Results 11 to 20 of about 5,753 (177)
Fast High Resolution Echelle Spectroscopy Of A Laboratory Plasma [PDF]
, 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.
Brown, Michael R. +3 more
core +3 more sources
Concept and optical design of the cross-disperser module for CRIRES [PDF]
, 2014 This is the peer reviewed version of the following article: Oliva, Ernesto, A. Tozzi, D. Ferruzzi, L. Origlia, A. Hatzes, R. Follert, T. Loewinger et al.
Anglada-Escude, G +33 more
core +2 more sources
Perfect Chirped Echelle Grating Wavelength Multiplexor: Design and Optimization
IEEE Photonics Journal, 2013 A new method for designing an echelle-type diffraction grating for wavelength division multiplexing (WDM), which is tuned to a single stigmatic point, is introduced.
Richard J. Lycett +2 more
doaj +1 more source
Precise Blaze Angle Adjustment of Echelle Grating by Self-Shadowing Rotating Mask
IEEE Photonics Journal, 2018 Angular precision of 0.1° for the blaze angle of echelle gratings is an important technical requirement for spectral instruments with echelle gratings.
Bin Sheng +6 more
doaj +1 more source
NEWS: the near-infrared Echelle for wideband spectroscopy [PDF]
, 2016 We present an updated optical and mechanical design of NEWS: the Near-infrared Echelle for Wide-band Spectroscopy (formerly called HiJaK: the High-resolution J, H and K spectrometer), a compact, high-resolution, near-infrared spectrometer for 5-meter ...
Hall, Zachary +4 more
core +2 more sources
Reflectively Coupled Waveguide Photodetector for High Speed Optical Interconnection
Sensors, 2010 To fully utilize GaAs high drift mobility, techniques to monolithically integrate In0.53Ga0.47As p-i-n photodetectors with GaAs based optical waveguides using total internal reflection coupling are reviewed. Metal coplanar waveguides, deposited on top of
Shih-Hsiang Hsu
doaj +1 more source
The Planetary Science Journal, 2023 We measured the chemical composition of comet C/2021 A1 (Leonard) using the long-slit echelle grating spectrograph iSHELL/IRTF on 2021 December 20 and on 2022 January 8 and 9.
Sara Faggi +3 more
doaj +1 more source
Silicon Nitride/Silicon Dioxide Echelle Grating Spectrometer for Operation Near 1.55 μm
IEEE Photonics Journal, 2018 Here we use an electron beam lithography system to pattern an ${\rm{S}}{{\rm{i}}_{3}}{{\rm{N}}_{4}}{\rm{/Si}}{{\rm{O}}_{2}}$ echelle grating using silver as a reflector on the grating grooves.
Shengjie Xie +4 more
doaj +1 more source
Echelle crossed grating millimeter wave beam scanner
Optics Express, 2014 We present a two-dimensional, active, millimeter-wave, electronic beam scanner, with Doppler capabilities for stand-off imaging. The two-dimensional scan is achieved by mapping the millimeter wave spectrum to space using a pair of crossed gratings. The active transceiver and heterodyne quadrature detection allow the measurement of the relative phase ...
Orges, Furxhi +2 more
openaire +2 more sources
IEEE Photonics Journal, 2012 We design a spot-size converter (SSC) on silicon-on-insulator (SOI) platform to interface an integrated optical receiver (IOR) with a single-mode fiber (SMF).
Neil Na, Tao Yin
doaj +1 more source