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Showing 1 to 5 of 5 for “"Subwavelength gratings"”.
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Theory and simulation of subwavelength high contrast gratings and their applications in vertical-cavity surface-emitting laser devices
… fully explore the qualities and applications of subwavelength gratings. Subwavelength gratings are diffraction gratings with physical dimensions less than the wavelength of incident light. It has been found that by tailoring specific dimension parameters, a number of different reflection profiles …
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Concentric Microresonators Design For Dispersion Engineering and Scalable Electron-Beam Lithography for Si and SiN Photonic Platforms
… applications, waveguides, microresonators, and subwavelength gratings (SWGs) serve as the fundamental building blocks for realizing diverse on-chip optical functionalities. Despite extensive advances in design and fabrication, further progress requires new approaches that integrate accurate …
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A study of novel mid-infrared optical devices: Wave plates and tunable filters
… problem by proposing two novel structures using subwavelength gratings. First, we look at a wave plate design that uses a physical path length difference to impose a phase shift between the components of incident light as an alternative to costly birefringent crystals. Then, we look at a crossed …
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Subwavelength antireflection and polarization grating elements: Analysis and fabrication
Surface-relief, submicron period transmission gratings are fabricated in fused silica. A rigorous vector diffraction code, based on the coupled-wave analysis technique, is used to design and analyze the surface relief gratings. When light with wavelength greater than the grating period encounters …
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Enhanced Rainbow Trapping in Width-graded Chirped MIM Nano-gratings for High-sensitivity Multiwavelength Bio-molecular Detection
… investigations of plasmonic width-graded nano-gratings vis-à-vis a nanophotonic sensing platform amenable for integration within a Lab-on-a-Chip Point-of-Care system. Theoretically, we delineate the four principal surface plasmon polariton coupling and its interaction mechanisms in …