Chirality in nonlinear optics

LM Haupert, GJ Simpson - Annual review of physical chemistry, 2009 - annualreviews.org
The past decade has witnessed the emergence of new measurement approaches and
applications for chiral thin films and materials enabled by the observations of the high …

Molecular dynamics study of the nature and origin of retinal's twisted structure in bacteriorhodopsin

E Tajkhorshid, J Baudry, K Schulten, S Suhai - Biophysical Journal, 2000 - cell.com
The planarity of the polyene chain of the retinal chromophore in bacteriorhodopsin is studied
using molecular dynamics simulation techniques and applying different force-field …

Influence of the methyl groups on the structure, charge distribution, and proton affinity of the retinal Schiff base

E Tajkhorshid, S Suhai - The Journal of Physical Chemistry B, 1999 - ACS Publications
The effect of the methyl substitutions at different carbon atoms of the polyene chain of the
retinal Schiff base has been studied on the structure, charge distribution, and proton affinity …

Chromophore Distortions in the Bacteriorhodopsin Photocycle: Evolution of the H− C14− C15− H Dihedral Angle Measured by Solid-State NMR

JC Lansing, M Hohwy, CP Jaroniec, AFL Creemers… - Biochemistry, 2002 - ACS Publications
In recent years, structural information about bacteriorhodopsin has grown substantially with
the publication of several crystal structures. However, precise measurements of the …

Role of Isomerization Barriers in the pKa Control of the Retinal Schiff Base:  A Density Functional Study

E Tajkhorshid, B Paizs, S Suhai - The Journal of Physical …, 1999 - ACS Publications
The barriers to the rotation of all conventional single and double bonds have been
calculated in a model Schiff base which is structurally very close to the retinal Schiff base …

Structure of rhodopsin in monolayers at the air− water interface: a PM-IRRAS and X-ray reflectivity study

H Lavoie, B Desbat, D Vaknin, C Salesse - Biochemistry, 2002 - ACS Publications
Monomolecular films of the membrane protein rhodopsin have been investigated in situ at
the air− water interface by polarization modulation infrared reflection absorption …

Interpreting nonlinear optics of biopolymer assemblies: Finding a hook

EJ Gualtieri, LM Haupert, GJ Simpson - Chemical Physics Letters, 2008 - Elsevier
The field of nonlinear optics has witnessed a rapid growth into biology within the last
decade, driven largely by the observations of large nonlinear optical signals from native …

Modular ellipsometric approach for mining structural information from nonlinear optical polarization analysis

RM Plocinik, RM Everly, AJ Moad, GJ Simpson - Physical Review B …, 2005 - APS
An ellipsometric approach is described for interpreting polarization information in surface
second harmonic generation (SHG). The general applicability of nonlinear optical …

Optical chirality of bacteriorhodopsin films via second harmonic Maker's fringes measurements

MC Larciprete, A Belardini, C Sibilia, M Saab… - Applied Physics …, 2010 - pubs.aip.org
We experimentally investigated second harmonic generation from an oriented multilayer film
of bacteriorhodopsin protein, deposited onto a charged surface. The generated signal is …

First hyperpolarizability of bacteriorhodopsin, retinal and related molecules revisited

S Ghosh, AS Ranjini, R Pandey, PK Das - Chemical Physics Letters, 2009 - Elsevier
The previously reported β values of BR and retinal based chromophores were very high but
subsequent measurements found them to be much less. We have found that the β values of …