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Optimized light–matter interaction and defect hole placement in photonic crystal cavity sensors |
Optics Letters, Vol. 37, Issue 14, pp. 2850-2852 (2012)
http://dx.doi.org/10.1364/OL.37.002850
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Abstract
Photonic crystal slab cavities were investigated for increased light–matter interaction based on selective placement of sublattice hole sized defect holes inside L3 cavities. A multiple-hole defect (MHD) consisting of three defect holes placed in the regions of highest cavity mode field intensity were demonstrated through finite-difference time-domain simulations and experiments to exhibit the strongest light–matter interaction without introducing significant scattering losses. Compared to an L3 cavity without defect holes, these strategically designed three-hole MHD cavities presented higher quality factor and more than double the resonance wavelength shift upon exposure to a thin oxide and two small chemical molecules.
© 2012 Optical Society of America
OCIS Codes
(130.6010) Integrated optics : Sensors
(230.5750) Optical devices : Resonators
(230.5298) Optical devices : Photonic crystals
ToC Category:
Optical Devices
History
Original Manuscript: February 29, 2012
Revised Manuscript: May 25, 2012
Manuscript Accepted: June 1, 2012
Published: July 10, 2012
Citation
Christopher Kang, Sharon M. Weiss, Yurii A. Vlasov, and Solomon Assefa, "Optimized light–matter interaction and defect hole placement in photonic crystal cavity sensors," Opt. Lett. 37, 2850-2852 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-14-2850
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