Results 311 to 320 of about 1,455,401 (342)

Spectral line-by-line pulse shaping [PDF]

open access: possibleOptics Letters, 2005
We experimentally demonstrate pulse-shaping experiments in which the individual spectral lines that are present in the output of a mode-locked laser (8.5 GHz mode spacing, centered at 1542 nm) are resolved. The shaped pulses overlap in time, and this leads to a new way to observe fluctuations of the comb-offset frequency in the time domain.
Andrew M. Weiner   +4 more
openaire   +5 more sources

Spectral Lines for Refractometry

Journal of the Optical Society of America, 1963
This note contains proposals made at the 6th meeting of the International Commission for Optics in Munich, 1962, for a series of wavelengths for refractometry extending from 2139 + to 23254 +, together with a statement of the procedure then agreed.
A. Jackson, K. J. Habell
openaire   +3 more sources

Spectral line shapes. II

Molecular Physics, 1985
A spectral line shape function theory is extended for gaseous systems where reactive collisions can occur. The theory of subdynamics and the Fock-Tani representation are used in order to attempt this goal. The dependence of the spectral shape on the pressure and the reactive transition probability is clarified. Finally^a discussion concerning the above
M.A. Díaz, J. Veguillas
openaire   +3 more sources

The Spectral Line

Bulletin (Society for Applied Spectroscopy), 1951
Harold Hughes took a bit of his time during his vacation hideway at Lake Memphramagog, Vt., to report that among the members and friends of SAS who attended the summer meetings of ASTM at Atlantic City were the following: Charles Guettel and his family, E. J. Dunn, Jr., paul Lighty, B. F. Scribner, H. K. Hughes, E. K. Jaycox, C. Jedlicka, R.
openaire   +2 more sources

Spectral Line Fundamentals

2008
In local thermodynamic equilibrium (LTE) the intensities of emitted and absorbed radiation are not independent but are related by Kirchhoff’s law (1.14). This applies to both continuous radiation and line radiation. The Einstein coefficients give a convenient means to describe the interaction of radiation with matter by the emission and absorption of ...
Thomas L. Wilson   +2 more
openaire   +2 more sources

Spectral Line-by-Line Shaping

2010
Optical pulse shaping is a widely adopted technique in which intensity and phase manipulation of optical spectral components allow synthesis of user-specified ultrashort pulse fields according to a Fourier transform relationship. Furthermore, mode-locked lasers producing combs of frequency-stabilized spectral lines have resulted in revolutionary ...
José Caraquitena   +4 more
openaire   +2 more sources

The Formation of Spectral Lines

Annual Review of Astronomy and Astrophysics, 1971
This review is addressed to the nonspecialist reader and is intended to provide an intro duction to the physi cs a nd ph enomenology of the radiation field in spectral lines. Results that give the maxi mum insight are stressed and selected , while technical details are suppr essed. Because of restrictions on space and because of the appearance or pr om
G. B. Rybicki, D. G. Hummer
openaire   +2 more sources

Spectral lines: In the line of duty

IEEE Spectrum, 1986
Many of us did not know Judith Resnik or Gregory Jarvis personally. Yet there is pride for us in hearing the words ?Judith Resnik, electrical engineer?? and ?Gregory Jarvis, electrical engineer?.?
openaire   +2 more sources

Spectral Line Formation [PDF]

open access: possible, 2012
This chapter gives a review of spectral line formation processes, starting with the main equations valid in thermodynamic equilibrium. The Einstein coefficients and the main spectral line profile functions are discussed.
openaire   +1 more source

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