Document Detail


Lasing in plasmon-induced transparency nanocavity.
MedLine Citation:
PMID:  24105575     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We propose a plasmon-induced transparency (PIT) nanocavity for achieving nanoscopic coherent light source. The compact cavity is constructed by a pair of detuned nano-stubs incorporated with four-level gain medium. The PIT response enables the reduction of the coupling loss from cavity to waveguide while keeping the cavity size unchanged, different from the end-facet Fabry-Pérot cavity in which the radiation loss decreases at the cost of size increment. In order to study the lasing behavior of surface plasmon wave in the PIT cavity, the self-consistent finite element method is employed to model the interactions between gain and propagating surface plasmons. The dynamics of the whole lasing process is observed, and the linear output-input relation is obtained for the single mode plasmon lasing. It is demonstrated that smaller stub-pair detuning provides stronger feedback inside the cavity. Consequently, the lasing threshold of pumping rate decreases quadratically with the decreasing of detuning. However, the output-input extraction efficiency will improve when the detuning is not so small. One of the advantages for the proposal is that the lasing output power from the cavity can directly couple towards the metal-dielectric-metal waveguide platform, facilitating the field of integrated plasmonic circuits and molecular-scale coherent light source.
Authors:
Zi-Lan Deng; Jian-Wen Dong
Related Documents :
24032915 - Moving bragg grating solitons in a cubic-quintic nonlinear medium with dispersive refle...
20212795 - Saturation effect for h(2)o absorption lines at ruby laser wavelengths.
20615045 - Quantitative raman spectroscopy in turbid media.
20396185 - Measurements of pressure-broadening coefficients of no and o3 using a computerized tuna...
20941185 - Coherent doppler lidar signal covariance including wind shear and wind turbulence.
22623035 - A mean-field approach to elastically coupled hair bundles.
Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Optics express     Volume:  21     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-10-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  -    
Other Details:
Languages:  ENG     Pagination:  20291-20302     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  SiOC thin films: an efficient light source and an ideal host matrix for Eu<sup>2+</sup> ions.
Next Document:  Optical parametric gain and bandwidth in highly nonlinear tellurite hybrid microstructured optical f...