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电子回旋脉塞中电子驱动的旋转模式的轨道角动量（OAM）。

Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers.

机构信息

Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea.

Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea.

出版信息

Sci Rep. 2017 Jun 13;7(1):3372. doi: 10.1038/s41598-017-03533-y.

DOI:10.1038/s41598-017-03533-y
PMID:28611352
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5469808/
Abstract

The well-defined orbital angular momentum (OAM) of rotating cavity modes operating near the cutoff frequency excited by gyrating electrons in a high-power electron cyclotron maser (ECM)-a gyrotron-has been derived by photonic and electromagnetic wave approaches. A mode generator was built with a high-precision 3D printing technique to mimic the rotating gyrotron modes for precise low-power measurements and shows clear natural production of higher-order OAM modes. Cold-test measurements of higher-order OAM mode generation promise the realization towards wireless long-range communications using high-power ECMs.

摘要

通过光子和电磁波方法，推导出了在高功率电子回旋脉塞（ECM）-回旋管中，由旋转电子激发的接近截止频率的旋转腔模式所具有的明确定义的轨道角动量（OAM）。通过高精度的 3D 打印技术制造了一个模式发生器，以模拟旋转回旋管模式，从而进行精确的低功率测量，并显示出清晰的高阶 OAM 模式的自然产生。对高阶 OAM 模式产生的冷测试测量有望实现使用高功率 ECM 进行无线远程通信。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/87d76c370175/41598_2017_3533_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/d0c61524c862/41598_2017_3533_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/e423d2205878/41598_2017_3533_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/546f80fe05ea/41598_2017_3533_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/90f91f110d3a/41598_2017_3533_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/32aeae7fa47d/41598_2017_3533_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/05deca5410cc/41598_2017_3533_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/41bf222ecb1f/41598_2017_3533_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/dd28090090ca/41598_2017_3533_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/87d76c370175/41598_2017_3533_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/d0c61524c862/41598_2017_3533_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/e423d2205878/41598_2017_3533_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/546f80fe05ea/41598_2017_3533_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/90f91f110d3a/41598_2017_3533_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/32aeae7fa47d/41598_2017_3533_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/05deca5410cc/41598_2017_3533_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/41bf222ecb1f/41598_2017_3533_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/dd28090090ca/41598_2017_3533_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ea42/5469808/87d76c370175/41598_2017_3533_Fig9_HTML.jpg

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