Lasing in metallic nano-structures with Fano resonance
(Conference Presentation)

Jian-Wen Dong; Ya-Bin Chen; Zi-Lan Deng; En-Tao Liang

doi:10.1117/12.2237419

9 November 2016 Lasing in metallic nano-structures with Fano resonance (Conference Presentation)

Jian-Wen Dong, Ya-Bin Chen, Zi-Lan Deng, En-Tao Liang

Proceedings Volume 9920, Active Photonic Materials VIII; 99200D (2016) https://doi.org/10.1117/12.2237419
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Recently, plasmon laser has been attracted great attention at length scales below diffraction limit. It has been demonstrated not only in single nanocavity systems, but also been observed in periodic nanoplasmonic structures. We propose a kind of lasing scheme in a nano-grating with three slits and three metal strips (one fat metal strip and two thin metal strips) in each supercell. There exists a bright mode and a dark mode in the nano-grating, due to the inter-couple among the cavity modes in the slits. The most interesting issue is that such two modes can be independently controlled by tuning the widths of the fat and thin metal stripes. It enables the flexibility to choose the gain medium and the corresponding cavity surrounding in nanoscale. Based on such guideline, we investigate a lasing system consisting of nano-grating and Rhodamine dye molecules by using self-consistent finite element method. We show the lasing dynamic process with both the matched and mismatched nano-grating. As a result, when it well matches, the dark mode will provide higher feedback and amplification than those of the mismatched system. Consequently, when the same optical pump power is applied, the matched case will have shorter lasing onset time and higher output power than the mismatched structure. More calculations can conclude that the perfect-matched nano-grating system will have minimum threshold and maximum lasing slope efficiencies. Our findings may provide a new way on plasmon laser with low threshold and high efficiency.

Conference Presentation

Citation Download Citation

Jian-Wen Dong, Ya-Bin Chen, Zi-Lan Deng, and En-Tao Liang "Lasing in metallic nano-structures with Fano resonance (Conference Presentation)", Proc. SPIE 9920, Active Photonic Materials VIII, 99200D (9 November 2016); https://doi.org/10.1117/12.2237419

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Metals

Plasmons

Diffraction

Finite element methods

Laser damage threshold

Molecules

Nanoplasmonic structures

Show All Keywords

Keywords/Phrases

Search In:

Publication Years