Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/616063
Title: Optimization of One Dimensional Photonic Crystal Elliptical-Hole Low-Index Mode Nanobeam Cavities for On-Chip Sensing
Authors: Lijun Huang;Jian Zhou;Fujun Sun;Zhongyuan Fu;Huiping Tian
subject: photonic crystal (PhC)|nanobeam cavity|photonic crystal waveguide|sensors|Integrated optics devices
Year: 2016
Publisher: IEEE
Abstract: We report the design of one dimensional photonic crystal nanobeam cavities with elliptical holes that is fully encapsulated in the water environment and can confine the light in the low index region. The proposed structure, based on the principle of gentle confinement of the electromagnetic field, is designed by tapering the width of the host photonic crystal waveguide away from the center of the cavity while keeping other parameters constant. With elliptical-hole low-index mode nanobeam cavities and tapered waveguide widths, through three dimensional finite-difference time-domain simulations, large band-gap and high reflectivity are achieved to confine the optical mode. Also, the electric field is confined in the elliptical holes, which helps to enhance the sensitivity. The simulation results demonstrate that we achieve the highest quality factor of 1.35 &#x00D7; 105 when 15 taper segments and 15 additional mirror segments are placed on both sides of the host waveguide. A sensitivity of 390 nm/RIU (refractive index unit) and mode volume of 2.23 (&#x03BB;<sub>res</sub>/n<sub>si</sub>)3 are achieved in the water environment, thus showing exceptionally good on-chip sensing properties with respect to high sensitivity, small footprints and masses.
URI: http://localhost/handle/Hannan/154965
http://localhost/handle/Hannan/616063
ISSN: 0733-8724
1558-2213
volume: 34
issue: 15
Appears in Collections:2016

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Title: Optimization of One Dimensional Photonic Crystal Elliptical-Hole Low-Index Mode Nanobeam Cavities for On-Chip Sensing
Authors: Lijun Huang;Jian Zhou;Fujun Sun;Zhongyuan Fu;Huiping Tian
subject: photonic crystal (PhC)|nanobeam cavity|photonic crystal waveguide|sensors|Integrated optics devices
Year: 2016
Publisher: IEEE
Abstract: We report the design of one dimensional photonic crystal nanobeam cavities with elliptical holes that is fully encapsulated in the water environment and can confine the light in the low index region. The proposed structure, based on the principle of gentle confinement of the electromagnetic field, is designed by tapering the width of the host photonic crystal waveguide away from the center of the cavity while keeping other parameters constant. With elliptical-hole low-index mode nanobeam cavities and tapered waveguide widths, through three dimensional finite-difference time-domain simulations, large band-gap and high reflectivity are achieved to confine the optical mode. Also, the electric field is confined in the elliptical holes, which helps to enhance the sensitivity. The simulation results demonstrate that we achieve the highest quality factor of 1.35 &#x00D7; 105 when 15 taper segments and 15 additional mirror segments are placed on both sides of the host waveguide. A sensitivity of 390 nm/RIU (refractive index unit) and mode volume of 2.23 (&#x03BB;<sub>res</sub>/n<sub>si</sub>)3 are achieved in the water environment, thus showing exceptionally good on-chip sensing properties with respect to high sensitivity, small footprints and masses.
URI: http://localhost/handle/Hannan/154965
http://localhost/handle/Hannan/616063
ISSN: 0733-8724
1558-2213
volume: 34
issue: 15
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7484262.pdf2.35 MBAdobe PDFThumbnail
Preview File
Title: Optimization of One Dimensional Photonic Crystal Elliptical-Hole Low-Index Mode Nanobeam Cavities for On-Chip Sensing
Authors: Lijun Huang;Jian Zhou;Fujun Sun;Zhongyuan Fu;Huiping Tian
subject: photonic crystal (PhC)|nanobeam cavity|photonic crystal waveguide|sensors|Integrated optics devices
Year: 2016
Publisher: IEEE
Abstract: We report the design of one dimensional photonic crystal nanobeam cavities with elliptical holes that is fully encapsulated in the water environment and can confine the light in the low index region. The proposed structure, based on the principle of gentle confinement of the electromagnetic field, is designed by tapering the width of the host photonic crystal waveguide away from the center of the cavity while keeping other parameters constant. With elliptical-hole low-index mode nanobeam cavities and tapered waveguide widths, through three dimensional finite-difference time-domain simulations, large band-gap and high reflectivity are achieved to confine the optical mode. Also, the electric field is confined in the elliptical holes, which helps to enhance the sensitivity. The simulation results demonstrate that we achieve the highest quality factor of 1.35 &#x00D7; 105 when 15 taper segments and 15 additional mirror segments are placed on both sides of the host waveguide. A sensitivity of 390 nm/RIU (refractive index unit) and mode volume of 2.23 (&#x03BB;<sub>res</sub>/n<sub>si</sub>)3 are achieved in the water environment, thus showing exceptionally good on-chip sensing properties with respect to high sensitivity, small footprints and masses.
URI: http://localhost/handle/Hannan/154965
http://localhost/handle/Hannan/616063
ISSN: 0733-8724
1558-2213
volume: 34
issue: 15
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7484262.pdf2.35 MBAdobe PDFThumbnail
Preview File