巨型量子点的纳米空腔增强二次谐波发生

IF 6.5 1区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Photonics Pub Date : 2025-04-07 DOI:10.1021/acsphotonics.5c00472

David Sharp, Abhinav Kala, Hannah Rarick, Hao A. Nguyen, Elise Skytte, Brandi M. Cossairt, Arka Majumdar

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引用次数: 0

摘要

胶体量子点（QDs）是一种有吸引力的非线性光学介质和与光子器件的确定性异质集成。通过将量子点与低模体积光子纳米腔耦合，可以进一步增强其固有的非线性，从而实现低功耗、片上非线性光学。在本文中，我们证明了通过集成巨大的量子点与氮化硅纳米束腔腔增强二次谐波的产生。通过用超快脉冲激光泵浦腔-QD系统，我们观察到腔耦合QD产生强二次谐波，我们估计增强因子为~ 2070。我们的工作，加上之前报道的巨大量子点的确定性定位，可以为低功率非线性光学提供可扩展的量子点腔平台。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Nanocavity-Enhanced Second-Harmonic Generation from Colossal Quantum Dots

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Nanocavity-Enhanced Second-Harmonic Generation from Colossal Quantum Dots

Colloidal quantum dots (QDs) are an attractive medium for nonlinear optics and deterministic heterogeneous integration with photonic devices. Their intrinsic nonlinearities can be strengthened further by coupling QDs to low mode-volume photonic nanocavities, enabling low-power, on-chip nonlinear optics. In this paper, we demonstrated cavity-enhanced second harmonic generation via integration of colossal QDs with a silicon nitride nanobeam cavity. By pumping the cavity-QD system with an ultrafast pulsed laser, we observed a strong second harmonic generation from the cavity-coupled QD, and we estimate an enhancement factor of ∼2070. Our work, coupled with previously reported deterministic positioning of colossal QDs, can enable a scalable QD-cavity platform for low-power nonlinear optics.

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来源期刊

ACS Photonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

11.90

自引率

5.70%

发文量

438

审稿时长

2.3 months

期刊介绍： Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.