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説明:

The unique optical properties of two-dimensional layered materials are attractive for achieving increased functionality in integrated photonics. Owing to the van der Waals nature, these materials are ideal for integrating with nanoscale photonic structures. Here we report on carefully designed air-mode silicon photonic crystal nanobeam cavities for efficient control through two-dimensional materials. By systematically investigating various types and thickness of two-dimensional materials, we are able to show that enhanced responsivity allows for giant shifts of the resonant wavelength. With atomically precise thickness over a macroscopic area, few-layer flakes give rise to quantization of the mode shifts. We extract the dielectric constant of the flakes and find that it is independent of the layer number down to a monolayer. Flexible reconfiguration of a cavity is demonstrated by stacking and removing ultrathin flakes. With an unconventional cavity design, our results open up new possibilities for photonic devices integrated with two-dimensional materials.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: 2D materials, photonic crystal, nanobeam cavity

刊行年月日: 2022-07-10

出版者: Wiley

掲載誌:

• Advanced Optical Materials (ISSN: 21951071) vol. 10 issue. 19

研究助成金:

• Japan Society for the Promotion of Science JP20K15199
• Japan Society for the Promotion of Science JP20H02558
• Japan Society for the Promotion of Science JP20J00817
• Japan Society for the Promotion of Science JP20K15120
• Japan Society for the Promotion of Science JP20K15137
• Japan Society for the Promotion of Science JP19K23593
• Japan Society for the Promotion of Science JP18H03864
• Japan Society for the Promotion of Science JP19H00755
• Japan Society for the Promotion of Science JP21H05232
• Japan Society for the Promotion of Science JP19H05790
• Japan Society for the Promotion of Science JP20H00354
• Japan Society for the Promotion of Science JP21H05237
• Japan Society for the Promotion of Science JP21H05233
• Ministry of Internal Affairs and Communications SCOPE 191503001
• Ministry of Education, Culture, Sports, Science and Technology JPMXP0112101001
• Ministry of Education, Culture, Sports, Science and Technology JPMXP09F19UT0075

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1002/adom.202200538

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更新時刻: 2025-02-26 08:30:54 +0900

MDRでの公開時刻: 2025-02-26 08:30:54 +0900