Mr. Chul-Joon Heo Profile

Chul-Joon Heo

at KAIST

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 | 9 September 2008 Paper

Metal nanograil arrays with tunable multiple dipolar plasmon modes in integrated optofluidic devices for ultrasensitive sensing of biomolecules

Chul-Joon Heo, Se-Heon Kim, Se Gyu Jang, Su Yeon Lee, Su Kyeong Kim, Seung-Man Yang

Proceedings Volume 7039, 703915 (2008) https://doi.org/10.1117/12.794330

KEYWORDS: Gold, Nanostructures, Silica, Metals, Plasmonics, Nanolithography, Particles, Plasmons, Refractive index, Reactive ion etching

Read Abstract +

Biomolecular detection using Localized Surface Plasmon Resonances (LSPR) has been extensively investigated because these techniques enable label-free detection. The high-density metal nanopatterns with tunable LSPR characteristics have been used as refractive index sensing because LSPR property is highly sensitive to refractive index change of surroundings. Meanwhile, Colloidal lithography is a robust method for fabricating regularly ordered nanostructures in a controlled and reproducible way using spontaneous assembly of colloidal particles. In this study, nanopatterns on UV-curable polymer were prepared via colloidal lithography. Then, metallic nanograil arrays with high density were fabricated by sputtering noble metals such as gold and subsequent removal of residual polymers and colloidal particles. From Finite-Difference Time-Domain Method (FDTD) simulations and reflectance spectra, we found that multiple dipolar plasmon modes were induced by gold nanograil arrays and each mode was closely related with structural parameters. LSPR characteristics of gold nanograil arrays could be tuned by varying the fabrication conditions to obtain optimal structures for LSPR sensing. Sensing behavior of gold nanograil arrays was tested by applying various solvents with different refractive indices and measuring the variations of LSPR dips. Finally, gold nanograil arrays as LSPR sensors were integrated in optofluidic devices and used to achieve real-time label-free monitoring of biomolecules.

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