Results 1 to 10 of about 3,540,237 (277)
Subwavelength-Grating Metamaterial Structures for Silicon Photonic Devices [PDF]
Proceedings of the IEEE, 2018 Segmenting silicon waveguides at the subwave-length scale produce an equivalent homogenous material. The geometry of the waveguide segments provides precise control over modal confinement, effective index, dispersion and birefringence, thereby opening up new approaches to design devices with unprecedented performance.
Alejandro Ortega-Moñux +2 more
exaly +8 more sources
[INVITED] Subwavelength structures for silicon photonics biosensing
Optics and Laser Technology, 2019 Silicon photonic biosensors hold the potential for highly accurate, yet low cost point-of-care devices. Maximizing the sensitivity of the sensing chips while reducing the complexity and cost of the read-out system is pivotal to realize this potential. Here we present an extensive analysis, both from a practical and a theoretical perspective, of current
Jonas Leuermann +2 more
exaly +4 more sources
Gallium nanostructure fabrication by irradiation with femtosecond laser [PDF]
Scientific ReportsGallium surfaces were irradiated with a 350 fs, 1040 nm femtosecond laser while submerged in liquid nitrogen, producing laser-induced periodic surface structures (LIPSS) spanning multiple length scales. Scanning electron microscopy reveals a hierarchical
Thomas Yang, Zibo Wang, Mengyan Shen
doaj +2 more sources
Subwavelength structured silicon waveguides and photonic devices
Nanophotonics, 2020 Subwavelength structures such as subwavelength gratings (SWGs) and subwavelength metamaterials are capable of tailoring the optical properties of materials and controlling the flow of light at the nanoscale.
Sun Lu +4 more
doaj +2 more sources
Optica, 2017 Femtosecond laser-induced periodic subwavelength and deep-subwavelength structures (SWS; DSWS) have attracted attention due to their subdiffraction resolution of surface and inner volume patterning. Understanding of the richness of laser–matter interaction during formation of SWS and DSWS is another quest which can help to find control for nanoscale ...
Lei Wang, Qi-Dai Chen, Hong-Bo Sun
exaly +3 more sources
Micromachines, 2011 Research in recent years has greatly advanced the understanding and capabilities of multi-beam interference (MBI). With this technology it is now possible to generate a wide range of one-, two-, and three-dimensional periodic optical-intensity ...
Thomas K. Gaylord, Guy M. Burrow
doaj +3 more sources
Designing Anisotropy with Waveguide Subwavelength Structures [PDF]
2018 20th International Conference on Transparent Optical Networks (ICTON), 2018 Ministerio de Economía y Competitividad, Programa Estatal de Investigación, Desarrollo e Innovación Orientada a los Retos de la Sociedad (cofinanciado FEDER), Proyectos TEC2016-80718-R, TEC2015-71127-C2-1-R (FPI scholarship BES-2016-077798), and IJCI-2016-30484, the Community of Madrid (S2013/MIT-2790), the Universidad de Málaga.
Robert Halir +8 more
openaire +3 more sources
Ag-Yb Alloy-Novel Tunable Plasmonic Material
Photonics, 2021 Metals are commonly used in plasmonic devices because of their strong plasmonic property. However, such properties are not easily tuned. For applications such as spatial light modulators and beam steering, tunable plasmonic properties are essential, and ...
Suetying Ching +3 more
doaj +1 more source
Subwavelength structures for taper waveguides
Journal of Physics: Conference Series, 2022 Abstract In Photonic Integrated Circuits (PICs) it is often necessary some sort of mismatch adaptation between waveguides of different cross-sections. There are several instances of such a designing constraint, being the vertical coupling between the PIC and an optical fibre probably the most representative of all examples.
Lourenço, Paulo +4 more
openaire +2 more sources
Single-Cycle Gap Soliton in a Subwavelength Structure [PDF]
Physical Review Letters, 2010 We demonstrate that a single sub-cycle optical pulse can be generated when a pulse with a few optical cycles penetrates through resonant two-level dense media with a subwavelength structure. The single-cycle gap soliton phenomenon in the full Maxwell-Bloch equations without the frame of slowly varying envelope and rotating wave approximations is ...
Xie, X., Macovei, M.
openaire +4 more sources