M-lines characterization of selenide and telluride waveguides for mid-infrared interferometry [PDF]
, 2006 Nulling interferometry is an astronomical technique that combines equal wavefronts to achieve a deep rejection ratio of an on-axis star, and that could permit to detect Earth-like planets in the mid-infrared band 5 -- 20 microns.
Arezki, Brahim +5 more
core +4 more sources
Efficient Study Of Substrate Integrated Waveguide Devices
, 2015 This paper presents a study of SIW circuits (Substrate Integrated Waveguide) with a rigorous and fast original approach based on Iterative process (WCIP). The theoretical suggested study is validated by the simulation of two different examples of SIW circuits. The obtained results are in good agreement with those of measurement and with software HFSS.
Hajri, J. +3 more
openaire +3 more sources
Empty Substrate Integrated Waveguide Coupler and Transition Structure to WR-3 Waveguide
IEEE AccessThis paper proposes a sub-THz Riblet coupler based on the empty substrate integrated waveguide (ESIW) and a transition structure between ESIW and a WR-3 rectangular waveguide.
Ching Li, Yu-Hsiang Cheng
doaj +1 more source
Wideband Transition for Increased-Height Empty Substrate Integrated Waveguide
IEEE Access, 2019 Recently, Empty Substrate Integrated Waveguide (ESIW) technology was proposed for embedding empty waveguides into planar substrates in order to improve their performance.
Juan A. Martinez +4 more
doaj +1 more source
Substrate Integrated Waveguide Filtenna With Two Controllable Radiation Nulls
IEEE Access, 2020 In this paper, a novel substrate integrated waveguide (SIW) filtenna with two controllable radiation nulls is proposed, which has the advantage of good radiation characteristics.
Chuanyun Wang +4 more
doaj +1 more source
Technology challenges for space interferometry: the option of mid-infrared integrated optics
, 2007 Nulling interferometry is a technique providing high angular resolution which is the core of the space missions Darwin and the Terrestrail Planet Finder. The first objective is to reach a deep degree of starlight cancelation in the range 6 -- 20 microns,
A. Pradel +30 more
core +4 more sources
Characterization of femtosecond laser written waveguides for integrated biochemical sensing [PDF]
, 2007 Fluorescence detection is known to be one of the most sensitive among the different optical sensing techniques. This work focuses on excitation and detection of fluorescence emitted by DNA strands labeled with fluorescent dye molecules that can be ...
Cerullo, G. +8 more
core +1 more source
Electronically Tunable Half-Mode Substrate-Integrated Waveguide Coupler
IEEE AccessThis paper presents the design and implementation of a compact and highly efficient –10 dB directional coupler based on a half-mode substrate integrated waveguide cavity resonator configuration.
Laeeq Riaz +6 more
doaj +1 more source
Design of an 845-nm GaAs vertical-cavity silicon-integrated laser with an intracavity grating for coupling to a SiN waveguide circuit [PDF]
, 2017 A short-wavelength hybrid GaAs vertical-cavity silicon-integrated laser (VCSIL) with in-plane waveguide coupling has been designed and optimized using numerical simulations.
Baets, Roel +6 more
core +1 more source
Electronically Controlled 35-bit Substrate Integrated Waveguide Phase Shifter
IEEE AccessA 35-bit electronically-controlled digital substrate integrated waveguide (SIW) phase shifter with high phase resolution and large phase shift range is proposed in this paper. The main part of phase shifter contains two rows of metallic vias in each side
Xingyu Pang +5 more
doaj +1 more source