scholarly journals Nanophotonics shines light on hyperbolic metamaterials

2022 ◽  
Vol 11 (1) ◽  
Author(s):  
Andreas Aigner ◽  
Judith M. Dawes ◽  
Stefan A. Maier ◽  
Haoran Ren
Keyword(s):  
Dispersion Relation ◽  
Density Of States ◽  
High Density ◽  
Comprehensive Review ◽  
Hyperbolic Metamaterials ◽  
Propagating Waves ◽  
Hyperbolic Dispersion

AbstractHyperbolic metamaterials with a unique hyperbolic dispersion relation allow propagating waves with infinitely large wavevectors and a high density of states. Researchers from Korea and Singapore provide a comprehensive review of hyperbolic metamaterials, including artificially structured hyperbolic media and natural hyperbolic materials. They explain key nanophotonic concepts and describe a range of applications for these versatile materials.

scholarly journals Deep Subwavelength Power Concentration-Based Hyperbolic Metamaterials

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Amanpreet Kaur ◽  
Saptarshi Banerjee ◽  
Wangshi Zhao ◽  
Jayanti Venkataraman ◽  
Zhaolin Lu
Keyword(s):  
Electromagnetic Waves ◽  
Light Propagation ◽  
Spot Size ◽  
Diffraction Limit ◽  
Evanescent Waves ◽  
Hyperbolic Metamaterials ◽  
Preferred Direction ◽  
Propagating Waves ◽  
Medium Design ◽  
Collimated Beam

Hyperbolic metamaterials can manipulate electromagnetic waves by converting evanescent waves into propagating waves and thus support light propagation without diffraction limit. In this paper, deep subwavelength focusing (or power concentration) is demonstrated both numerically and experimentally using hyperbolic metamaterials. The results verify that hyperbolic metamaterials can focus a broad collimated beam to spot size of ~λ0/6 using wired medium design for both normal and oblique incidence. The nonmagnetic design, no-cut-off operation, and preferred direction of propagation in these materials significantly reduce the attenuation in electromagnetic waves.

scholarly journals Discrete and Weyl density of states for photonic dispersion relation

2019 ◽  
Vol 94 (10) ◽  
pp. 105001
Author(s):  
Alhun Aydin ◽  
Thomas Oikonomou ◽  
G Baris Bagci ◽  
Altug Sisman
Keyword(s):  
Dispersion Relation ◽  
Density Of States

The Photoelectron Spectrum of 1-Bromonortricyclene

1985 ◽  
Vol 38 (1) ◽  
pp. 69 ◽  
Author(s):  
EW Della ◽  
PE Pigou ◽  
MK Livett ◽  
JB Peel
Keyword(s):  
Energy Range ◽  
Ab Initio ◽  
Molecular Orbital ◽  
Density Of States ◽  
Ionization Energy ◽  
Photoelectron Spectrum ◽  
Valence Electron ◽  
Alkyl Halide ◽  
High Density ◽  
Molecular Orbital Calculations

The He I photoelectron spectrum of 1-bromotricyclo[2.2.1.02.6] heptane (1- bromonortricyclene ) is compared with that of the parent alkane . Extensive conjugation between bromine and alkane orbitals in the low ionization-energy range produces a complex band pattern which is adequately described by ab initio valence-electron molecular orbital calculations. Consequently 1-bromo-nortricyclene presents a rare example of an alkyl halide in which the halogen character is neither highly localized nor smeared over a high density of states.

Lateral-Coupling-Induced Modification of Density of States and Exciton Dynamics in High-Density Ordered In0.4Ga0.6As/GaAs(311)BQuantum Dot Arrays

2002 ◽  
Vol 41 (Part 1, No. 6A) ◽  
pp. 3766-3770 ◽  
Author(s):  
Satoshi Nishikawa ◽  
Sheng Lan ◽  
Osamu Wada ◽  
Tetsuya Nishimura ◽  
Kouichi Akahane ◽  
...  
Keyword(s):  
Density Of States ◽  
High Density ◽  
Exciton Dynamics ◽  
Lateral Coupling

scholarly journals Electronically patterning through one-dimensional nanostripes with high density of states on single-crystalline Al2O3 domain

2008 ◽  
Vol 93 (14) ◽  
pp. 143104 ◽  
Author(s):  
Pin-Jui Hsu ◽  
Chii-Bin Wu ◽  
Hong-Yu Yen ◽  
Sheng-Syun Wong ◽  
Wen-Chin Lin ◽  
...  
Keyword(s):  
Density Of States ◽  
High Density ◽  
Single Crystalline ◽  
One Dimensional
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