Spectroscopy of intraband optical transitions in anisotropic semiconductor nanocrystals

Vadim K Turkov, Anvar S. Baimuratov, Ivan D. Rukhlenko, Alexander V Baranov, Anatoly V Fedorov

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Abstract

We propose a new type of optical spectroscopy of anisotropic semiconductor nanocrystals, which is based on the welldeveloped stationary pump-probe technique, where the pump and probe fields are absorbed upon, respectively, interband and intraband transitions of the nanocrystals' electronic subsystem. We develop a general theory of intraband absorption based on the density matrix formalism. This theory can be applied to study degenerate eigenstates of electrons in semiconductor nanocrystals of different shapes and dimentions. We demonstrate that the angular dependence of intraband absorption by nonspherical nanocrystals enables investigating their shape and orientation, as well as the symmetry of quantum states excited by the probe field and selection rules of electronic transitions.

Original languageEnglish
Title of host publicationNanophotonic Materials X
EditorsStefano Cabrini, Gilles Lérondel, Adam M. Schwartzberg, Taleb Mokari
PublisherSPIE
Number of pages9
Volume8807
ISBN (Print)9780819496577
DOIs
Publication statusPublished - 2013
EventNanophotonic Materials X 2013 - San Diego, United States of America
Duration: 28 Aug 201329 Aug 2013
http://spie.org/Publications/Proceedings/Volume/8807?SSO=1
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/8807.toc (Proceedings of SPIE)

Publication series

NameSPIE - International Society for Optical Engineering. Proceedings
PublisherS P I E - International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNanophotonic Materials X 2013
CountryUnited States of America
CitySan Diego
Period28/08/1329/08/13
OtherProceedings Volume 8807,
Nanophotonic Materials X; 880701 (2013);
doi: 10.1117/12.2034132
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States
Internet address

Keywords

  • Intraband absorption
  • Nanocrystals
  • Polarization spectroscopy
  • Pump-probe technique

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