Prof. Song Sun Profile

Prof. Song Sun

Associate Professor at China Academy of Engineering Physics

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 17 September 2018 Presentation

All-round fluorescence enhancements using Ag-Si hybrid stack nanoantennas (Conference Presentation)

Song Sun, Ru Li, Mo Li, Qingguo Du, Ping Bai

Proceedings Volume 10722, 1072211 (2018) https://doi.org/10.1117/12.2320378

KEYWORDS: Luminescence, Nanoantennas, Silver, Silicon, Dielectrics, Molecules, Resonance enhancement, Quantum efficiency, Metals

Read Abstract +

Nanoantenna enhanced fluorescence is a promising method in many emergent applications such as single molecule detection. However, the excitation wavelengths and the emission wavelengths of emitters could be well-separated depending on their Stokes-shifts, preventing optimal fluorescence enhancement by a rudimental nanoantenna. Here we propose an Ag-Si hybrid stack nanoantenna, which comprises an Ag bottom cylinder and a Si top cylinder, to match the Stokes-shift of the fluorescence emitter. The Ag cylinder is designed to resonate at the excitation wavelength of the emitter, yielding a large field enhancement to boost the excitation rate of the emitter. Meanwhile, the resonance of the low loss Si cylinder is designed to match the emission wavelength of the emitter, boosting the radiative decay rate by more than one order of magnitude and maintaining a high quantum yield. As a result, all-round enhancements in the fluorescence emission are achieved. Preliminary studies show that the hybrid stack nanoantenna can produce two times more fluorescence enhancement, and 20 times larger far field intensity comparing to those of a pure metallic nanoantenna. On top of that, around 70% of the overall radiation has been directed towards the dielectric cap side, which would be beneficial to the collection efficiency. This design fully leverages the advantages of both metal and dielectric, which could be useful in the fluorescence enhancement applications.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years