45 citations · 173 across the 14 of their papers we have counts for
14 papers
Size distribution of islands according to 2D growth model with 2 kinds of diffusion atoms
R. Yamauchi, X. M. Lu, M. Koyama +3
We simulated the growth of 2D islands with 2 kinds of diffusion atoms using the kinetic Monte- Carlo (kMC) method. As a result, we found that the slow atoms tend to create nuclei a…
Realization of Carrier Tunneling from InAlAs Quantum Dots to AlAs
Masataka Koyama, Dai Suzuki, Xiangmeng Lu +2
With the aim of improving solar cell efficiency, a structure for realizing electron tunneling from In0.6Al0.4As quantum dots (QDs) through an Al0.4Ga0.6As barrier to AlAs has been…
Bidirectional photon extraction from an epitaxially grown semiconductor quantum dot sandwiched by single mode optical fibers
H. Sasakura, X. Liu, S. Odashima +3
Fiber-based bidirectional photon extraction from nanoscale emitters and photon antibunching behavior between two outputs of two single mode optical fibers are experimentally demons…
Decoherence during time evolution by Schroedinger equation
Shunichi Muto
A thought experiment is discussed to clarify the concept of decoherence. Superposition of states consisting of ground state of a single hydrogen atom and its excited state after a…
Size Distribution and Its Scaling Behavior of InAlAs/AlGaAs Quantum Dots Grown on GaAs by Molecular Beam Epitaxy
X. M. Lu, M. Koyama, Y. Izumi +3
We studied the size distribution and its scaling behavior of self-assembled InAlAs/AlGaAs quantum dots (QDs) grown on GaAs with the Stranski-Krastanov (SK) mode by molecular beam e…
Direct observation of correlation time of dynamic nuclear polarization in single quantum dots
R. Kaji, H. Sasakura, S. Adachi +1
The spin interaction between an electron and nuclei was investigated optically in a single self-assembled InAlAs quantum dot (QD). In spin dynamics, the correlation time of the cou…