Photoinduced indirect transitions and ultrafast direct current generation in unbiased superlattices

Cited 3 time in webofscience Cited 2 time in scopus
  • Hit : 165
  • Download : 0
We theoretically analyze the electron dynamics in a superlattice (SL) driven by a highly asymmetric electromagnetic pulse. We show that the time asymmetry of the pulse results in indirect population of higher minibands and leads to the appearance of a direct current. At low temperatures and low filling of the lowest miniband the current generated in the SL has an oscillating behavior as a function of the pulse strength with minima occurring when the wave vector transferred by the pulse matches an integer of half the reciprocal lattice constant. (c) 2006 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2006-08
Language
English
Article Type
Article
Citation

PHYSICS LETTERS A, v.356, no.4-5, pp.255 - 261

ISSN
0375-9601
DOI
10.1016/j.physleta.2006.03.061
URI
http://hdl.handle.net/10203/261923
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 3 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0