lineshape function
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The Einstein A and B coefficients

2021 ◽  
pp. 228-240
Author(s):  
Geoffrey Brooker
Keyword(s):  
Spontaneous Emission ◽  
Line Profile ◽  
Quantum Electrodynamics ◽  
Detailed Balance ◽  
Stimulated Emission ◽  
Spectral Lineshape ◽  
Single Field ◽  
Atomic States ◽  
B Coefficients ◽  
Lineshape Function

The Einstein A and B coefficients for atom–photon reactions are defined: they describe absorption, stimulated emission, and spontaneous emission. We calculate B and consequently find A by the Einstein trick. The procedure is validated by application of detailed balance. Separating out frequencies permits introduction of the spectral lineshape function (normalized line profile). A reformulation describes transitions involving single atomic states and single field modes. This points to a link with quantum electrodynamics.

scholarly journals Predicting fluorescence quantum yields for molecules in solution: A critical assessment of the harmonic approximation and the choice of the lineshape function

2020 ◽  
Vol 152 (5) ◽  
pp. 054107 ◽  
Author(s):  
Alexander Humeniuk ◽  
Margarita Bužančić ◽  
Joscha Hoche ◽  
Javier Cerezo ◽  
Roland Mitrić ◽  
...  
Keyword(s):  
Harmonic Approximation ◽  
Critical Assessment ◽  
Quantum Yields ◽  
Fluorescence Quantum Yields ◽  
Lineshape Function

scholarly journals Comments on the optical lineshape function: Application to transient hole-burned spectra of bacterial reaction centers

2015 ◽  
Vol 142 (9) ◽  
pp. 094111 ◽  
Author(s):  
Mike Reppert ◽  
Adam Kell ◽  
Thomas Pruitt ◽  
Ryszard Jankowiak
Keyword(s):  
Reaction Centers ◽  
Bacterial Reaction Centers ◽  
Lineshape Function

scholarly journals Analytical expression for the nth Fourier coefficient of a modulated Lorentzian dispersion lineshape function

2011 ◽  
Vol 112 (9) ◽  
pp. 1443-1449 ◽  
Author(s):  
Jonas Westberg ◽  
Pawel Kluczynski ◽  
Stefan Lundqvist ◽  
Ove Axner
Keyword(s):  
Fourier Coefficient ◽  
Analytical Expression ◽  
Lineshape Function

ESR Lineshape Function of Cr$^{3+}$ in Cr-doped Lithium Niobate (LiNbO$_3$)

2011 ◽  
Vol 61 (3) ◽  
pp. 289
Author(s):  
Hyeong Rag Lee ◽  
Jung Il Park ◽  
Kyu Chan Bae ◽  
Haeng Ki Lee
Keyword(s):  
Lithium Niobate ◽  
Lineshape Function

Quantitative description of Faraday modulation spectrometry in terms of the integrated linestrength and 1st Fourier coefficients of the modulated lineshape function

2010 ◽  
Vol 111 (16) ◽  
pp. 2415-2433 ◽  
Author(s):  
Jonas Westberg ◽  
Lemthong Lathdavong ◽  
Claude M. Dion ◽  
Jie Shao ◽  
Pawel Kluczynski ◽  
...  
Keyword(s):  
Fourier Coefficients ◽  
Quantitative Description ◽  
Lineshape Function
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