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Whispering Gallery Modes Formation in Small Nanocavities Based upon Crossed Nanobeam Structures

Received: 13 May 2014     Accepted: 29 May 2014     Published: 10 June 2014
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Abstract

In this paper, we investigate conditions to form whispering gallery modes (WGMs) in small nanocavities (NCs) which are designed at the intersection area of couple of nanobeams (NBs) structures. Tapered air-holes at each branch of NBs have been employed as a part of mirror accompanied by curved-walls at cross junctions to form a small curved nanocavity. Simulations by finite element based commercial software, COMSOL Multiphysics 4.3 show that confined photonic modes are well established via WGM mechanism. Variation of modes wavelength and their field intensity profiles have been investigated. Quality factor, Q, as high as 198400 is obtained for a particular WGM at mode wavelength 1471.9 nm with computed modal volume as low as Vmod≈0.25(λ/n)3.

Published in American Journal of Optics and Photonics (Volume 2, Issue 3)
DOI 10.11648/j.ajop.20140203.12
Page(s) 28-31
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Crossed Nanobeam Cavities, Photonic Wire, Whispering Gallery Modes, Curved-Wall Cavity, Tapered Air-Holes

References
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Cite This Article
  • APA Style

    Ahmadreza Daraei, Atefeh Mohsenifard, Mohammad Kafi Meibodi. (2014). Whispering Gallery Modes Formation in Small Nanocavities Based upon Crossed Nanobeam Structures. American Journal of Optics and Photonics, 2(3), 28-31. https://doi.org/10.11648/j.ajop.20140203.12

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    ACS Style

    Ahmadreza Daraei; Atefeh Mohsenifard; Mohammad Kafi Meibodi. Whispering Gallery Modes Formation in Small Nanocavities Based upon Crossed Nanobeam Structures. Am. J. Opt. Photonics 2014, 2(3), 28-31. doi: 10.11648/j.ajop.20140203.12

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    AMA Style

    Ahmadreza Daraei, Atefeh Mohsenifard, Mohammad Kafi Meibodi. Whispering Gallery Modes Formation in Small Nanocavities Based upon Crossed Nanobeam Structures. Am J Opt Photonics. 2014;2(3):28-31. doi: 10.11648/j.ajop.20140203.12

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  • @article{10.11648/j.ajop.20140203.12,
      author = {Ahmadreza Daraei and Atefeh Mohsenifard and Mohammad Kafi Meibodi},
      title = {Whispering Gallery Modes Formation in Small Nanocavities Based upon Crossed Nanobeam Structures},
      journal = {American Journal of Optics and Photonics},
      volume = {2},
      number = {3},
      pages = {28-31},
      doi = {10.11648/j.ajop.20140203.12},
      url = {https://doi.org/10.11648/j.ajop.20140203.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajop.20140203.12},
      abstract = {In this paper, we investigate conditions to form whispering gallery modes (WGMs) in small nanocavities (NCs) which are designed at the intersection area of couple of nanobeams (NBs) structures. Tapered air-holes at each branch of NBs have been employed as a part of mirror accompanied by curved-walls at cross junctions to form a small curved nanocavity. Simulations by finite element based commercial software, COMSOL Multiphysics 4.3 show that confined photonic modes are well established via WGM mechanism. Variation of modes wavelength and their field intensity profiles have been investigated. Quality factor, Q, as high as 198400 is obtained for a particular WGM at mode wavelength 1471.9 nm with computed modal volume as low as Vmod≈0.25(λ/n)3.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - Whispering Gallery Modes Formation in Small Nanocavities Based upon Crossed Nanobeam Structures
    AU  - Ahmadreza Daraei
    AU  - Atefeh Mohsenifard
    AU  - Mohammad Kafi Meibodi
    Y1  - 2014/06/10
    PY  - 2014
    N1  - https://doi.org/10.11648/j.ajop.20140203.12
    DO  - 10.11648/j.ajop.20140203.12
    T2  - American Journal of Optics and Photonics
    JF  - American Journal of Optics and Photonics
    JO  - American Journal of Optics and Photonics
    SP  - 28
    EP  - 31
    PB  - Science Publishing Group
    SN  - 2330-8494
    UR  - https://doi.org/10.11648/j.ajop.20140203.12
    AB  - In this paper, we investigate conditions to form whispering gallery modes (WGMs) in small nanocavities (NCs) which are designed at the intersection area of couple of nanobeams (NBs) structures. Tapered air-holes at each branch of NBs have been employed as a part of mirror accompanied by curved-walls at cross junctions to form a small curved nanocavity. Simulations by finite element based commercial software, COMSOL Multiphysics 4.3 show that confined photonic modes are well established via WGM mechanism. Variation of modes wavelength and their field intensity profiles have been investigated. Quality factor, Q, as high as 198400 is obtained for a particular WGM at mode wavelength 1471.9 nm with computed modal volume as low as Vmod≈0.25(λ/n)3.
    VL  - 2
    IS  - 3
    ER  - 

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Author Information
  • Department of Physics, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran

  • Department of Physics, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran

  • Department of Physics, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran

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