Results 51 to 60 of about 5,643,837 (365)

Displacement of Spectral Lines [PDF]

Nature, 1920
IN view of the discussion in NATURE and elsewhere on this subject, the following extract from a recent letter of Prof. Einstein may be of interest:
openaire   +3 more sources

THE SDSS-III APOGEE SPECTRAL LINE LIST FOR H-BAND SPECTROSCOPY [PDF]

, 2015
We present the H-band spectral line lists adopted by the Apache Point Observatory Galactic Evolution Experiment (APOGEE). The APOGEE line lists comprise astrophysical, theoretical, and laboratory sources from the literature, as well as newly evaluated ...
M. Shetrone, D. Bizyaev, J. Lawler, C. Prieto, Jennifer A. Johnson, V. Smith, K. Cunha, J. Holtzman, A. G. Pérez, Szabolcs Mészáros, J. Sobeck, O. Zamora, A. Garcia-Hernandez, D. Souto, D. Chojnowski, L. Koesterke, S. Majewski, G. Zasowski   +17 more
semanticscholar   +1 more source

A method to achieve spectral beam combining based on a novel symmetric grating

Frontiers in Physics, 2022
A symmetric grating is proposed to obtain higher output power in spectral beam combination by increasing the number of lasers and spectral utilization. The grating allows laser beams to be incident from both sides of the grating normal to achieve coaxial
Xinmin Fan, Xinmin Fan, Jianxin Zhang, Jianxin Zhang, Jianxin Zhang, Sensen Li, Shun Li, Shun Li, Yan Wang, Yan Wang, Fei Du, Fei Du, Xiaodong Huang, Xiaodong Huang, Yingde Li, Lujun Zhang, Lujun Zhang, Chunyan Wang, Chunyan Wang   +18 more
doaj   +1 more source

The Spectral Correlation Function -- A New Tool for Analyzing Spectral-Line Maps [PDF]

, 1999
The "spectral correlation function" analysis we introduce in this paper is a new tool for analyzing spectral-line data cubes. Our initial tests, carried out on a suite of observed and simulated data cubes, indicate that the spectral correlation function [
Goodman, Alyssa A., Rosolowsky, Erik W., Williams, Jonathan P., Wilner, David J.   +3 more
core   +4 more sources

Three-Dimensional Reconstruction with a Laser Line Based on Image In-Painting and Multi-Spectral Photometric Stereo

Sensors, 2021
This paper presents a multi-spectral photometric stereo (MPS) method based on image in-painting, which can reconstruct the shape using a multi-spectral image with a laser line.
Liang Lu, Hongbao Zhu, Junyu Dong, Yakun Ju, Huiyu Zhou   +4 more
doaj   +1 more source

Spectral Power Enhancement in a 100 GHz Photonic Millimeter-Wave Generator Enabled by Spectral Line-by-Line Pulse Shaping

IEEE Photonics Journal, 2010
We report generation of high-modulation-depth photonic millimeter-wave (MMW) waveforms by applying line-by-line pulse shaping on a phase-modulated continuous-wave frequency comb.
F.-M. Kuo, J.-W. Shi, H.-C. Chiang, H.-P. Chuang, H.-K. Chiou, C.-L. Pan, N.-W. Chen, H.-J. Tsai, C.-B. Huang   +8 more
doaj   +1 more source

Evidence of the Amino Acids Tyrosine and Phenylalanine in the Interstellar Material of IC348 in Perseus

Life
We employed data from the Spitzer Space Telescope to investigate the presence of the aromatic amino acids tyrosine and phenylalanine in the interstellar gas of the young star cluster IC 348.
Susana Iglesias-Groth, Martina Marín Dobrincic, Antonio Pérez Garrido, Carlos Gutierrez   +3 more
doaj   +1 more source

Diagnostic features of rutile and cassiterite from heavy mineral concentrate samples, according to the IR microscopy data

Руды и металлы
Based on the study of rutile and cassiterite grains, using Fourier transform infrared microscopy, a new method for their determination in heavy mineral concentrate samples has been developed.
Khachatryan G. K., Anashkina N. E.
doaj   +1 more source

The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Optimization of the Spectral Line Inversion Code [PDF]

, 2014
The Very Fast Inversion of the Stokes Vector (VFISV) is a Milne–Eddington spectral line inversion code used to determine the magnetic and thermodynamic parameters of the solar photosphere from observations of the Stokes vector in the 6173 Å Fe i line by ...
R. Centeno, J. Schou, K. Hayashi, A. Norton, J. Hoeksema, Y. Liu, K. Leka, G. Barnes   +7 more
semanticscholar   +1 more source

Lorentz Meets Fano in Spectral Line Shapes: A Universal Phase and Its Laser Control [PDF]

Science, 2013
A Phase for Fano In spectroscopy, samples placed between a steady light source and a detector are characterized based on the relative intensities of light absorbed at different frequencies.
C. Ott, A. Kaldun, P. Raith, K. Meyer, M. Laux, J. Evers, C. Keitel, C. Greene, T. Pfeifer   +8 more
semanticscholar   +1 more source