Dielectric spiral nanoflower with a giant chiroptical effect (Conference Presentation)

Ting-Hui Xiao; Zhenzhou Cheng; Keisuke Goda

doi:10.1117/12.2508147

8 March 2019 Dielectric spiral nanoflower with a giant chiroptical effect (Conference Presentation)

Ting-Hui Xiao, Zhenzhou Cheng, Keisuke Goda

Proceedings Volume 10927, Photonic and Phononic Properties of Engineered Nanostructures IX; 109271J (2019) https://doi.org/10.1117/12.2508147
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

The chiroptical effect is a property that describes distinct response of matter to light with opposite handedness, which is extensively utilized in stereochemistry, analytical chemistry, metamaterials, and spin photonics. Conventionally, metallic nanostructures have been harnessed to generate a strong chiroptical effect with the assistance of surface plasmon resonance, but they usually suffer from low energy efficiency and large photothermal heat generation due to the high ohmic loss of metallic materials, which severely restricts their practical applications. Here we present a dielectric spiral nanoflower with a giant chiroptical effect produced by magnetic resonance. We theoretically predicted the giant chiroptical effect of the spiral nanoflower by numerical simulations and analyzed its underlying physics by combination of a multipole expansion method. Based on the theoretical design, we experimentally fabricated the spiral nanoflower and demonstrated its strong chiroptical effect by characterizing its circular intensity difference (CID). The largest-to-date CID of 35% is demonstrated. The magnetic quadrupole interference within the spiral nanoflower was also clarified by experimentally tailoring its magnetic quadrupole interference. Our work is expected to overcome the limitation of conventional metallic platforms and pave the way toward the development of various highly efficient and thermostable chiroptical devices and applications.

Conference Presentation

Citation Download Citation

Ting-Hui Xiao, Zhenzhou Cheng, and Keisuke Goda "Dielectric spiral nanoflower with a giant chiroptical effect (Conference Presentation)", Proc. SPIE 10927, Photonic and Phononic Properties of Engineered Nanostructures IX, 109271J (8 March 2019); https://doi.org/10.1117/12.2508147

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

Dielectrics

Magnetism

Chemistry

Energy efficiency

Metamaterials

Nanostructures

Numerical simulations

Show All Keywords

Keywords/Phrases

Search In:

Publication Years