Chirped-grating spectrometer-on-a-chip
WebAug 4, 2024 · An integrable on-chip spectrometer, based on a transversely-chirped-grating waveguide-coupler for the 400- to 700-nm visible spectral range is demonstrated. For a … WebApr 8, 2024 · 该等离子体“彩虹”芯片由在金属薄膜上制备的一维或二维渐变光栅组成。 通过使用普通相机拍摄的单幅图像和深度神经网络，这种基于图像的小型化系统可以精确地确定照明光源的光谱和偏振信息。 图1 用于智能片上光谱仪的plasmonic chirped grating示意图 研究成果以“Imaging-based intelligent spectrometer on a plasmonic “rainbow” chip”为题发 …
Chirped-grating spectrometer-on-a-chip
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WebJun 25, 2024 · Blazed gratings are the critical dispersion elements in spectral analysis instruments, whose performance depends on structural parameters and topography of the grating groove. In this paper, high diffraction efficiency silicon-blazed grating working at 800–2500 nm has been designed and fabricated. By diffraction theory analysis and … WebOct 1, 2024 · Chirping of the grating period further provides spectral focusing. The combined spectral and azimuthal focusing permits lens‐less recording of bright and high‐resolution spectra spanning across...
WebSep 29, 2024 · The design of the chirped grating was aimed at forming a sharply resolved spectral line (F) at a design distance of D = 8.8 mm from fiber cladding, as shown in … WebNov 14, 2024 · Fall 11-14-2024 Abstract In this dissertation we demonstrate a new structure based on waveguide coupling atop a silicon wafer using a chirped grating to provide the …
WebAug 1, 2024 · This website requires cookies, and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our … WebApr 5, 2024 · a Illustration of the plasmonic chirped grating being used as an on-chip spectrometer. b SEM images of the plasmonic grating fabricated on a thin Ag film via …
WebNov 16, 2024 · We present a novel spectral imaging technique based on nondegenerate two-photon absorption of temporally chirped optical MIR pulses. This approach avoids complex image processing or …
WebMay 28, 2024 · Single chip integrated spectrometers are critical to bring chemical and biological sensing, spectroscopy, and spectral imaging into robust, compact and cost … dickinson state university football scoreWebSep 10, 2024 · The spectrometer integrates an on-chip dispersive echelle grating with a single-element propagating superconducting nanowire detector of ultraslow-velocity for mapping the dispersed photons... dickinson state university spring breakWebAug 17, 2024 · Chirped-grating spectrometer-on-a-chip. Shima Nezhadbadeh, A. Neumann, +1 author S. Brueck Published 17 August 2024 Physics Optics express We … citrix receiver win11WebDec 15, 2008 · A strongly coupled, chirped Bragg grating made by sinusoidally modulating the sidewalls of a silicon waveguide is designed, fabricated, and experimentally … dickinson state university football coachesWebApr 10, 2024 · Schematics of the contra-directionally coupled chirped Bragg grating waveguide are shown in Fig. 1.Conventional structure, as shown in Fig. 1a, consists of two tapered strip waveguides with widths ranging from w 1 and w 2 to w 1 + Δw and w 2 + Δw, respectively.Bragg gratings with a period Λ, duty of 50%, and width w a are introduced … dickinson state university rodeo teamWebAug 17, 2024 · A transversely chirped grating is fabricated, in a single-step optical lithography process, on a portion of the waveguide to provide angle and wavelength … dickinson state university staff directoryWebJun 14, 2024 · An integrable on-chip spectrometer, based on a transversely-chirped-grating waveguide-coupler for the 400- to 700-nm visible spectral range is … dickinson state university softball players