Directly patterned perovskite metamaterials and light sources (Conference Presentation)

Qing Gu

doi:10.1117/12.2637695

3 October 2022 Directly patterned perovskite metamaterials and light sources (Conference Presentation)

Qing Gu

Proceedings Volume PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI; PC122080I (2022) https://doi.org/10.1117/12.2637695
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States

Abstract

Organic-inorganic lead halide perovskite has emerged as a remarkable gain material for nanoscale photonic devices ranging from lasers, LEDs, photodetectors, as well as photonic metamaterials. While the demonstration of electrically pumped lasing from perovskite is still elusive, optically pumped continuous wave (CW) lasing is a necessary intermediate step to achieve this goal. In this work, we show green lasing under quasi-CW optical pumping at peltier-cooling accessible 260K, from a directly patterned and encapsulated MAPbBr3 photonic crystal cavity. In the meantime, hyperbolic metamaterial (HMM) is a special class of anisotropic material that has drawn tremendous research attention recently, as it exhibits metal and dielectric features at the same time. This unique feature makes HMM’s isofrequency surface unbounded, and consequently, infinite wave vector values and optical density of states (DOS) can be achieved, leading to applications such as super resolution imaging, spontaneous emission enhancement, to topological photonics. However, only finite wave vector values and optical DOS can be experimentally achieved due to the inherent loss from the metal constituent, hindering the insertion of HMM into these applications. In order to overcome this hurdle, we experimentally demonstrated a luminescent MAPbI3 perovskite/Au HMMs, wherein the dielectric constituent is fully composed of perovskite gain, thus compensating the metal loss. Our work paves the way towards realizing nanoscale luminescent perovskite metamaterials and devices for insertion into photonic integrated circuits.

Conference Presentation

Citation Download Citation

Qing Gu "Directly patterned perovskite metamaterials and light sources (Conference Presentation)", Proc. SPIE PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI, PC122080I (3 October 2022); https://doi.org/10.1117/12.2637695

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