title: Photonic crystal ring resonators: characteristics and applications.
abstract: We review the characteristics and applications of photonic crystal ring resonators (PCRRs), which can potentially provide a good alternative to the traditional micro ring resonators, as one of the key contributors to the emerging low-power nanophotonic technology. Applying numerical analysis together with the theory of mode superposition, the properties of PCRRs have been comprehensively investigated. We will report PCRR key characteristics, including diameter (D)-dependent loss, quality factor (Q), and free spectral range (FSR). No size-dependent loss was found in PCRRs, unlike the approximately 1/D dependent loss in micro-strip resonators, making PCRRs a promising candidate for ultra-compact ring resonators.
authors.affiliation: Department of Electrical Engineering, NanoFAB Center University of Texas at Arlington, Arlington, TX 76019-0072, USA.
authors.forename: Zexuan
authors.initials: Z
authors.lastname: Qiang
authors.forename: Richard A
authors.initials: RA
authors.lastname: Soref
authors.forename: Weidong
authors.initials: W
authors.lastname: Zhou