Search Results - "Ryckman, D"
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Scalable and CMOS compatible silicon photonic physical unclonable functions for supply chain assurance
Published in Scientific reports (19-09-2022)“…We demonstrate the uniqueness, unclonability and secure authentication of N = 56 physical unclonable functions (PUFs) realized from silicon photonic moiré…”
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Ultra-compact silicon photonic devices reconfigured by an optically induced semiconductor-to-metal transition
Published in Optics express (06-05-2013)“…Vanadium dioxide (VO(2)) is a promising reconfigurable optical material and has long been a focus of condensed matter research owing to its distinctive…”
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Behavioral responses of blue-winged teal and northern shoveler to unmanned aerial vehicle surveys
Published in PloS one (19-01-2022)“…Unmanned aerial vehicles (UAVs) have become a popular wildlife survey tool. Most research has focused on detecting wildlife using UAVs with less known about…”
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Robust optical physical unclonable function using disordered photonic integrated circuits
Published in Nanophotonics (Berlin, Germany) (01-09-2020)“…Physical unclonable function (PUF) has emerged as a promising and important security primitive for use in modern systems and devices, due to their increasingly…”
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Localized Field Enhancements in Guided and Defect Modes of a Periodic Slot Waveguide
Published in IEEE photonics journal (01-12-2011)“…We present a periodic slot waveguide for achieving enhanced light-matter interaction that provides significant localized field and power density enhancements…”
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Effective medium metasurfaces using nanoimprinting of the refractive index: design, performance, and predictive tolerance analysis
Published in Optical materials express (01-04-2024)“…Production of flat optics incorporating subwavelength features, particularly at visible frequencies, remains a significant challenge. Here, we establish a…”
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Hyperchromatic structural color for perceptually enhanced sensing by the naked eye
Published in Proceedings of the National Academy of Sciences - PNAS (01-12-2020)“…Colorimetric sensors offer the prospect for on-demand sensing diagnostics in simple and low-cost form factors, enabling rapid spatiotemporal inspection by…”
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Roughness Suppression in Electrochemical Nanoimprinting of Si for Applications in Silicon Photonics
Published in Advanced materials (Weinheim) (01-10-2022)“…Metal‐assisted electrochemical nanoimprinting (Mac‐Imprint) scales the fabrication of micro‐ and nanoscale 3D freeform geometries in silicon and holds the…”
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Multifunctional focusing and accelerating of light with a simple flat lens
Published in Optics express (12-10-2020)“…The wavefronts emerging from phase gradient metasurfaces are typically sensitive to incident beam properties such as angle, wavelength, or polarization. While…”
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Low mode volume slotted photonic crystal single nanobeam cavity
Published in Applied physics letters (13-08-2012)“…We present and experimentally demonstrate a slotted photonic crystal single nanobeam cavity in silicon. The slot geometry is exploited to achieve ultra-small…”
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Optically resonant all-dielectric diabolo nanodisks
Published in Applied physics letters (27-06-2022)“…Optically resonant all-dielectric nanostructures attractively exhibit reduced losses compared to their plasmonic counterparts; however, achieving strong field…”
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Random Coherent Perfect Absorption with 2D Atomic Materials Mediated by Anderson Localization
Published in ACS photonics (21-02-2018)“…Tailoring the spatiotemporal confinement of light with two-dimensional (2D) atomic materials is critical to harnessing their unique and attractive…”
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Moiré Effects in Silicon Photonic Nanowires
Published in ACS photonics (20-04-2022)“…Photonic moiré lattices offer an attractive platform for manipulating the flow and confinement of light from remarkably simple device geometries. This…”
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Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing
Published in Optics express (05-08-2019)“…Guided wave-optics has emerged as a promising platform for label free biosensing. However, device sensitivity toward surface-bound small molecules is directly…”
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Quantitative Dynamic Structural Color: Dual‐Band Hyperchromatic Sensing with Mesoporous Metamaterials
Published in Advanced optical materials (01-09-2024)“…Dynamic and responsive structural color devices present promising opportunities for sensing and display technologies, with applications including point‐of‐care…”
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A size selective porous silicon grating-coupled Bloch surface and sub-surface wave biosensor
Published in Biosensors & bioelectronics (15-03-2014)“…A porous silicon (PSi) grating-coupled Bloch surface and sub-surface wave (BSW/BSSW) biosensor is demonstrated to size selectively detect the presence of both…”
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Digital and Gradient Refractive Index Planar Optics by Nanoimprinting Mesoporous Silicon
Published in Advanced optical materials (19-12-2022)“…We report the realization of digital and gradient index flat‐optics and planar waveguides using the ‘nanoimprinting refractive index’ (NIRI) technique applied…”
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Photothermal optical modulation of ultra-compact hybrid Si-VO₂ ring resonators
Published in Optics express (04-06-2012)“…We demonstrate photothermally induced optical switching of ultra-compact hybrid Si-VO₂ ring resonators. The devices consist of a sub-micron length ~70 nm thick…”
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Direct Imprinting of Porous Substrates: A Rapid and Low-Cost Approach for Patterning Porous Nanomaterials
Published in Nano letters (11-05-2011)“…This work describes a technique for one-step, direct patterning of porous nanomaterials, including insulators, semiconductors, and metals without the need for…”
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