Light-hole Exciton in Nanowire Quantum Dot

Abstract

Quantum dots inserted inside semiconductor nanowires are extremely promising candidates as building blocks for solid-state based quantum computation and communication. They provide very high crystalline and optical properties and offer a convenient geometry for electrical contacting. Having a complete determination and full control of their emission properties is one of the key goals of nanoscience researchers. Here we use strain as a tool to create in a single magnetic nanowire quantum dot a light-hole exciton, an optically active quasiparticle formed from a single electron bound to a single light hole. In this frame, we provide a general description of the mixing within the hole quadruplet induced by strain or confinement. A multi-instrumental combination of cathodoluminescence, polarisation-resolved Fourier imaging and magneto-optical spectroscopy, allow us to fully characterize the hole ground state, including its valence band mixing with heavy hole states.

References in corpus (12)

• Triggered single photons from a quantum dot
• Entangled Photon Pairs from Semiconductor Quantum Dots
• Review: Semiconductor Quantum Light Sources
• Spin relaxation and decoherence of holes in quantum dots
• Towards quantum dot arrays of entangled photon emitters
• Observation of extremely slow hole spin relaxation in self-assembled quantum dots
• Symmetric quantum dots as efficient sources of highly entangled photons
• Polarization properties of excitonic qu-bits in single self-assembled quantum dots
• Supercoupling between heavy-hole and light-hole states in self-assembled quantum dots
• Strain in crystalline core-shell nanowires
• Strain induced coherent dynamics of coupled carriers and Mn spins in a quantum dot
• Optical properties of single ZnTe nanowires grown at low temperature

Cited by in corpus (8)

• Bright single InAsP quantum dots at telecom wavelengths in position-controlled InP nanowires: the role of the photonic waveguide
• InAs quantum dot in a needlelike tapered InP nanowire: a telecom band single photon source monolithically grown on silicon
• Position-controlled Telecom Single Photon Emitters Operating at Elevated Temperatures
• Enhanced Photon Extraction from a Nanowire Quantum Dot Using a Bottom-Up Photonic Shell
• Nanowire growth and sublimation: CdTe quantum dots in ZnTe nanowires
• Light-hole states in a strained quantum dot: numerical calculation and phenomenological models
• Doughnut shaped emission from vertical organic nanowire coupled to thin plasmonic film
• Regulated dynamics with two-monolayer steps in vapor-solid-solid growth of nanowires