Plasmonic circular dichroism in side-by-side oligomers of gold nanorods: the influence of chiral molecule location and interparticle distance

2015 ◽  
Vol 17 (12) ◽  
pp. 8187-8193 ◽  
Author(s):  
Shuai Hou ◽  
Hui Zhang ◽  
Jiao Yan ◽  
Yinglu Ji ◽  
Tao Wen ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Gold Nanorods ◽  
Interparticle Distance ◽  
Chiral Molecule ◽  
Highly Sensitive ◽  
Circular Dichroïsm

The CD signal of Au nanorod assemblies is highly sensitive to the chiral molecule location and the interparticle distance.

Chiral assembly of gold nanorods with collective plasmonic circular dichroism response

Soft Matter ◽  
2011 ◽  
Vol 7 (18) ◽  
pp. 8370 ◽  
Author(s):  
Rong-Yao Wang ◽  
Honglei Wang ◽  
XiaoChun Wu ◽  
Yinglu Ji ◽  
Peng Wang ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Gold Nanorods ◽  
Circular Dichroïsm

scholarly journals Circular Dichroism in Core Level Photoemission from an Adsorbed Chiral Molecule

2004 ◽  
Vol 92 (23) ◽  
Author(s):  
M. Polcik ◽  
F. Allegretti ◽  
D. I. Sayago ◽  
G. Nisbet ◽  
C. L. A. Lamont ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Core Level ◽  
Chiral Molecule ◽  
Circular Dichroïsm

Enantioselective Circular Dichroism Sensing of Cysteine and Glutathione with Gold Nanorods

2014 ◽  
Vol 87 (1) ◽  
pp. 357-361 ◽  
Author(s):  
Fu Zhu ◽  
Xinyu Li ◽  
Yuchen Li ◽  
Mei Yan ◽  
Shaoqin Liu
Keyword(s):  
Circular Dichroism ◽  
Gold Nanorods ◽  
Circular Dichroïsm

scholarly journals Mapping the broadband circular dichroism of copolymer films with supramolecular chirality in time and space

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Marius Morgenroth ◽  
Mirko Scholz ◽  
Min Ju Cho ◽  
Dong Hoon Choi ◽  
Kawon Oum ◽  
...  
Keyword(s):  
Biological Sciences ◽  
Circular Dichroism ◽  
Visible Spectral Range ◽  
Chiral Molecules ◽  
Widespread Application ◽  
Copolymer Films ◽  
Highly Sensitive ◽  
Circular Dichroïsm ◽  
Configuration And Conformation ◽  
Electronic Ground

AbstractMeasurements of the electronic circular dichroism (CD) are highly sensitive to the absolute configuration and conformation of chiral molecules and supramolecular assemblies and have therefore found widespread application in the chemical and biological sciences. Here, we demonstrate an approach to simultaneously follow changes in the CD and absorption response of photoexcited systems over the ultraviolet−visible spectral range with 100 fs time resolution. We apply the concept to chiral polyfluorene copolymer thin films and track their electronic relaxation in detail. The transient CD signal stems from the supramolecular response of the system and provides information regarding the recovery of the electronic ground state. This allows for a quantification of singlet−singlet annihilation and charge-pair formation processes. Spatial mapping of chiral domains on femtosecond time scales with a resolution of 50 μm and diffraction-limited steady-state imaging of the circular dichroism and the circularly polarised luminescence (CPL) of the films is demonstrated.

scholarly journals Circular dichroism in high harmonic generation from chiral molecules

2019 ◽  
Vol 205 ◽  
pp. 02001
Author(s):  
Yoichi Harada ◽  
Eisuke Haraguchi ◽  
Keisuke Kaneshima ◽  
Taro Sekikawa
Keyword(s):  
Circular Dichroism ◽  
Harmonic Generation ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Chiral Molecule ◽  
Chiral Molecules ◽  
Laser Fields ◽  
Circularly Polarized ◽  
Circular Dichroïsm

Circularly polarized high harmonic generation from a chiral molecule was found to significantly depend both on the chirality and on the rotating direction of the circularly polarized counter-rotating two-color driving laser fields.

A one-step homogeneous plasmonic circular dichroism detection of aqueous mercury ions using nucleic acid functionalized gold nanorods

2012 ◽  
Vol 48 (97) ◽  
pp. 11889 ◽  
Author(s):  
Yingyue Zhu ◽  
Liguang Xu ◽  
Wei Ma ◽  
Zhou Xu ◽  
Hua Kuang ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Nucleic Acid ◽  
Gold Nanorods ◽  
Mercury Ions ◽  
One Step ◽  
Aqueous Mercury ◽  
Circular Dichroïsm

A Design of Cesium Atomic Magnetometer Based on Circular Dichroism

2012 ◽  
Vol 203 ◽  
pp. 268-272 ◽  
Author(s):  
Xian Jin Zeng ◽  
Mo Si Hao ◽  
Qing Meng Li ◽  
Qiang Liu ◽  
Jun Hai Zhang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Circular Dichroism ◽  
Spin Exchange ◽  
Laser Light ◽  
Tracking System ◽  
Frequency Tracking ◽  
Highly Sensitive ◽  
Optical Configuration ◽  
Circular Dichroïsm ◽  
The Magnetic Field

Recently, atomic magnetometers have been reported as the most sensitive magnetometers by completely eliminating the spin exchange relaxation. In this paper, we described a design of highly sensitive cesium atomic magnetometer based on circular dichroism, which had the advantage of easily locking the probing laser to the necessary frequency compared with those based on circular birefringence. In order to polarize the cesium atoms uniformly, the pumping laser light was separated into two counter-propagating and counter-circular polarization beams through the atomic vapor cell. We employed a circular analyzer optical configuration to measure the ellipticity of the probing light, which indicated the amplitude of the magnetic field. The external magnetic field was tracked by a digital auto frequency tracking system.

Fabricating chiroptical starfruit-like Au nanoparticles via interface modulation of chiral thiols

Nanoscale ◽  
2017 ◽  
Vol 9 (31) ◽  
pp. 11093-11102 ◽  
Author(s):  
Jiao Yan ◽  
Yuandong Chen ◽  
Shuai Hou ◽  
Jiaqi Chen ◽  
Dejing Meng ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Circular Dichroism ◽  
Gold Nanorods ◽  
Au Nanoparticles ◽  
Circular Dichroïsm ◽  
Interface Modulation

With the help of chiral cysteine, starfruit-like gold nanoparticles are obtainedviaAu overgrowth on gold nanorods and show strong plasmonic circular dichroism response. Chiral thiol-initiated interface regulation is effective in fabricating discrete chiroptical nanostructures.

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