Gain and Raman line-broadening with graphene coated diamond-shape nano-antennas

Nanoscale ◽  
2015 ◽  
Vol 7 (37) ◽  
pp. 15321-15331 ◽  
Author(s):  
Charilaos Paraskevaidis ◽  
Tevye Kuykendall ◽  
Mauro Melli ◽  
Alexander Weber-Bargioni ◽  
P. James Schuck ◽  
...  
Keyword(s):  
Raman Line ◽  
Line Broadening ◽  
Bow Tie ◽  
Nano Antennas

Although diamond-shape (D-ant) and bow-tie (BT) antennas are but inverted structures, D-ant portray unprecedented amplification and intensity-dependent line-broadening.

Critical Raman line shape behavior of fluid nitrogen

2004 ◽  
Vol 76 (1) ◽  
pp. 147-155 ◽  
Author(s):  
M. Musso ◽  
F. Matthai ◽  
D. Keutel ◽  
K.-L. Oehme
Keyword(s):  
Raman Line ◽  
Line Shape ◽  
Line Broadening ◽  
Vibrational Resonance ◽  
Critical Isochore ◽  
Molecular Fluids ◽  
Detection Techniques ◽  
Gas Phases ◽  
Line Shapes ◽  
Band Position

Isotropic Raman line shapes of simple molecular fluids exhibit critical line broadening near their respective liquid-gas critical points. In order to observe this phenomenon, it is essential that the band position of a given vibrational mode is density-dependent, and that vibrational depopulation processes negligibly contribute to line broadening. Special attention was given to the fact that the isotropic (i.e., nonrotationally broadened) line shape of liquid N2 is affected by resonant intermolecular vibrational interactions between identical oscillators. By means of the well-chosen isotopic mixture (14N2).975 - (14N15N).025, the temperature and density dependences of shift, width, and asymmetry of the resonantly coupled 14N2 and, depending on the S/N ratio available, of the resonantly uncoupled 14N15N were determined, with up to milli-Kelvin resolution, in the coexisting liquid and gas phases and along the critical isochore, using a highest-resolution double monochromator and modern charge-coupled device detection techniques. Clear evidence was found that vibrational resonance couplings are present in all dense phases studied.

scholarly journals Integration of bow-tie plasmonic nano-antennas on tapered fibers

2017 ◽  
Vol 25 (8) ◽  
pp. 8986 ◽  
Author(s):  
Abdul Khaleque ◽  
Evgeny G. Mironov ◽  
Jonas H. Osório ◽  
Ziyuan Li ◽  
Cristiano M. B. Cordeiro ◽  
...  
Keyword(s):  
Bow Tie ◽  
Nano Antennas

Composition dependence of optical phonon energies and Raman line broadening in hexagonalAlxGa1−xNalloys

2002 ◽  
Vol 65 (12) ◽  
Author(s):  
V. Yu. Davydov ◽  
I. N. Goncharuk ◽  
A. N. Smirnov ◽  
A. E. Nikolaev ◽  
W. V. Lundin ◽  
...  
Keyword(s):  
Raman Line ◽  
Optical Phonon ◽  
Composition Dependence ◽  
Line Broadening

scholarly journals Calculation of the Raman line broadening on carbonation in synthetic hydroxyapatite

1988 ◽  
Vol 19 (1) ◽  
pp. 13-21 ◽  
Author(s):  
F. F. M. de Mul ◽  
C. Otto ◽  
J. Greve ◽  
J. Arends ◽  
J. J. Ten Bosch
Keyword(s):  
Raman Line ◽  
Line Broadening ◽  
Synthetic Hydroxyapatite

Optimization of Plasmonic Nano-Antennas

2008 ◽  
Vol 1077 ◽  
Author(s):  
Ibrahim Kursat Sendur ◽  
Orkun Karabasoglu ◽  
Eray Abdurrahman Baran ◽  
Gullu Kiziltas
Keyword(s):  
Incident Light ◽  
Transmission Efficiency ◽  
Optimization Framework ◽  
Electromagnetic Model ◽  
Full Wave ◽  
Gradient Based ◽  
Geometrical Effects ◽  
Optimization Solvers ◽  
Bow Tie ◽  
Nano Antennas

ABSTRACTInteraction of light with plasmonic nano-antennas is investigated. First, an extensive parametric study is performed on the material and geometrical effects on dipole and bow-tie nano-antennas. The transmission efficiency is studied for various parameters including length, thickness, width, and composition of the antenna as well as the wavelength of incident light. The modeling and simulation of these structures is done using 3-D finite element method based full-wave solutions of Maxwell's equations. Next, a modeling-based automated design optimization framework is developed to optimize nano-antennas. The electromagnetic model is integrated with optimization solvers such as gradient-based optimization tools and genetic algorithms.

Rate of proton transfer in strong acids and Raman line broadening

1965 ◽  
Vol 39 ◽  
pp. 172 ◽  
Author(s):  
A. K. Covington ◽  
M. J. Tait ◽  
Lord Wynne-Jones
Keyword(s):  
Proton Transfer ◽  
Raman Line ◽  
Line Broadening ◽  
Strong Acids
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