Results 21 to 30 of about 3,010,687 (303)
Lines of Quasi-BICs and Butterworth Line Shape in Stacked Resonant Gratings: Analytical Description
Photonics, 2023 We propose analytical approximations of the reflection and transmission spectra of a stacked dielectric diffraction grating consisting of two identical resonant guided-mode gratings with a Lorentzian line shape.
Nikita V. Golovastikov +3 more
doaj +1 more source
InP monolithically integrated wavelength selector based on periodic optical filter and optical switch chain [PDF]
, 2011 We present an InP monolithically integrated wavelength selector that implements a binary search for selecting N modulated wavelengths. The wavelength selector filter is realized using log2N an active Mach-Zehnder interferometer filter and broadband ...
K.A. Williams +19 more
core +2 more sources
Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]
, 2007 Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll +13 more
core +1 more source
Sensors, 2018 A tunable Fabry-Perot interferometer (TFPI)-type wavelength filter designed for the long-wavelength infrared (LWIR) region is fabricated using micro electro mechanical systems (MEMS) technology and the novel polydimethylsiloxane (PDMS) micro patterning ...
Dong Geon Jung +4 more
doaj +1 more source
Results of the Optical Downlink Experiment KIODO from OICETS Satellite to Optical Ground Station Oberpfaffenhofen (OGS-OP) [PDF]
, 2007 Optical LEO downlinks from the Japanese OICETS to the optical ground station built by the German Aerospace Center (DLR) near Munich have been performed. This was the first optical LEO downlink on European grounds.
Perlot, Nicolas +13 more
core +1 more source
Broadband single-mode microfiber coupler for OCT [PDF]
, 2009 We present a bi-conical microfiber coupler (MFC) with a specifically designed transition region as an efficient tool to filter higher-order modes in multimode waveguides.
Jung, Y. +2 more
core +2 more sources
Applied Sciences, 2021 Given that light is known to function as a zeitgeber, having the greatest influence on the human circadian rhythm, it is necessary to assess the effects of light on humans with the goal of maintaining the circadian rhythm.
Yun Jae Eo +6 more
doaj +1 more source
Stress and Refractive Index Control of SiO2 Thin Films for Suspended Waveguides
Nanomaterials, 2020 Film stress and refractive index play an important role in the fabrication of suspended waveguides. SiO2 waveguides were successfully fabricated on multiple substrates including Si, Ge, and Al2O3 wafers; the waveguides were deposited using inductively ...
Neal Wostbrock, Tito Busani
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Design and Simulation of Optical Filter for Dense Wavelength Division Multiplexing (DWDM) System [PDF]
Engineering and Technology Journal, 2013 In this paper, it is demonstrated, by means of simulations, the practical feasibility of an interference filter, implemented from a stack of high and low index birefringent thin films that can be used as transmission filter.
Aseel Abdulameer Shakaty
doaj +1 more source
IEEE Photonics Journal, 2019 We report continuously tunable and bandwidth variable optical notch and band-pass filters created by combining four left- and right-handed circular cholesteric liquid crystal cells without extra optical components. Filter performance was greatly improved
Mi-Yun Jeong, Keumcheol Kwak
doaj +1 more source