Fast Detection of Infrared Laser Pulses on Planar Small Area GaAs/AlGaAs Heterojunction

• Authors: E. Širmulis , V. Kazlauskaitė , J. Gradauskas , A. Sužiedėlis , S. Ašmontas
• Languages of publication: EN

Abstracts

EN

We report the first experimental observation of fast photovoltage in small area GaAs/AlGaAs heterojunction planar detector induced by nanosecond CO_2 laser pulses. This device revealed itself as a sensitive detector of millimeter waves and as a fast IR sensor operating at room temperature. Taking into account fast response of the detector and close to linear voltage-power dependence, the results are interpreted by photoemission of hot carriers over the potential barrier of the heterojunction.

Keywords

EN

72.40.+w; 73.40.Kp

Discipline

• 73.40.Kp: III-V semiconductor-to-semiconductor contacts,p-njunctions, and heterojunctions
• 72.40.+w: Photoconduction and photovoltaic effects

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 3
• Pages: 851-854

Dates

published

2008-03

received

2007-08-26

Contributors

author

E. Širmulis

• Semiconductor Physics Institute, A. Goštauto 11, LT-01108 Vilnius, Lithuania

author

V. Kazlauskaitė

• Semiconductor Physics Institute, A. Goštauto 11, LT-01108 Vilnius, Lithuania

author

J. Gradauskas

• Semiconductor Physics Institute, A. Goštauto 11, LT-01108 Vilnius, Lithuania

author

A. Sužiedėlis

• Semiconductor Physics Institute, A. Goštauto 11, LT-01108 Vilnius, Lithuania

author

S. Ašmontas

• Semiconductor Physics Institute, A. Goštauto 11, LT-01108 Vilnius, Lithuania

References

• 1. A. Sužiedėlis, S. Ašmontas, J. Požėla, J. Kundrotas, E.Širmulis, J. Gradauskas, A. Koziv, V. Kazlauskaitė, T. Anbinderis, Acta Phys. Pol. A 113, 803 (2008)
• 2. S. Ašmontas. J. Gradauskas, D. Seliuta, E.Širmulis, A. Michailovas, E. Babrauskas, Mater. Sci. Forum 297-298, 295 (1999)
• 3. S. Ašmontas, E. Maldutis, E.Širmulis, Int. J. Optoelectron. 3, 263 (1988)
• 4. S. Ašmontas, E.Širmulis, Sov. Phys.-Collection 25, 62 (1985)
• 5. S. Ašmontas, J. Gradauskas, D. Seliuta, A.Šilėnas, E.Širmulis, in: Proc. Gallium Arsenide Application Symp. GAAS'96, Ed. C. Rumelhard, CNAM, Paris 1996, p. 3B1

Identifiers

DOI

10.12693/APhysPolA.113.851