منابع مشابه
Bowtie plasmonic quantum cascade laser antenna.
We report a bowtie plasmonic quantum cascade laser antenna that can confine coherent mid-infrared radiation well below the diffraction limit. The antenna is fabricated on the facet of a mid-infrared quantum cascade laser and consists of a pair of gold fan-like segments, whose narrow ends are separated by a nanometric gap. Compared with a nano-rod antenna composed of a pair of nano-rods, the bow...
متن کاملQuantum cascade lasers with integrated plasmonic antenna-array collimators.
We demonstrated in simulations and experiments that by defining a properly designed two-dimensional metallic aperture-grating structure on the facet of quantum cascade lasers, a small beam divergence angle can be achieved in directions both perpendicular and parallel to the laser waveguide layers (denoted as theta perpendicular and theta parallel, respectively). Beam divergence angles as small ...
متن کاملQuantum-cascade laser integrated with a metal-dielectric-metal-based plasmonic antenna.
Optical nanoantennas are capable of enhancing the near-field intensity and confining optical energy within a small spot size. We report a novel metal-dielectric-metal coupled-nanorods antenna integrated on the facet of a quantum-cascade laser. Finite-difference time-domain simulations showed that, for dielectric thicknesses in the range from 10 to 30 nm, peak optical intensity at the top of the...
متن کاملIntegrated all-optical infrared switchable plasmonic quantum cascade laser.
We report a type of infrared switchable plasmonic quantum cascade laser, in which far field light in the midwave infrared (MWIR, 6.1 μm) is modulated by a near field interaction of light in the telecommunications wavelength (1.55 μm). To achieve this all-optical switch, we used cross-polarized bowtie antennas and a centrally located germanium nanoslab. The bowtie antenna squeezes the short wave...
متن کاملNano-opto-mechanically modulated plasmonic nanoantenna-integrated quantum cascade laser
We report mechanical frequency and amplitude modulation of a quantum cascade laser (QCL) integrated with a plasmonic antenna operating at ~6.1 μm. We have observed a shift in the lasing frequency by over 30 GHz and an intensity modulation of ~74% when an atomic force microscope (AFM) tip approaches the hot spot of a metal-dielectricmetal (MDM) bow-tie antenna integrated onto the facet of the la...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2007
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.2801551