Spontaneous emission in lipid-water system

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A theoretical description of the quantum electromagnetic field in the lipid-water system is presented, and the spontaneous emission rate of an excited molecule bound in the lipid layer is calculated. By using the reflectivity data of liquid water, the emission rates as a function of the wavelength and the index of refraction of hydrocarbon are calculated. Depending on the alignment of the transition dipole, the spontaneous emission rate is found to be modified significantly. When the alignment of the transition dipole is perpendicular to the lipid-water interfaces, the emission rate is more strongly suppressed by the presence of the boundaries, in comparison to the parallel case. It is suggested that one could experimentally measure this alignment dependence of the spontaneous emission process in the lipid-water system, and some possible implications to the antenna system in the photosynthesis are briefly discussed.

Original languageEnglish
Pages (from-to)4499-4506
Number of pages8
JournalJournal of Chemical Physics
Volume107
Issue number12
Publication statusPublished - 1997 Sep 22

Fingerprint

Spontaneous emission
spontaneous emission
lipids
Lipids
Water
alignment
water
dipoles
photosynthesis
Photosynthesis
Electron transitions
Hydrocarbons
Refraction
Electromagnetic fields
refraction
electromagnetic fields
antennas
hydrocarbons
Antennas
reflectance

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Spontaneous emission in lipid-water system. / Cho, Minhaeng.

In: Journal of Chemical Physics, Vol. 107, No. 12, 22.09.1997, p. 4499-4506.

Research output: Contribution to journalArticle

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