Metallic nanotrenches for terahertz studies on nano-confined molecules

Jeeyoon Jeong; Dai-Sik Kim

doi:10.1117/12.2593866

1 August 2021 Metallic nanotrenches for terahertz studies on nano-confined molecules

Jeeyoon Jeong, Dai-Sik Kim

Author Affiliations +

Proceedings Volume 11827, Terahertz Emitters, Receivers, and Applications XII; 118270H (2021) https://doi.org/10.1117/12.2593866
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

A pair of parallel metallic plates with nanometer-scale separations, or a ‘metallic nanotrench’, creates strongly enhanced electric field with uniform spatial distribution when a long wavelength radiation is incident. This property is not only useful for quantitative analysis of light-matter interactions, but also for potential electrochemical studies on nanoconfined molecules. Here, we show our progress on realizing sub-10 nm-wide metallic nanotrenches filled with various liquids to study interaction of nano-confined molecules with terahertz radiation. Large height-to-width aspect ratio and strong field enhancement of the nanotrenches enable sensitive detection of the nano-confined molecules, from which optical properties of the molecules can be determined. We demonstrate fabrication of the nanotrenches with widths as small as 2 nm, and study changes in their terahertz optical properties upon integration with various liquids. Also, we discuss anomalous optical properties of water molecules confined within sub-10 nm-wide metallic nanotrenches.

Conference Presentation

Citation Download Citation

Jeeyoon Jeong and Dai-Sik Kim "Metallic nanotrenches for terahertz studies on nano-confined molecules", Proc. SPIE 11827, Terahertz Emitters, Receivers, and Applications XII, 118270H (1 August 2021); https://doi.org/10.1117/12.2593866

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