scholarly journals Extreme local field enhancement by hybrid epsilon-near-zero–plasmon mode in thin films of transparent conductive oxides

2020 ◽  
Vol 45 (20) ◽  
pp. 5744
Author(s):  
Innem V. A. K. Reddy ◽  
Josep M. Jornet ◽  
Alexander Baev ◽  
Paras N. Prasad
Nanophotonics ◽  
2020 ◽  
Vol 9 (16) ◽  
pp. 4831-4837
Author(s):  
Alexander Baev ◽  
Paras N. Prasad ◽  
M. Zahirul Alam ◽  
Robert W. Boyd

AbstractFor p-polarized light incident on an interface between an ordinary dielectric and an epsilon-near-zero (ENZ) material, an enhancement of the component of the electric field, normal to this interface, has been shown to occur. This local field enhancement holds great promise for amplifying nonlinear optical processes and for other applications requiring ultrastrong local fields in epsilon-near-zero based technologies. However, the loss associated with the imaginary part of the dielectric constant of an epsilon-near-zero material can greatly suppress the field enhancement factor. In this study, we analyze, using density matrix formalism, the field enhancement factor for a saturable two-level system that exhibits second- and third-order nonlinearities. We show that, in such a system, an almost lossless ENZ response can arise as a consequence of saturable nonlinearity and that the local field enhancement factor can be readily controlled dynamically by adjusting the intensity of the incident electromagnetic wave. Our findings provide for the first time a pathway to design a material exhibiting an external field responsive epsilon-near-zero behavior for applications in nonlinear photonics.


2019 ◽  
Vol 7 (47) ◽  
pp. 26797-26803 ◽  
Author(s):  
Zhi Yong Bao ◽  
Shenghua Liu ◽  
Yidong Hou ◽  
Aixue Shang ◽  
Feng Yan ◽  
...  

The interplay between local field enhancement and plasmon resonance energy transfer boosts the performance of hollow Au nanorattle-incorporated organic photovoltaics.


2015 ◽  
Vol 33 (2) ◽  
pp. 368-371 ◽  
Author(s):  
Andrea Blanco-Redondo ◽  
Paulo Sarriugarte ◽  
Angel Garcia-Adeva ◽  
Joseba Zubia ◽  
Rainer Hillenbrand

2018 ◽  
Vol 101 (6) ◽  
pp. 48-57 ◽  
Author(s):  
Muneaki Kurimoto ◽  
Hiroya Ozaki ◽  
Tooru Sawada ◽  
Toshihisa Funabashi ◽  
Takeyoshi Kato ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document