Shaping of multimer plasmonic fields with fractional angular momentum

Yuji Sunaba; Christophe Pin; Keiji Sasaki

doi:10.1117/12.3008381

20 September 2023 Shaping of multimer plasmonic fields with fractional angular momentum

Yuji Sunaba, Christophe Pin, Keiji Sasaki

Proceedings Volume 12606, Optical Manipulation and Structured Materials Conference; 126061D (2023) https://doi.org/10.1117/12.3008381
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

Angular momentum of light has been applied to various applications such as mechanical motion manipulation, optical communication, and sensing. Furthermore, we have proposed that it is possible to form optical fields with angular momentum in nanometer scale area using plasmonic fields of multimer nanoantennas and have succeeded in experimentally manipulating orbital rotation of nanoparticles and controlling the chirality of crystals. However, the angular momentum of light is converted due to the interaction between light and matter in the process of transmission from incident lights to the plasmonic fields, and the laws of the conversion have not yet been clarified. To form plasmonic fields with the desired angular momentum on the nanometer scale, it is necessary to unveil thse conversion laws. Therefore, we analyzed the electromagnetic fields of the plasmonic fields of multimer nanoantennas and clarified the conversion law governing the spin and orbital angular momentum transfer. We also show that the interference of multiple fields with converted angular momentum enables the forming of nanometer scale fields with fractional angular momentum.

Citation Download Citation

Yuji Sunaba, Christophe Pin, and Keiji Sasaki "Shaping of multimer plasmonic fields with fractional angular momentum", Proc. SPIE 12606, Optical Manipulation and Structured Materials Conference, 126061D (20 September 2023); https://doi.org/10.1117/12.3008381

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
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Angular momentum

Nanoantennas

Plasmonics

Incident light

Electric fields

Near field

Molecular interactions

Show All Keywords

Keywords/Phrases

Search In:

Publication Years