Dependence of the Spontaneous Emission of Singlet Oxygen on the Refractive Index and Molecular Polarizability of the Surrounding Dielectric Media

2014 ◽  
Vol 116 (6) ◽  
pp. 1003-1008
Author(s):  
B. M. Dzhagarov ◽  
E. S. Jarnikova ◽  
M. V. Parkhats ◽  
A. S. Stasheuski
Keyword(s):  
Refractive Index ◽  
Singlet Oxygen ◽  
Spontaneous Emission ◽  
Molecular Polarizability ◽  
Dielectric Media

Control of Förster energy transfer in the vicinity of metallic surfaces and hyperbolic metamaterials

2015 ◽  
Vol 178 ◽  
pp. 395-412 ◽  
Author(s):  
T. U. Tumkur ◽  
J. K. Kitur ◽  
C. E. Bonner ◽  
A. N. Poddubny ◽  
E. E. Narimanov ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Spontaneous Emission ◽  
Practical Importance ◽  
Index Of Refraction ◽  
Metallic Surfaces ◽  
Dielectric Media ◽  
Plasmonic Structures ◽  
Donor And Acceptor ◽  
Förster Energy Transfer ◽  
Photonic States

Optical cavities, plasmonic structures, photonic band crystals and interfaces, as well as, generally speaking, any photonic media with homogeneous or spatially inhomogeneous dielectric permittivity (including metamaterials) have local densities of photonic states, which are different from that in vacuum. These modified density of states environments are known to control both the rate and the angular distribution of spontaneous emission. In the present study, we question whether the proximity to metallic and metamaterial surfaces can affect other physical phenomena of fundamental and practical importance. We show that the same substrates and the same nonlocal dielectric environments that boost spontaneous emission, also inhibit Förster energy transfer between donor and acceptor molecules doped into a thin polymeric film. This finding correlates with the fact that in dielectric media, the rate of spontaneous emission is proportional to the index of refractionn, while the rate of the donor–acceptor energy transfer (in solid solutions with a random distribution of acceptors) is proportional ton−1.5. This heuristic correspondence suggests that other classical and quantum phenomena, which in regular dielectric media depend onn, can also be controlled with custom-tailored metamaterials, plasmonic structures, and cavities.

Spontaneous Emission of Singlet Oxygen Near Dielectric Nano-objects and Radiative Diagnostics of Bio-Objects

2012 ◽  
Vol 22 (6) ◽  
pp. 1415-1419 ◽  
Author(s):  
D. Mogilevtsev ◽  
A. Maloshtan ◽  
S. V. Lepeshkevich ◽  
B. M. Dzhagarov
Keyword(s):  
Singlet Oxygen ◽  
Spontaneous Emission

scholarly journals Integrated Continuum Dielectric Approaches To Treat Molecular Polarizability and the Condensed Phase: Refractive Index and Implicit Solvation

2009 ◽  
Vol 5 (7) ◽  
pp. 1785-1802 ◽  
Author(s):  
Jean-François Truchon ◽  
Anthony Nicholls ◽  
Benoît Roux ◽  
Radu I. Iftimie ◽  
Christopher I. Bayly
Keyword(s):  
Refractive Index ◽  
Condensed Phase ◽  
Molecular Polarizability ◽  
Implicit Solvation

Long-range surface plasmon resonance and surface-enhanced Raman scattering on X-shaped gold plasmonic nanohole arrays

2017 ◽  
Vol 19 (35) ◽  
pp. 24126-24134 ◽  
Author(s):  
Chao Hou ◽  
Daniel David Galvan ◽  
Guowen Meng ◽  
Qiuming Yu
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Long Range ◽  
Surface Plasmon ◽  
Sers Substrate ◽  
Dielectric Media ◽  
Surface Enhanced ◽  
Nanohole Arrays ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

X-shaped gold plasmonic nanohole arrays embedded in refractive index-matched dielectric media are designed and optimized as a long-range SERS substrate.

Spontaneous emission in absorbing dielectric media

1992 ◽  
Vol 68 (25) ◽  
pp. 3698-3701 ◽  
Author(s):  
Stephen M. Barnett ◽  
Bruno Huttner ◽  
Rodney Loudon
Keyword(s):  
Spontaneous Emission ◽  
Dielectric Media
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