Hostname: page-component-8448b6f56d-mp689 Total loading time: 0 Render date: 2024-04-19T23:55:16.475Z Has data issue: false hasContentIssue false
  • English
  • Français

Photodiffractive Characterization of Growth-Defects in GaAs

Published online by Cambridge University Press:  26 February 2011

K. Jarasiunas ,
M. Sudzius ,
A. Kaniava  and
J. Vaitkus
K. Jarasiunas
Affiliation:
Institute of Material Science and Applied Research, Vilnius University, Sauletekio ave 9, bld.3, 2054 Vilnius, Lithuania
M. Sudzius
Affiliation:
Institute of Material Science and Applied Research, Vilnius University, Sauletekio ave 9, bld.3, 2054 Vilnius, Lithuania
A. Kaniava
Affiliation:
Institute of Material Science and Applied Research, Vilnius University, Sauletekio ave 9, bld.3, 2054 Vilnius, Lithuania
J. Vaitkus
Affiliation:
Institute of Material Science and Applied Research, Vilnius University, Sauletekio ave 9, bld.3, 2054 Vilnius, Lithuania
Get access

Abstract

The transient grating technique has been developed over the years and several reviews have been written concerning the subject [1,2]. The present paper will focus on its advantages for studies of main native defect in semiconducting GaAs crystals, namely, of EL2, which plays a crucial role in semi-insulating properties and optical absorption below band-gap, photorefractivity, metastability, etc. We will consider the role of EL2 in optical nonlinearities and its contribution to carrier transport in subnanosecond time domain. Nonlinear character of TG technique allows to get deeper insight into spatial distribution of growth defects (EL2 and dislocations) in the wafers and perform their nondestructive monitoring. Different experimental techniques, as DFWM in nano- and picosecond time domain, light selfdiffraction, and set of differently grown GaAs crystals enabled us to show applicability of this technique for basic research and nondestructive determination of parameters, defect distribution, reveal fast transients of optical nonlinearities. The photorefractive nonlinearity at 300K is shown being dependent on dislocation density due to local strain fields around charged dislocations. Moreover, transient quenching of EL2 by short laser pulses and enhancement of low-temperature photorefractive nonlinearity is demonstrated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 378: Symposium B – Defect and Impurity-Engineered Semiconductors and Devices , 1995 , 59
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Eichler, H., Gunter, P., Pohl, D., Light Induced Dynamic Gratings (Springer Verlag, Berlin-Heidelberg, 1986).Google Scholar
2. Jain, R.K., Klein, M.B., in Optical Phase Conjugation, (ed. Fisher, R.A., N.Y. Acad.Press, 1983), p.307.Google Scholar
3. Jarasiunas, K., Vaitkus, J., Delaye, P., and Roosen, G., Optics Lett. 19, 1946 (1994).Google Scholar
4. Smirl, A.L., Valley, G.C., Bohnert, K.M., Bogges, T.F., IEEE J.Quant.Electr. QE- 24, 289 (1988).Google Scholar
5. Schroeder, W.A., Stark, T.S., Dawson, M.D., Boggess, T.F., Smirl, A.L., and Valley, G.C., Optics Lett. 16, 159 (1991).Google Scholar
6. Delaye, Ph., Bastiene, L., Jarasiunas, K., and Roosen, G., SPIE, 2097, 474–482 (1993).Google Scholar
7. Klein, M.B., Optics Letters 9, 350 (1984).Google Scholar
8. Vaitkus, J., Gaubas, E., Jarasiunas, K., and Petrauskas, M., Semicond.Sci.Technol. 7, A131 (1992).Google Scholar
9. Bylsma, R.B., Olson, D.H., and Glass, A.M., Appl. Phys. Lett. 52 (13), 1083 (1988).Google Scholar
10. Miyazawa, S., Progr. Crystal Growth and Charact. 23, 23–71 (1991)Google Scholar
11. Jarasiunas, K., Development and Application of Nondestructive Techniques for Control of Semiconducting Wafers, Structures, and Technological Processes. Report, Vilnius u-ty, 1994.Google Scholar
12. Fabre, J.C., Jonathan, J.M.C., and Roosen, G., Optics Commun. 65, 257 (1988).Google Scholar
13. Jarasiunas, K., Delaye, P., and Roosen, G., Phys. Stat. Sol. (b) 175, 445 (1993).Google Scholar
14. Hutson, A.R. and Walker, L.R., J. Appl. Phys. 50, 6247 (1979).Google Scholar
15. Vincent, G., Bois, D., Chantre, A., J. Appl. Phys. 53, 3643 (1982).Google Scholar
16. Nolte, D.D., Olson, D,H,and Glass, A.M., Phys. Rev. B 40, 10650 (1989).Google Scholar
17. Delaye, P. and Sugg, B., Phys. Rev. B 50, 16973 (1994).Google Scholar
18 Kiliulis, R., Rinkevicius, V., Storasta, J., and Vaitkus, J., Phys. Stat. Sol. (a), 127, 415 (1991).Google Scholar