Electro‐optic sampling of photoconductive transients on a subpicosecond time scale is used to study hot‐carrier transport in GaAs. The results reported here are interpreted as direct time‐domain observations of nonequilibrium transport on a subpicosecond time scale and they clearly show both an overshoot and bias‐dependent delay at high excitation energy which are consistent with published Monte Carlo predictions.
REFERENCES
1.
R. O.
Grondin
, P.
Lugli
, D. K.
Ferry
, and H. L.
Grubin
, in Picosecond Optoelectronics, Proc. SPIE
439
, 18
(1983
).2.
D. K. Ferry, H. L. Grubin, and G. J. Iafrate, in Semiconductors Probed by Ultrafast Laser Spectroscopy, edited by R. R. Alfano (Academic, New York, 1984).
3.
4.
5.
G.
Mourou
, K.
Meyer
, J.
Whitaker
, M.
Pessot
, R.
Grondin
, and C.
Caruso
, in Picosecond Electronics and Optoelectronics II, Springer Series in Electronics and Photonics
24
, 40
(1987
).6.
M. C.
Nuss
, D. H.
Auston
, and F.
Capasso
, Phys. Rev. Lett.
58
, 2355
(1987
).7.
8.
9.
A.
Evan Iverson
, G. M.
Wysin
, D. L.
Smith
, and A.
Redondo
, Appl. Phys. Lett.
52
, 2148
(1988
).10.
G. M. Wysin, D. L. Smith, and A. Redondo (unpublished).
11.
C. V.
Shank
, R. L.
Fork
, B. I.
Greene
, F. K.
Reinhart
, and R. A.
Logan
, Appl. Phys. Lett.
34
, 104
(1981
).12.
K. Meyer, “Study of Subpicosecond Hot Electron Transport in GaAs Using Transient Photoconductivity and Transient Absorption Spectroscopy,” Ph.D thesis, Department of Physics and Astronomy, University of Rochester, New York, 1988.
13.
14.
J. M. Chwalek and D. R. Dykaar (unpublished).
15.
This content is only available via PDF.
© 1988 American Institute of Physics.
1988
American Institute of Physics
You do not currently have access to this content.
