Design of Compact Mid-Infrared Cooled Echelle Spectrometer Based on Toroidal Uniform-Line-Spaced (TULS) Grating [PDF]
Sensors, 2022 A traditional flat-panel spectrometer does not allow high-resolution observation and miniaturization simultaneously. In this study, a compact, high-resolution cross-dispersion spectrometer was designed based on the theoretical basis of echelle grating ...
Qingyu Wang +4 more
doaj +2 more sources
Tunable Fiber Laser with High Tuning Resolution in C-band Based on Echelle Grating and DMD Chip [PDF]
Micromachines, 2019 The tunable fiber laser with high tuning resolution in the C-band is proposed and demonstrated based on a digital micromirror device (DMD) chip and an echelle grating.
Jinliang Li +5 more
doaj +2 more sources
Bidirectional Coupler Study for Chip-Based Spectral-Domain Optical Coherence Tomography [PDF]
Micromachines, 2022 A chip-based spectral-domain optical coherence tomography (SD-OCT) system consists of a broadband source, interferometer, and spectrometer. The optical power divider flatness in the interferometer’s wavelength is crucial to higher signal-to-noise ratios.
Hong-Yan Zheng +4 more
doaj +2 more sources
Compact, astigmatism corrected cross-grating spectrometer [PDF]
EPJ Web of Conferences, 2020 Compact cross-grating spectrometers are inspired by classical high-end Echelle spectrometers and allow to acquire a large spectrum with a high spectral resolution in a single shot.
Kraus Matthias +8 more
doaj +1 more source
Echelle Grating Spectroscopic Technology for High-Resolution and Broadband Spectral Measurement
Applied Sciences, 2022 Echelle grating provides high spectral resolving power and diffraction efficiency in a broadband wavelength range by the Littrow mode. The spectrometer with the cross-dispersed echelle scheme has seen remarkable growth in recent decades.
Yinxin Zhang +4 more
doaj +1 more source
A High-Resolution MIR Echelle Grating Spectrometer with a Three-Mirror Anastigmatic System
Applied Sciences, 2022 With the emergence of high-performance infrared detectors and the latest progress in grating manufacturing technology, high-resolution and high-sensitivity infrared spectrometers provide new methods for application to many fields, including astronomy and
Qingyu Wang +3 more
doaj +1 more source
Development of a Spatial Heterodyne Terahertz Raman Spectrometer with Echelle Gratings
Applied Sciences, 2023 This paper introduces an echelle grating spatial heterodyne terahertz Raman spectrometer (E-SHTRS) that combines echelle gratings with spatial heterodyne terahertz Raman spectroscopy technology by replacing the gratings on the interference arms with 36 ...
Yuqi Sun +8 more
doaj +1 more source
Optics Express, 2022 We present a comparative experimental study of three silicon photonic echelle grating demultiplexers that are integrated with a Mach-Zehnder interferometer (MZI) launch structure. By appropriate choice of the MZI configuration, the temperature induced shift of the demultiplexer channel wavelengths can be suppressed (athermal) or enhanced (super-thermal)
Melati, Daniele +7 more
openaire +3 more sources
Optical Design for Aberration Correction of Ultra-Wide Spectral Range Echelle Spectrometer
Photonics, 2022 The echelle grating spectrometer, with a wide spectral range and high-resolution spectral analysis, is one of the best tools for fine spectral measurement. Nevertheless, it suffers from excessive residual aberrations and a large overall size.
Yuming Wang +3 more
doaj +1 more source
High efficiency echelle gratings for the far ultraviolet
Applied Optics, 2022 Modern grating manufacturing techniques suffer from inherent issues that limit their peak efficiencies. The anisotropic etching of silicon facilitates the creation of custom gratings that have sharp and atomically smooth facets, directly addressing these issues.
Nicholas Kruczek +6 more
openaire +3 more sources