Probing nanoscale chirality using decoupled optical force nanoscopy

Yang Zhao

doi:10.1117/12.3028660

4 October 2024 Probing nanoscale chirality using decoupled optical force nanoscopy

Yang Zhao

Proceedings Volume 13117, Enhanced Spectroscopies and Nanoimaging 2024; 131170F (2024) https://doi.org/10.1117/12.3028660
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Scanning probe technologies offer unparalleled insights into nanoscale light-matter interactions but are often hindered by the complex interplay of concurrent light-induced effects. To overcome this limitation, we have recently developed a technique known as decoupled optical force nanoscopy (Dofn). Dofn uniquely separates light-induced forces—such as optical gradient, photoacoustic, and photothermal effects—by employing a designated modulation and demodulation of the phases of measured optical forces. In my presentation, I will discuss how Dofn enables the precise probing of nanoscale chirality emerging from nanostructures, providing new avenues for understanding and manipulating light-matter interactions at the nanoscale.

Conference Presentation

Citation Download Citation

Yang Zhao "Probing nanoscale chirality using decoupled optical force nanoscopy", Proc. SPIE 13117, Enhanced Spectroscopies and Nanoimaging 2024, 131170F (4 October 2024); https://doi.org/10.1117/12.3028660

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