Optimized light-matter interaction and defect hole placement in photonic crystal cavity sensors

Christopher Kang, Sharon M. Weiss, Yurii A. Vlasov, Solomon Assefa

Research output: Contribution to journalArticlepeer-review

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 timedomain 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.

Original languageEnglish (US)
Pages (from-to)2850-2852
Number of pages3
JournalOptics Letters
Volume37
Issue number14
DOIs
StatePublished - Jul 15 2012
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Optimized light-matter interaction and defect hole placement in photonic crystal cavity sensors'. Together they form a unique fingerprint.

Cite this