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A new high field spectrometer has been built to extend the capabilities of the $\beta$-detected nuclear magnetic resonance ($\beta$-NMR) facility at TRIUMF. This new beamline extension allows $\beta$-NMR spectroscopy to be performed with…

The Far Ultraviolet Spectroscopic Explorer (FUSE) has surveyed a large sample (> 100) of active galactic nuclei in the low redshift universe (z < 1). Its response at short wavelengths makes it possible to measure directly the EUV spectral…

This paper discusses a simple, low-cost, highly efficient two-mirror projector with a simplified illumination system. The EUV source power can be reduced by 1/10 compared to the current six-mirror EUV projector system. The required EUV…

Optics · Physics 2024-05-21 Tsumoru Shintake

We investigate the ultraviolet (UV) spectral properties of faint Lyman-$\alpha$ emitters (LAEs) in the redshift range 2.9<z<4.6 and provide material to prepare future observations of the faint Universe. We use data from the MUSE Hubble…

Homemade spectrometers are commonly used tools to analyze light sources and determine its physical characteristics. We perform an assessment of homemade spectrometers in terms of spectral resolution and accuracy in the determination of…

Physics Education · Physics 2022-01-19 Ana R. Romero Castellannos , H. E. Castellanos , C. E. Alvarez-Salazar

Future prospects for solar spectroscopy missions operating in the extreme ultraviolet (EUV) and soft X-ray (SXR) wavelength ranges, 1.2-1600 Angstroms, are discussed. NASA is the major funder of Solar Physics missions, and brief summaries…

Solar and Stellar Astrophysics · Physics 2021-03-19 Peter R. Young

We present a method to measure the relative spectral response of the Pierre Auger Observatory Fluorescence Detector. The calibration was done at wavelengths of 320, 337, 355, 380 and 405 nm using an end-to-end technique in which the…

Astrophysics · Physics 2019-08-13 A. C. Rovero , P. Bauleo , J. T. Brack , J. L. Harton , R. Knapik

The photon spectrum from free-electron laser (FEL) light sources offers valuable information in time-resolved experiments and machine optimization in the spectral and temporal domains. We have developed a compact single-shot photon…

Thorium hollow cathode lamps (HCLs) are used as frequency calibrators for many high resolution astronomical spectrographs, some of which aim for Doppler precision at the 1 m/s level. We aim to determine the most suitable combination of…

Instrumentation and Methods for Astrophysics · Physics 2018-06-25 L. F. Sarmiento , A. Reiners , P. Huke , F. F. Bauer , E. W. Guenter , U. Seemann , U. Wolter

A large number of current and future experiments in neutrino and dark matter detection use the scintillation light from noble elements as a mechanism for measuring energy deposition. The scintillation light from these elements is produced…

Instrumentation and Methods for Astrophysics · Physics 2015-03-19 V. M. Gehman , S. R. Seibert , K. Rielage , A. Hime , Y. Sun , D. -M. Mei , J. Maassen , D. Moore

Spectral shaping is critical to many fields of science. In astronomy for example, the detection of exoplanets via the Doppler effect hinges on the ability to calibrate a high resolution spectrograph. Laser frequency combs can be used for…

A critical technology for high-volume manufacturing of nanoscale integrated circuits is a high-power extreme ultraviolet (EUV) light source. Over the past decades, laser-produced plasma (LPP) sources have been actively utilized in this…

Accelerator Physics · Physics 2025-01-27 Changchao He , Hanxiang Yang , Nanshun Huang , Bo Liu , Haixiao Deng

Here we present a high repetition rate, narrow band-width, extreme ultraviolet (XUV) photon source for time- and angle-resolved photoemission spectroscopy (tr-ARPES). The narrow band width pulses $\Delta E=9, 14, 18$ meV for photon energies…

The quality of astronomical spectra is now so high that the accuracy of the laboratory data is getting more and more important for the analysis and interpretation. Both in astrophysics and cosmology the needs for accurate laboratory…

Astrophysics · Physics 2009-11-13 M. Aldenius , S. Johansson

AstroSat/UVIT carries two gratings in the FUV channel and a single grating in the NUV channel. These gratings are useful for low resolution, slitless spectroscopy in the far and near UV bands of a variety of cosmic sources such as hot…

Instrumentation and Methods for Astrophysics · Physics 2021-06-23 G. C. Dewangan

Experimental spectroscopic studies are presented, in a 5.5--25.5nm extreme-ultraviolet (EUV) wavelength range, of the light emitted from plasma produced by the irradiation of tin microdroplets by 5-ns-pulsed, 2-$\mu$m-wavelength laser…

Plasma Physics · Physics 2021-04-07 R. Schupp , L. Behnke , J. Sheil , Z. Bouza , M. Bayraktar , W. Ubachs , R. Hoekstra , O. O. Versolato

We present an ultra-compact single-shot spectrometer on silicon platform with broad operation bandwidth and high resolution. It consists of 32 stratified waveguide filters (SWFs) with diverse transmission spectra for sampling the unknown…

Optics · Physics 2020-12-01 Ang Li , Yeshaiahu Fainman

Controlled and precise fabrication of structures with heights in the range of single digit nanometres is one of the challenges for diffraction gratings operating near-normal incidence in the extreme ultraviolet (EUV) and soft X-ray range.…

Applied Physics · Physics 2026-01-09 Johannes Kaufmann , Thomas Siefke , Uwe Zeitner

We report on an air-spaced virtually imaged phased array (VIPA) spectrometer that resolves the modes of a mid-infrared frequency comb with a repetition rate of 250 MHz, without an optical filter cavity. With a record spectral resolution of…

Optics · Physics 2026-04-02 Ibrahim Sadiek , Norbert Lang , Jean-Pierre H. van Helden
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