Abstract

Transient-grating techniques are used to investigate the picosecond dynamics of photoexcited carriers in a range of n- and p-doped ZnSe thin-film layers grown by molecular-beam epitaxy. Two-photon absorption is employed experimentally to generate known excitation levels, comparable with those under laser action in II–VI diode structures. The analysis of the measured grating decays, incorporating photon recycling, reveals carrier lifetimes of the order of 300 ps and radiative recombination coefficients of the order of 10−8 cm3 s−1. The influence of photon-assisted plasma expansion at excitation levels above the threshold for stimulated emission is modeled and quantified.

© 1996 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Transient optical nonlinearities in CdS studied by laser-induced grating spectroscopy at room temperature

B. Kippelen, J. B. Grun, B. Hönerlage, and R. Levy
J. Opt. Soc. Am. B 8(11) 2363-2369 (1991)

Picosecond carrier lifetime and large optical nonlinearities in InGaAsP grown by He-plasma-assisted molecular beam epitaxy

L. Qian, S. D. Benjamin, P. W. E. Smith, B. J. Robinson, and D. A. Thompson
Opt. Lett. 22(2) 108-110 (1997)

Radiative recombination processes in wide-band-gap II–VI quantum wells: the interplay between excitons and free carriers

R. Cingolani, L. Calcagnile, G. Colí, R. Rinaldi, M. Lomoscolo, M. DiDio, A. Franciosi, L. Vanzetti, G. C. LaRocca, and D. Campi
J. Opt. Soc. Am. B 13(6) 1268-1277 (1996)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (20)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription