Results 11 to 20 of about 26,576 (254)
[INVITED] Subwavelength structures for silicon photonics biosensing
Optics & 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
Wangüemert-Pérez, J. Gonzalo +8 more
exaly +5 more sources
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.
Robert Halir +7 more
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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 +7 more
openaire +4 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
Results in Physics, 2019 We propose a method of fabricating subwavelength structures based on multi-exposure surface plasmon interference lithography. This new nanolithography technique fabricates various subwavelength structures breaking the diffraction limit, which differs ...
Xiangxian Wang +7 more
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Subwavelength metamaterial engineering for silicon photonics [PDF]
, 2017 Waveguides structured at the subwavelength scale frustrate di raction and behave as optical metamaterials with controllable refractive index. These structures have found widespread applications in silicon photonics, ranging from sub-decibel e ciency ...
Cheben, Pavel +14 more
core +1 more source
Suspended Dielectric Mirrors at Deep Subwavelength Scale
IEEE Photonics Journal, 2018 Reduction in the thickness of air-suspended mirrors to the deep subwavelength scale can facilitate efficient optical and mechanical design. The thinner the mirror, the smaller is its mass, and the more excellent mechanical properties it presents.
Ze Lin Tan +3 more
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A Mid-Infrared Dual-Band Filter With Ultra-High Resolving Power
IEEE Photonics Journal, 2020 A mid-infrared (mid-IR) dual-band filter with ultra-high resolving power is designed and numerically investigated. It is composed of an Al2O3 layer between a gold grating and a CaF2 substrate.
Xin He +4 more
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Wide band UV/Vis/NIR blazed-binary reflective gratings: two lithographic techniques investigation [PDF]
EPJ Web of Conferences, 2021 We report on subwavelength reflective gratings for hyperspectral applications operating in the 340 nm-1040 nm spectral range. The blazed grating period is 30 μm and is composed of 2D subwavelength binary structures with sizes in-between 120 nm and 350 nm.
Lee Mane-Si Laure +11 more
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IEEE Photonics Journal, 2019 We present the realization of a high-efficiency, compact, and thermally tunable unidirectional launcher of surface plasmon polaritons (SPPs) in a double-slit structure filled with phase change materials (PCMs). PCMs such as VO2 provide a feasible way for
Mehdi Afshari-Bavil +4 more
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