Comments on Light Scattering from Optically Active Molecules

1971 ◽  
Vol 55 (4) ◽  
pp. 2001-2001 ◽  
Author(s):  
L. D. Barron
Keyword(s):  
Light Scattering ◽  
Optically Active

Light Scattering from Optically Active Fluids

1970 ◽  
Vol 52 (9) ◽  
pp. 4379-4384 ◽  
Author(s):  
L. Blum ◽  
H. L. Frisch
Keyword(s):  
Light Scattering ◽  
Optically Active

Erratum: Light Scattering from Optically Active Fluids

1971 ◽  
Vol 54 (9) ◽  
pp. 4140-4140 ◽  
Author(s):  
L. Blum ◽  
H. L. Frisch
Keyword(s):  
Light Scattering ◽  
Optically Active

Light Scattering from an Optically Active Sphere into a Circular Sensor Aperture

1997 ◽  
Author(s):  
J. D. Pendleton ◽  
David L. Rosen ◽  
James B. Gillespie
Keyword(s):  
Light Scattering ◽  
Optically Active

Light Scattering from Fluctuations in an Optically Active Fluid

1973 ◽  
Vol 28 (6) ◽  
pp. 805-814
Author(s):  
Kin-Wah Li ◽  
John S. Dahler
Keyword(s):  
Light Scattering ◽  
Angular Dependence ◽  
Optical Activity ◽  
Scattered Light ◽  
Monochromatic Light ◽  
Optically Active ◽  
Scattering Medium ◽  
Irreducible Components ◽  
New Feature ◽  
Scattered Fields

The theory of light scattering by fluctuations has been extended to optically active fluids. The new feature is the "gyration parameter", a second rank asymmetric tensor, the fluctuations of which must be counted along with the familiar isotropic (scalar) and anisotropic (traceless and symmetric) fluctuations of the electric permeability tensor. Scattering equations are derived and solved in order to obtain the spectrum of scattered light. It is found that the angular dependence of scattering caused by fluctuations of permeability alone does not involve the propagation vectors of the incident or scattered fields whereas that which involves fluctuations of the gyration parameter depends explicitly upon these two vectors. This gyration tensor also has distinguishable effects upon the depolarization, ellipticity, and rotation or tilt of the scattered quasi-monochromatic light. The total intensity is resolved into a sum of five distinct contributions, each associated with different irreducible components of the gyration and permeability tensors and each with a different dependence upon the scattering angle and polarizations of the incident and scattered light. Experiments are suggested which emphasize effects originating from the optical activity of the scattering medium.

Enhanced Luminescence of Europium in Porous Anodic Alumina Films

2004 ◽  
Vol 97-98 ◽  
pp. 251-258 ◽  
Author(s):  
N.V. Gaponenko ◽  
I.S. Molchan ◽  
A.A. Lutich ◽  
S.V. Gaponenko
Keyword(s):  
Light Scattering ◽  
Anodic Alumina ◽  
Optically Active ◽  
Porous Anodic Alumina ◽  
Strong Anisotropy ◽  
Anisotropic Properties ◽  
Single Spin ◽  
Alumina Films ◽  
Enhanced Luminescence ◽  
Doped Titania

Xerogels doped with lanthanides embedded in mesoporous matrices are known to exhibit intensive lanthanides-related photoluminescence (PL). In this paper we report on novel features peculiar to porous anodic alumina and Eu-doped xerogels embedded therein. For Eu-doped titania xerogel fabricated in a single spin-on step Eu PL increases with the thickness of porous anodic alumina ranging from 0.5 to 5 μm. The structure Eu-doped titania xerogel/porous anodic alumina reveal anisotropy of luminescence at 617 nm (5D0 → 7F2 transitions of Eu3+) with a pronounced maximum towards the channels of the anodic alumina pores. Furthermore, a membrane of porous anodic alumina reveals strong anisotropy of light scattering. Development of these anisotropic properties for the purpose of further PL enhancement of optically active inclusions incorporated in mesoscopic channels of anodic alumina is discussed.

A Classroom Demonstration of Rayleigh Light Scattering in Optically Active and Inactive Systems

1999 ◽  
Vol 76 (9) ◽  
pp. 1230 ◽  
Author(s):  
Monica Avalos Pecina ◽  
Charles A. Smith ◽  
Kristin Johnson ◽  
Penny Snetsinger
Keyword(s):  
Light Scattering ◽  
Optically Active ◽  
Rayleigh Light Scattering ◽  
Rayleigh Light

scholarly journals Predominantly left-handed circular polarization in comets: Does it indicate L-enantiomeric excess in cometary organics?

2008 ◽  
Vol 4 (S251) ◽  
pp. 311-312 ◽  
Author(s):  
V. Rosenbush ◽  
N. Kiselev ◽  
L. Kolokolova
Keyword(s):  
Light Scattering ◽  
Circular Polarization ◽  
Enantiomeric Excess ◽  
Polarized Light ◽  
Optically Active ◽  
Active Materials ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Cometary Dust ◽  
Left Handed

AbstractPolarimetric observations demonstrated that all comets with significant values of circular polarization show predominantly left–handed circularly polarized light. We discuss the presence of homochiral organics in cometary materials as a source of the observed circular polarization. We have studied the effect of chirality on light–scattering properties of cometary dust considering particles that possess optical activity. Our investigations show that the cometary dust may include optically active materials which can be prebiological homochiral organics.

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