Results 71 to 80 of about 626 (184)
, 2004 We describe a numerical method to compute the reflectivity of a metallised integrated echelle grating. The modelling is based on a combination of a finite element method in the region inside the grating teeth and the Rayleigh field expansion outside ...
Dossou, K. +3 more
core +1 more source
, 2022 We experimentally demonstrate a photonic integrated 1×40 100GHz spaced Mux/Demux by cascading one 1×8 100GHz 3-μm silicon Planar Echelle Grating (PEG) and eight 1×5 800GHz PEGs. Experimental results show 2dB insertion loss, -35dB crosstalk and error-free
Bhat, Srivathsa +4 more
core +1 more source
We present the design, manufacturing and characterization results of a customized high-resolution echelle grating. The grating was manufactured at Fraunhofer IOF and delivered to the NIRPS (Near Infrared Planet Searcher Instrument) consortium.
Sadlowski, Susann +9 more
core +1 more source
, 2008 Silicon nanowire waveguides and related etched diffraction grating (EDG) demultiplexers are studied by α-Si-on-SiO2 technology. Compact EDG demultiplexers with 10 run spacing for both echelle and total-internal- reflection (TIR) facets have been ...
Ning Zhu +3 more
core +1 more source
Light scattering from a diffractive-refractive intraocular lens: a goniometer-based approach for individual zone assessment. [PDF]
Biomed Opt Express, 2022 Łabuz G +3 more
europepmc +1 more source
87th Annual Meeting of the Meteoritical Society 2025: Abstracts
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley +1 more source
Fast High Resolution Echelle Spectroscopy Of A Laboratory Plasma
, 2006 An echelle diffraction grating and a multianode photomultiplier tube are paired to construct a high resolution (R=lambda/delta lambda approximate to 2.5x10(4)) spectrograph with fast time response for use from the UV through the visible.
Fung, Jerome, , \u2706 +3 more
core +2 more sources
TARdYS: Design and prototype of an exoplanet hunter for TAO using a R6 Echelle grating
, 2019 One limitation in characterizing exoplanet candidates is the availability of infrared, high-resolution spectrographs. An important factor in the scarcity of high precision IR spectrographs is the high cost of these instruments.
Rukdee, Surangkhana +9 more
core +1 more source
SPINER: spectro-interferometry with echelle grating at high resolution
Optical and Infrared Interferometry and Imaging IXSpectro-interferometry is a powerful technique to study astrophysical objects. All modern interferometric instruments offer at least a limited spectral resolution allowing to probe geometry as the function of the wavelength. Some even offer high-enough resolutions to resolve narrow spectral features allowing to constrain physical, chemical and ...
Meilland, Anthony +3 more
openaire +2 more sources
, 2000 We describe and evaluate a new instrument design called a Tunable Echelle Imager (TEI). In this instrument, the output from an imaging Fabry-Perot interferometer is cross-dispersed by a grism in one direction and dispersed by an echelle grating in the ...
J. Bland-Hawthorn, I.K. Baldry, J. Bl
core