BROWSE

Related Researcher

Author

Kim, Je-Hyung
School of Natural Science
Research Interests
  • Solid-state quantum emitters, Cavity quantum electrodynamics, Quantum entanglement between multiple qubits, On-chip integrated solid-state quantum devices

ITEM VIEW & DOWNLOAD

Ultrafast single photon emitting quantum photonic structures based on a nano-obelisk

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Ultrafast single photon emitting quantum photonic structures based on a nano-obelisk
Author
Kim, Je-HyungKo, Young-HoGong, Su-HyunKo, Suk-MinCho, Yong-Hoon
Issue Date
201307
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.3, no., pp.2150 -
Abstract
A key issue in a single photon source is fast and efficient generation of a single photon flux with high light extraction efficiency. Significant progress toward high-efficiency single photon sources has been demonstrated by semiconductor quantum dots, especially using narrow bandgap materials. Meanwhile, there are many obstacles, which restrict the use of wide bandgap semiconductor quantum dots as practical single photon sources in ultraviolet-visible region, despite offering free space communication and miniaturized quantum information circuits. Here we demonstrate a single InGaN quantum dot embedded in an obelisk-shaped GaN nanostructure. The nano-obelisk plays an important role in eliminating dislocations, increasing light extraction, and minimizing a built-in electric field. Based on the nano-obelisks, we observed nonconventional narrow quantum dot emission and positive biexciton binding energy, which are signatures of negligible built-in field in single InGaN quantum dots. This results in efficient and ultrafast single photon generation in the violet color region.
URI
Go to Link
DOI
http://dx.doi.org/10.1038/srep02150
ISSN
2045-2322
Appears in Collections:
SNS_Journal Papers
Files in This Item:
000321322100001.pdfDownload

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU