JP6536938B2 - トポロジカルフォトニック結晶 - Google Patents
トポロジカルフォトニック結晶 Download PDFInfo
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- JP6536938B2 JP6536938B2 JP2015034902A JP2015034902A JP6536938B2 JP 6536938 B2 JP6536938 B2 JP 6536938B2 JP 2015034902 A JP2015034902 A JP 2015034902A JP 2015034902 A JP2015034902 A JP 2015034902A JP 6536938 B2 JP6536938 B2 JP 6536938B2
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- 239000004038 photonic crystal Substances 0.000 title claims description 29
- 229910052710 silicon Inorganic materials 0.000 claims description 31
- 239000010703 silicon Substances 0.000 claims description 31
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 30
- 230000005291 magnetic effect Effects 0.000 description 13
- 238000009826 distribution Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000013598 vector Substances 0.000 description 10
- 230000005684 electric field Effects 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
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- 230000005355 Hall effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
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- 241000121629 Majorana Species 0.000 description 1
- 235000021028 berry Nutrition 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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Description
ここで、前記領域は2枚の互いに平行な金属板で挟まれてよい。
また、前記金属板は金からなってよい。
また、前記誘電体円柱はシリコンからなってよい。
また、前記誘電体円柱の周囲を埋める誘電体は空気または真空であってよい。
フォトニック軌道の電界Ezの分布を示す図。(b)正及び負の角運動量を持つ電界Ezの分布
及び
を示す図。
(黒い矢印)である。
誘電材料中の電磁波のTMモード(つまり、有限の平面内Hx、Hy及び面外Ex成分;他はゼロ)について検討する。簡単化のため、考慮している周波数領域における誘電率は周波数に依存しない実数とみなす。この場合、周波数ωの電磁波モードについてのマスター方程式は、Maxwell方程式より以下のように与えられる(非特許文献34):
本発明者は、図1(a)により与えられる単位ベクトル
Claims (5)
- 平面上に互いに平行に立設された複数の誘電体円柱を有すると共に前記誘電体円柱の周囲が前記誘電体円柱を構成する誘電体とは異なる誘電率を有する誘電体で埋められた領域を設け、
前記領域において、前記複数の誘電体円柱は同じ大きさの正六角形に配置された誘電体円柱の複数の組に分けられ、
前記誘電体円柱の複数の組に対応する複数の前記正六角形の中心は三角格子の格子点に配置されるとともに、前記正六角形の頂点は隣接する二つの前記格子点間を結ぶ格子線上に配置され、
前記正六角形の前記中心を通る対角線の長さを2Rとし、前記正六角形とそれに隣接する前記正六角形との中心間の距離をa0とするとき、a0/R<3が成立すると共に、
電磁波のトポロジカルフォトニック状態が実現できることを特徴とするトポロジカルフォトニック結晶。 - 前記領域は2枚の互いに平行な金属板で挟まれる、請求項1に記載のトポロジカルフォトニック結晶。
- 前記金属板は金からなる、請求項2に記載のトポロジカルフォトニック結晶。
- 前記誘電体円柱はシリコンからなる、請求項1または2に記載のトポロジカルフォトニック結晶。
- 前記誘電体円柱の周囲を埋める誘電体は空気または真空である、請求項1から4の何れかに記載のトポロジカルフォトニック結晶。
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JP6536938B2 true JP6536938B2 (ja) | 2019-07-03 |
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Families Citing this family (16)
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JP7333666B2 (ja) * | 2017-02-28 | 2023-08-25 | 学校法人上智学院 | 光デバイスおよび光デバイスの製造方法 |
JP7090861B2 (ja) * | 2017-02-28 | 2022-06-27 | 学校法人上智学院 | 光デバイスおよび光デバイスの製造方法 |
CN110161621B (zh) * | 2019-04-30 | 2020-11-03 | 江苏大学 | 一种基于蜂窝状结构的光子晶体慢光波导 |
CN110007398B (zh) * | 2019-04-30 | 2020-11-03 | 江苏大学 | 实现光子晶体拓扑边界态光子自旋引导机制的光波导 |
JP7318864B2 (ja) * | 2019-08-22 | 2023-08-01 | 国立大学法人東京工業大学 | トポロジカル光回路 |
EP4053607A4 (en) * | 2019-10-28 | 2023-09-13 | Institute of Physics, The Chinese Academy of Sciences | PHOTONIC CRYSTAL WITH TWO-DIMENSIONAL TOPOLOGY, DESIGN METHOD THEREOF AND APPLICATION IN A LASER |
CN110932091B (zh) * | 2019-12-06 | 2020-10-09 | 北京大学 | 一种基于能带反转光场限制效应的拓扑体态激光器及方法 |
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CN112596154B (zh) * | 2020-12-11 | 2022-06-14 | 江苏大学 | 一种新型拓扑光子晶体结构及光波导 |
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CN114488356B (zh) * | 2022-01-13 | 2023-06-20 | 华南理工大学 | 一种紧凑型微波拓扑分束器 |
CN114660719A (zh) * | 2022-03-09 | 2022-06-24 | 江苏大学 | 一种具有复杂晶胞的光子晶体结构及光波导 |
CN115343892B (zh) * | 2022-05-23 | 2023-04-11 | 天津大学 | 一种可编码多功能全电介质拓扑波导态开关 |
CN116105710B (zh) * | 2023-04-14 | 2023-06-09 | 中国人民解放军国防科技大学 | 基于环形谐振腔的拍频检测装置、角速度测量装置及方法 |
CN117239375B (zh) * | 2023-11-14 | 2024-01-19 | 香港科技大学(广州) | 基于拓扑超材料的片上频率路由器 |
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