Low-power nanoscale optical memory by upconversion-based photo-activation

Simone Lamon; Qiming Zhang; Min Gu

doi:10.1117/12.2642053

31 December 2022 Low-power nanoscale optical memory by upconversion-based photo-activation

Simone Lamon, Qiming Zhang, Min Gu

Proceedings Volume PC12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII; PC123220M (2022) https://doi.org/10.1117/12.2642053
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Far-field super-resolution optical technologies offer methods to high-capacity nanoscale optical memory. Typical approaches need high beam power and energy consumption. Because they can convert near-infrared excitation to ultraviolet and visible emission, upconversion nanoparticles show potential for photo-activation. Upconversion nanoparticles have metastable excited energy levels, enabling low-power stimulated emission depletion microscopy. We show the use of upconversion nanoparticles for low-power nanoscale photo-activation for high-capacity low-energy consumption optical memory. Upconversion nanoparticles were combined with photo-active compounds. Super-resolution irradiation excited upconversion nanoparticles for photo-activation in the nanocomposite. Written features showed nanoscale size under low-intensity irradiation and enabled multiple optical readouts.

Conference Presentation

Citation Download Citation

Simone Lamon, Qiming Zhang, and Min Gu "Low-power nanoscale optical memory by upconversion-based photo-activation", Proc. SPIE PC12322, Nanophotonics, Micro/Nano Optics, and Plasmonics VIII, PC123220M (31 December 2022); https://doi.org/10.1117/12.2642053

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