Longitudinal phonon plasmon mode coupling in β-Ga2O3

2019 ◽  
Vol 114 (10) ◽  
pp. 102102 ◽  
Author(s):  
Mathias Schubert ◽  
Alyssa Mock ◽  
Rafał Korlacki ◽  
Sean Knight ◽  
Zbigniew Galazka ◽  
...  
2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Saïd Bakhti ◽  
Alexandre V. Tishchenko ◽  
Xavier Zambrana-Puyalto ◽  
Nicolas Bonod ◽  
Scott D. Dhuey ◽  
...  

2009 ◽  
Vol 80 (20) ◽  
Author(s):  
J. W. Lee ◽  
T. H. Park ◽  
Peter Nordlander ◽  
Daniel M. Mittleman

Plasmonics ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 335-340 ◽  
Author(s):  
Fukun Shi ◽  
Guiyao Zhou ◽  
Duanming Li ◽  
Lu Peng ◽  
Zhiyun Hou ◽  
...  

Author(s):  
Bingnan Wang ◽  
Jianjian Wang ◽  
Chungwei Lin ◽  
Koon Hoo Teo

2015 ◽  
Vol 29 (29) ◽  
pp. 1550212 ◽  
Author(s):  
Ya Feng Song ◽  
Qin Sheng Zhu ◽  
Xiang Lin Liu ◽  
Shao Yan Yang ◽  
Zhan Guo Wang

We investigate the plasmon mode coupling and depolarization shifts in AlGaAs/GaAs asymmetric step quantum wells (ASQWs) of the two-subband model with the Bohm–Pine’s random-phase approximation with and without an applied electric field. By adjusting the well geometry parameters and material composition systematically, various characteristics of plasmons in ASQWs are found for different asymmetric cases. We find that (i) the intersubband plasmon has a large negative dispersion in long wavelength limit; (ii) the step width related depolarization shift depends on the number of subbands in the deep well; and (iii) the influence of electric field effect on depolarization shift and the coupling of the two plasmon modes is quite asymmetric with its minimum at +8 kV/cm by changing the electrical field and the ASQW structure parameters. The coupling and decoupling of the intersubband and intrasubband plasmon modes can be realized by adjusting the polarity and the strength of the external electric field and changing the ASQW structure parameters.


1998 ◽  
Vol 77 (2) ◽  
pp. 305-311 ◽  
Author(s):  
Thomas Scheidsteger, Rolf Schilling

2017 ◽  
Author(s):  
Pedro M. R. Paulo ◽  
David Botequim ◽  
Agnieszka Jóskowiak ◽  
Sofia Martins ◽  
Duarte M. F. Prazeres ◽  
...  

<div> <div> <div> <p>We have employed DNA-directed assembly to prepare dimers of gold nanoparticles and used their longitudinally coupled plasmon mode to enhance the fluorescence emission of an organic red-emitting dye, Atto-655. The plasmon- enhanced fluorescence of this dye using dimers of 80 nm particles was measured at single molecule detection level. The top enhancement factors were above 1000-fold in 71% of the dimers within a total of 32 dimers measured, and, in some cases, they reached almost 4000-fold, in good agreement with model simulations. Additionally, fluorescence lifetime correlation analysis enabled the separation of enhanced from non-enhanced emission simultaneously collected in our confocal detection volume. This approach allowed us to recover a short relaxation component exclusive to enhanced emission that is attributed to the interaction of the dye with DNA in the interparticle gaps. </p> </div> </div> </div>


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