title: Optimized light-matter interaction and defect hole placement in photonic crystal cavity sensors.
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.
authors: Interdisciplinary Graduate Program in Materials Science, Vanderbilt University, Nashville, Tennessee 37235, USA.
authors: Christopher
authors: C
authors: Kang
authors: Sharon M
authors: SM
authors: Weiss
authors: Yurii A
authors: YA
authors: Vlasov
authors: Solomon
authors: S
authors: Assefa