26 near-field optical spectroscopy of single quantum constituents

Research output: Contribution to journalArticle

Abstract

The remarkable progress in spatial resolution of near-field scanning optical microscopy offers the possibility of unique interactions between light and matter at the nanoscale. In this chapter, we describe the development of a high-resolution near-field scanning optical microscope with a carefully designed aperture probe and near-field imaging spectroscopy of quantum confined systems. Thanks to a spatial resolution as high as 10–30 nm, we successfully visualize spatial profiles of local density of states and wavefunctions of electrons (excitons) confined in semiconductor quantum dots. Fundamental aspects of localized and delocalized electrons in interface and alloy disorder systems are also clarified through spatial and energy-resolved spectroscopy.

LanguageEnglish
Pages351-372
Number of pages22
JournalNanoScience and Technology
Publication statusPublished - 2018 Jan 1

Fingerprint

near fields
Spectroscopy
Near field scanning optical microscopy
Electrons
Wave functions
spatial resolution
Excitons
spectroscopy
Semiconductor quantum dots
Microscopes
scanning
optical microscopes
Scanning
Imaging techniques
electrons
apertures
quantum dots
excitons
disorders
microscopy

Keywords

  • Alloy disorder
  • Light
  • Localized state
  • Matter interaction
  • Quantum dot
  • Wavefunction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

26 near-field optical spectroscopy of single quantum constituents. / Saiki, Toshiharu.

In: NanoScience and Technology, 01.01.2018, p. 351-372.

Research output: Contribution to journalArticle

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