45 citations · 133 across the 7 of their papers we have counts for
7 papers
GaAs droplet quantum dots with nanometer-thin capping layer for plasmonic applications
Suk In Park, Oliver Joe Trojak, Eunhye Lee +6
We report on the growth and optical characterisation of droplet GaAs quantum dots with extremely-thin (11 nm) capping layers. To achieve such result, an internal thermal heating st…
Excited exciton and biexciton localised states in a single quantum ring
H. D. Kim, K. Kyhm, R. A. Taylor +6
We observe excited exciton and biexciton states of localised excitons in an anisotropic quantum ring, where large polarisation asymmetry supports the presence of a crescent-like lo…
Fabrication and tuning of plasmonic optical nanoantennas around droplet epitaxy quantum dots by cathodoluminescence
Gilles Nogues, Quentin Merotto, Guillaume BACHELIER +2
We use cathodoluminescence to locate droplet epitaxy quantum dots with a precision nm before fabricating nanoantennas in their vicinity by electron-beam lithography. Cat…
Decay dynamics and exciton localization in large GaAs quantum dots grown by droplet epitaxy
Petru Tighineanu, Raphaël Daveau, Eun Hye Lee +3
We investigate the optical emission and decay dynamics of excitons confined in large strain-free GaAs quantum dots grown by droplet epitaxy. From time-resolved measurements combine…
Asymmetry of localised states in a single quantum ring: polarization dependence of excitons and biexcitons
H. D. Kim, K. Kyhm, R. A. Taylor +4
We performed spectroscopic studies of a single GaAs quantum ring with an anisotropy in the rim height. The presence of an asymmetric localised state was suggested by the adiabatic…
Directional terahertz emission from diffusion-engineered InAs structures
Jong-Hyuk Yim, Hoonil Jeong, Jin-Dong Song +1
We have designed and fabricated a new type of terahertz (THz) emitter that radiates THz waves along the surface-normal direction because of the lateral distributions of the transie…
Nexus between directionality of THz waves and structural parameters in groove-patterned InAs
Jong-Hyuk Yim, Kyunggu Min, Hoonil Jeong +2
We have performed terahertz (THz)-time domain spectroscopy in various geometries, for characterizing the directivity of THz waves emitted from groove-patterned InAs structures. Fir…