Parametric studies of whispering-gallery mode resonators

Haiyong Quan, Zhixiong Guo, Stanley K H Pau

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

This report characterizes the whispering-gallery mode (WGM) resonators with the design of waveguide and microdisk coupling microstructure. In order to understand and optimize the design, studies over a broad range of resonator configuration parameters including the microdisk size, the gap separating the microdisk and waveguide, and the waveguide width are numerically conducted. The finite element method is used for solving the Maxwell's equations which govern the propagation of electromagnetic (EM) field and the radiation energy transport hi the micro/nano-structured WGM systems. The EM field and the radiation energy distributions in the WGM resonator are obtained and compared between the on-resonance and off-resonance cases. A very brilliant ring with strong EM field and high radiation intensity is found inward the peripheral surface of the microdisk under the first-order resonance. While under the second-order resonance, there are two bright rings; and the outer ring inward the peripheral surface is thin and weaker than the internal ring. The microdisk size affects significantly the resonant frequencies and their intervals. The gap also has a slight effect on the resonant frequencies. The effect of waveguide width on the resonant frequencies is negligible. However, the gap as well as the waveguide width does obviously influence the qualify factor and the finesse of the resonant modes.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsM.S. Islam, A.K. Dutta
Pages593-602
Number of pages10
Volume5593
DOIs
StatePublished - 2004
Externally publishedYes
EventNanosensing Materials and Devices - Philadelphia, PA, United States
Duration: Oct 25 2004Oct 28 2004

Other

OtherNanosensing Materials and Devices
CountryUnited States
CityPhiladelphia, PA
Period10/25/0410/28/04

Fingerprint

Whispering gallery modes
whispering gallery modes
Resonators
Waveguides
resonators
waveguides
Electromagnetic fields
resonant frequencies
Natural frequencies
electromagnetic fields
rings
Radiation
Maxwell equations
radiation
Maxwell equation
radiant flux density
finite element method
energy distribution
intervals
Finite element method

Keywords

  • Finite element method
  • Frequency shift
  • Microcavity
  • Miniature sensor
  • Nanoscale detection
  • Near-field optics
  • Optical resonance
  • Simulation
  • Waveguide
  • Whispering-gallery mode

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Quan, H., Guo, Z., & Pau, S. K. H. (2004). Parametric studies of whispering-gallery mode resonators. In M. S. Islam, & A. K. Dutta (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5593, pp. 593-602). [97] https://doi.org/10.1117/12.571313

Parametric studies of whispering-gallery mode resonators. / Quan, Haiyong; Guo, Zhixiong; Pau, Stanley K H.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M.S. Islam; A.K. Dutta. Vol. 5593 2004. p. 593-602 97.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Quan, H, Guo, Z & Pau, SKH 2004, Parametric studies of whispering-gallery mode resonators. in MS Islam & AK Dutta (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5593, 97, pp. 593-602, Nanosensing Materials and Devices, Philadelphia, PA, United States, 10/25/04. https://doi.org/10.1117/12.571313
Quan H, Guo Z, Pau SKH. Parametric studies of whispering-gallery mode resonators. In Islam MS, Dutta AK, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5593. 2004. p. 593-602. 97 https://doi.org/10.1117/12.571313
Quan, Haiyong ; Guo, Zhixiong ; Pau, Stanley K H. / Parametric studies of whispering-gallery mode resonators. Proceedings of SPIE - The International Society for Optical Engineering. editor / M.S. Islam ; A.K. Dutta. Vol. 5593 2004. pp. 593-602
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