Size‐independent zeroth order electric plasmonic cavity resonator

Abstract

increased, the lasing spectrum is shifted from short to long wavelength with SMSR (Side mode suppression ratio) larger than 20 dB. The tuning range is measured to be about 40 nm with a maximum current of 42 mA. CONCLUSIONA hybrid-integrated tunable source, which is composed of an R-SOA and a polymer double-ring-resonator followed by a loopback mirror is proposed. The wavelength-selective reflector is fabricated with polymer materials of high-index contrast between core and cladding to allow the ring radius close to 100 lm. The radii of two rings are different from each other, that is, 150 and 156 lm, respectively, to introduce a vernier effect for wide tuning range. The output power is measured to be about 0.75 mW at the driving current of 150 mA. The tuning range is measured to be about 40 nm with a maximum tuning current level of 42 mA. The SMSR is maintained to be larger than 20 dB during tuning. The output power and the SMSR are expected to be greatly improved if the coupling efficiency between the R-SOA and the wavelength-selective reflector is properly optimized and the length of the reflector is adjusted as short as possible through a careful mask design, allowing the tunable source to be used especially for a low-cost WDM-PON optical source.ABSTRACT: A size-independent rectangular resonator supporting a mode with a uniform electromagnetic field is presented. This resonator uses a 2D array of metallic wires emulating an effective medium with zero permittivity at the resonance frequency. The field expressions for the resonator are derived and simulation results are presented and discussed.The proposed size-independent zeroth order electric plasmonic cavity resonator is depicted in Figure 1. The resonator is comprised of nine dielectric (nonmagnetic) regions. The center

Imperfections for an equivalent surface impedance of a uniaxial wire medium

“…Using Equation (15) in Equation (13), the interaction constant with small imperfections in positioning of wires can be written as,…”

“…The directive radiation characteristics of different type of antennas embedded in wire medium have been discussed in [8][9][10][11]. Also, the electromagnetic properties of a waveguide and cavity resonator filled with wire medium are studied by Nefedov and Viitanen [12] and Couture et al [13] respectively. The shielding properties of a wire medium slab in the long wavelength are studied by Lovat et al [14].…”

Size-Independent Cylindrical Resonator Half-Filled With DNG Metamaterial and Excited by a Line Source

“…T HE concept of utilizing double-negative (DNG) metamaterial inclusions to render a resonator size-independent was introduced by Engheta [1]- [2] for a one-dimensional structure, to show that it is possible to build resonators that function independently of dimensions at those frequencies for which the metamaterial behaves as postulated. Three dimensional cavity resonators were investigated by Couture et al [3]- [4] and by Uslenghi [5]- [7].…”

Cylindrical resonator filled with four alternating sectors of DPS and DNG materials

“…The concept of utilizing DNG metamaterial inclusions to render a resonator size-independent was introduced by Engheta [1]- [2] for a one-dimensional structure, to show that it is possible to build resonators that functions independently of dimensions at those frequencies for which the metamaterial behaves as postulated. This concept was later extended to fully three dimensional cavity resonators by Couture et al [3]- [4] and by Uslenghi [5]- [7]. Recently, Daniele et al [8]- [11] studied in detail a cylindrical resonator sectorally filled with metamaterial; in particular, their analysis showed that phase compensation leading to size independence is possible only if the cylinder is half-filled with metamaterial.…”