Results 41 to 50 of about 1,455,401 (342)
Analysis of Infrared Spectral Radiance of O2 1.27 μm Band Based on Space-Based Limb Detection
Remote Sensing, 2023 The infrared spectral radiance of O2 is of great significance for space-based infrared detection. In this work, based on the demand for near-infrared spectral radiance of O2 limb detection, a method of spectral radiance calculation coupled with an ...
Jingyu Bai +4 more
doaj +1 more source
Effects of nonlocality in time of interactions of an atom with its surroundings on the broadening of spectral lines of atoms [PDF]
, 2002 We investigate effects of nonlocality in time of the interaction of an atom with its surroundings on the spectral line broadening. We show that these effects can be very significant: In some cases nonlocality in time of this interaction can give rise to ...
Adamian +27 more
core +2 more sources
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 +18 more
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The Spectral Line Shape of Exotic Nuclei [PDF]
, 1996 The quadrupole strength function of $^{28}O$ is calculated making use of the SIII interaction, within the framework of continuum-RPA and taking into account collisions among the nucleons (doorway coupling).
E. Vigezzi +12 more
core +2 more sources
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
Spectral line width decrease in the solar corona: resonant energy conversion from Alfv{é}n to acoustic waves [PDF]
Astron.Astrophys.456:L13,2006, 2007 Observations reveal an increase with height of the line width of several coronal spectral lines probably caused by outwardly propagating Alfv{\'e}n waves. However, the spectral line width sometimes shows a sudden decrease at a height 0.1-0.2 R, where the ratio of sound to Alfven speeds may approach unity.
arxiv +1 more source
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 +8 more
doaj +1 more source
Uniqueness theorems in inverse spectral theory for one-dimensional Schrödinger operators [PDF]
, 1996 New unique characterization results for the potential V(x) in connection with Schrödinger operators on R and on the half-line [0,∞)are proven in terms of appropriate Krein spectral shift functions.
Gesztesy, F., Simon, B.
core +2 more sources
LifeWe 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 +3 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. +3 more
core +4 more sources