Scanning tunnelling miscroscopy/spectroscopy and X-ray absorption spectroscopy studies of Co adatoms and anoislands on highly oriented pyrolytic graphite [PDF]
, 2010 In this paper, the scanning tunneling microscopy, scanning tunneling spectroscopy and X-ray absorption spectroscopy of cobalt adatoms and nanoislands were studied on a highly oriented pyrolytic graphite.
de Jong, M.P. +6 more
core +3 more sources
Magnetoexcitons and optical absorption of bilayer-structured topological insulators [PDF]
Appl. Phys. Lett. 100, 161602 (2012), 2012 Optical absorption properties of magnetoexcitons in topological insulator bilayers under a strong magnetic field are theoretically studied. A general analytical formula of optical absorption selection rule is obtained in the noninteracting as well as Coulomb intra-Landau-level interacting cases, which remarkably helps to interpret the resonant peaks in
arxiv +1 more source
Diagnostic Potential of Cosmic-Neutrino Absorption Spectroscopy [PDF]
, 2004 Annihilation of extremely energetic cosmic neutrinos on the relic-neutrino background can give rise to absorption lines at energies corresponding to formation of the electroweak gauge boson $Z^{0}$.
A. Liddle +17 more
core +3 more sources
Bulk sensitive x-ray absorption spectroscopy free of self-absorption effects [PDF]
Phys. Rev. B 83, 081106(R) (2011), 2010 We demonstrate a new method of x-ray absorption spectroscopy (XAS) that is bulk sensitive, like traditional fluorescence yield measurements, but is not affected by self-absorption or saturation effects. This measure of XAS is achieved by scanning the incident photon energy through an absorption edge and using an energy sensitive photon detector to ...
arxiv +1 more source
Application of Excimer Lamp in Quantitative Detection of SF6 Decomposition Component SO2
Sensors, 2021 Accurate quantitative detection for trace gas has long been the center of failure diagnosis for gas-insulated equipment. An absorption spectroscopy-based detection system was developed for trace SF6 decomposition SO2 detection in this paper.
Tunan Chen +6 more
doaj +1 more source
Baseline-free Quantitative Absorption Spectroscopy Based on Cepstral Analysis [PDF]
Optics Express 27(26), 37920-37939 (2019), 2019 The accuracy of quantitative absorption spectroscopy depends on correctly distinguishing molecular absorption signatures in a measured transmission spectrum from the varying intensity or "baseline" of the light source. Baseline correction becomes particularly difficult when the measurement involves complex, broadly absorbing molecules or non-ideal ...
arxiv +1 more source
Dual-frequency Doppler-free spectroscopy for simultaneous laser stabilisation in compact atomic physics experiments [PDF]
, 2021 Vapour cell spectroscopy is an essential technique in many fields; in particular, nearly all atom and ion trapping experiments rely on simultaneous spectroscopy of two atomic transitions, traditionally employing separate apparatus for each transition.
arxiv +1 more source
Long-Term Stable Online Acetylene Detection by a CEAS System with Suppression of Cavity Length Drift
Sensors, 2019 A trace acetylene (C2H2) detection system was demonstrated using the cavity-enhanced absorption spectroscopy (CEAS) technique and a near-infrared distributed feedback (NIR-DFB) laser.
Qixin He, Qibo Feng, Jiakun Li
doaj +1 more source
Photothermal Absorption Spectroscopy of Individual Semiconductor Nanocrystals [PDF]
, 2005 Photothermal heterodyne detection is used to record the first room-temperature absorption spectra of single CdSe/ZnS semiconductor nanocrystals.
Achermann M. +23 more
core +2 more sources
Inverse modelling on the basis of remote sensing to determine emission rates
Meteorologische Zeitschrift, 1998 Inverse modelling with a Gaussian dispersion model is used to determine emission rates of diffuse sourees. The path-integrated gaseous concentrations of an exhaust are measured downwind of the source by FTIR absorption spectroscopy.
Klaus Schäfer +12 more
doaj +1 more source