packaging is a growing technology that helps make devices faster, more efficient, and more compact by using light instead of electricity. This review highlights recent progress in making these chips work better at different levels, discusses current challenges like heat and alignment, and looks at future possibilities for ...
Keuntae Baek, Minhyeok Kim, Hak‐Sung Kim, Jinho Ahn, Hongyun So   +4 more
wiley   +1 more source

Nanophotonic Image Sensors

Small, 2016
The increasing miniaturization and resolution of image sensors bring challenges to conventional optical elements such as spectral filters and polarizers, the properties of which are determined mainly by the materials used, including dye polymers. Recent developments in spectral filtering and optical manipulating techniques based on nanophotonics have ...
Xin Hu, David R. S. Cumming, Long Wen, Yan Yu, Qin Chen   +4 more
openaire   +3 more sources

Dual Resonant Plasmonic Infrared Pixels for Selective Optical Encoding

Advanced Materials Technologies, EarlyView.
This study presents dual‐resonant plasmonic nanostructures for advanced optical encoding in the mid‐infrared. By optimizing plasmonic resonances in nano‐antennas within ring cavities, selective and simultaneous tunability in both the MWIR and LWIR regions is achieved.
Goekalp Engin Akinoglu, Leshy Patchett, Timothy Denis James, Paul Mulvaney, James Andell Hutchison   +4 more
wiley   +1 more source

Real-Time and In-Flow Sensing Using a High Sensitivity Porous Silicon Microcavity-Based Sensor

Sensors, 2017
Porous silicon seems to be an appropriate material platform for the development of high-sensitivity and low-cost optical sensors, as their porous nature increases the interaction with the target substances, and their fabrication process is very simple ...
Raffaele Caroselli, David Martín Sánchez, Salvador Ponce Alcántara, Francisco Prats Quilez, Luis Torrijos Morán, Jaime García-Rupérez   +5 more
doaj   +1 more source

Silicon‐Integrated Next‐Generation Plasmonic Devices for Energy‐Efficient Semiconductor Applications

Advanced Materials Technologies, EarlyView.
Silicon (Si)‐integrated plasmonics offer a pathway to next‐generation, energy‐efficient semiconductor applications. This review highlights advances using complementary metal–oxide–semiconductor (CMOS)‐compatible materials like transparent conductive oxides and novel architectures, particularly coupled hybrid plasmonic waveguides (CHPWs).
Nasir Alfaraj, Amr S. Helmy
wiley   +1 more source