Intrinsic Optical Bistability of Photon Avalanching Nanocrystals
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915030375596032 |
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| author | Skripka, Artiom Zhang, Zhuolei Qi, Xiao Ursprung, Benedikt Ercius, Peter Cohen, Bruce E. Schuck, P. James Jaque, Daniel Chan, Emory M. |
| author_facet | Skripka, Artiom Zhang, Zhuolei Qi, Xiao Ursprung, Benedikt Ercius, Peter Cohen, Bruce E. Schuck, P. James Jaque, Daniel Chan, Emory M. |
| contents | Optically bistable materials respond to a single input with two possible optical outputs, contingent upon excitation history. Such materials would be ideal for optical switching and memory, yet limited understanding of intrinsic optical bistability (IOB) prevents development of nanoscale IOB materials suitable for devices. Here, we demonstrate IOB in Nd3+-doped KPb2Cl5 avalanching nanoparticles (ANPs), which switch with high contrast between luminescent and non-luminescent states, with hysteresis characteristic of bistability. We elucidate a nonthermal mechanism in which IOB originates from suppressed nonradiative relaxation in Nd3+ ions and from the positive feedback of photon avalanching, resulting in extreme, >200th-order optical nonlinearities. Modulation of laser pulsing tunes hysteresis widths, and dual-laser excitation enables transistor-like optical switching. This control over nanoscale IOB establishes ANPs for photonic devices in which light is used to manipulate light. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_04098 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Intrinsic Optical Bistability of Photon Avalanching Nanocrystals Skripka, Artiom Zhang, Zhuolei Qi, Xiao Ursprung, Benedikt Ercius, Peter Cohen, Bruce E. Schuck, P. James Jaque, Daniel Chan, Emory M. Optics Applied Physics Optically bistable materials respond to a single input with two possible optical outputs, contingent upon excitation history. Such materials would be ideal for optical switching and memory, yet limited understanding of intrinsic optical bistability (IOB) prevents development of nanoscale IOB materials suitable for devices. Here, we demonstrate IOB in Nd3+-doped KPb2Cl5 avalanching nanoparticles (ANPs), which switch with high contrast between luminescent and non-luminescent states, with hysteresis characteristic of bistability. We elucidate a nonthermal mechanism in which IOB originates from suppressed nonradiative relaxation in Nd3+ ions and from the positive feedback of photon avalanching, resulting in extreme, >200th-order optical nonlinearities. Modulation of laser pulsing tunes hysteresis widths, and dual-laser excitation enables transistor-like optical switching. This control over nanoscale IOB establishes ANPs for photonic devices in which light is used to manipulate light. |
| title | Intrinsic Optical Bistability of Photon Avalanching Nanocrystals |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2403.04098 |