scholarly journals Graphene Plasmonics: Approaching the Intrinsic Lifetime and Modulating a Graphene Plasmonic Resonance at a Few Hundred GHz (Advanced Optical Materials 11/2019)

2019 ◽  
Vol 7 (11) ◽  
pp. 1970040
Author(s):  
Tong Ye ◽  
Bo Wang ◽  
Chun Wang ◽  
Zhiyuan Li ◽  
Zhenwei Zhang ◽  
...  
Keyword(s):  
Optical Materials ◽  
Plasmonic Resonance ◽  
Graphene Plasmonics

scholarly journals Long- and short-ranged chiral interactions in DNA-assembled plasmonic chains

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kevin Martens ◽  
Felix Binkowski ◽  
Linh Nguyen ◽  
Li Hu ◽  
Alexander O. Govorov ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Gold Nanorods ◽  
Optical Materials ◽  
Dna Origami ◽  
Plasmonic Nanostructures ◽  
Plasmonic Resonance ◽  
Optical Fields ◽  
Metallic Structures ◽  
Complex Architectures ◽  
The Individual

AbstractCircular dichroism (CD) has long been used to trace chiral molecular states and changes of protein configurations. In recent years, chiral plasmonic nanostructures have shown potential for applications ranging from pathogen sensing to novel optical materials. The plasmonic coupling of the individual elements of such metallic structures is a crucial prerequisite to obtain sizeable CD signals. We here identify and implement various coupling entities—chiral and achiral—to demonstrate chiral transfer over distances close to 100 nm. The coupling is realized by an achiral nanosphere situated between a pair of gold nanorods that are arranged far apart but in a chiral fashion using DNA origami. The transmitter particle causes a strong enhancement of the CD response, the emergence of an additional chiral feature at the resonance frequency of the nanosphere, and a redshift of the longitudinal plasmonic resonance frequency of the nanorods. Matching numerical simulations elucidate the intricate chiral optical fields in complex architectures.

scholarly journals Two‐Dimensional Optics: Graphene Plasmonics: A Platform for 2D Optics (Advanced Optical Materials 3/2019)

2019 ◽  
Vol 7 (3) ◽  
pp. 1970009
Author(s):  
Yuancheng Fan ◽  
Nian‐Hai Shen ◽  
Fuli Zhang ◽  
Qian Zhao ◽  
Hongjing Wu ◽  
...  
Keyword(s):  
Optical Materials ◽  
Two Dimensional ◽  
Graphene Plasmonics

Structural/Property Relationships for Optical Materials

1993 ◽  
Vol 329 ◽  
Author(s):  
Vivien D.
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Electronic Structure ◽  
Chemical Composition ◽  
Field Strength ◽  
Optical Materials ◽  
Site Occupancy ◽  
Laser Materials ◽  
Crystal Field Strength ◽  
The Matrix

AbstractIn this paper the relationships between the crystal structure, chemical composition and electronic structure of laser materials, and their optical properties are discussed. A brief description is given of the different laser activators and of the influence of the matrix on laser characteristics in terms of crystal field strength, symmetry, covalency and phonon frequencies. The last part of the paper lays emphasis on the means to optimize the matrix-activator properties such as control of the oxidation state and site occupancy of the activator and influence of its concentration.

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