Formation of laterally ordered quantum dot molecules by in situ nanosecond laser interference
Formation of laterally ordered quantum dot molecules by in situ nanosecond laser interference
复制标题
原位纳秒激光干涉形成横向有序量子点分子
DOI:
10.1063/5.0009847
复制
发表时间:
2020-05
影响因子:
4
通讯作者:
Mark Hopkinson
中科院分区:
文献类型:
--
作者:
Yunran Wang;Im Sik Han;Chaoyuan Jin;Mark Hopkinson
We demonstrate the growth and surface characterization of laterally ordered arrays of InAs quantum dot molecules (QDMs) on GaAs (100) substrates produced by a combination of in situ interferometric nanopatterning and molecular beam epitaxy growth. Four-beam ultraviolet laser interference is applied during the growth process resulting in the formation of quasi two-dimensional islands due to localized surface diffusion. With further InAs deposition, the edges of the islands are observed to act as preferential sites for the nucleation of InAs quantum dots. Well-ordered square arrays of lateral QDMs with a period of 300 nm and site occupancy ranging from single dot up to hexa-molecules are obtained by varying the InAs coverage from 1.55 ML to 1.75 ML.
登录
查看更多内容
影响因子:
4
作者:
Lee, J. H.;Wang, Zh. M.;Salamo, G. J.
通讯作者:
Salamo, G. J.
影响因子:
2.7
作者:
F. Arciprete;E. Placidi;R. Magri;D. Del Gaudio;F. Patella
通讯作者:
F. Arciprete;E. Placidi;R. Magri;D. Del Gaudio;F. Patella
影响因子:
56.9
作者:
Stinaff, EA;Scheibner, M;Gammon, D
通讯作者:
Gammon, D
影响因子:
4
作者:
Bracker, A. S.;Scheibner, M.;Gammon, D.
通讯作者:
Gammon, D.
影响因子:
4
作者:
Placidi, E;Arciprete, F;Balzarotti, A
通讯作者:
Balzarotti, A