DETECTION OF BLOCH OSCILLATIONS IN A SEMICONDUCTOR SUPERLATTICE BY TIME-RESOLVED TERAHERTZ SPECTROSCOPY AND DEGENERATE 4-WAVE-MIXING

Authors
WASCHKE C LEISCHING P BOLIVAR PH SCHWEDLER R BRUGGEMANN F ROSKOS HG LEO K KURZ H KOHLER K
Citation
C. Waschke et al., DETECTION OF BLOCH OSCILLATIONS IN A SEMICONDUCTOR SUPERLATTICE BY TIME-RESOLVED TERAHERTZ SPECTROSCOPY AND DEGENERATE 4-WAVE-MIXING, Solid-state electronics, 37(4-6), 1994, pp. 1321-1326
Citations number
21
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied","Physics, Condensed Matter
Journal title
Solid-state electronics → ACNP
ISSN journal
00381101
Volume
37
Issue
4-6
Year of publication
1994
Pages
1321 - 1326
Database
ISI
SICI code
0038-1101(1994)37:4-6<1321:DOBOIA>2.0.ZU;2-A
Abstract
We have studied the spatial dynamics of coherently excited wave packet s of charge carriers in a semiconductor superlattice structure by both time-resolved THz spectroscopy and degenerate four-wave mixing. In th e Wannier-Stark bias regime, we observe electron Bloch oscillations wi th a frequency that depends linearly on the electric bias field and ca n be tuned between a few hundred GHz and 5 THz.