Anomalous optically generated THz beams from metal/GaAs interfaces

• DOI: 10.1063/1.112267
• Publication Date: 2002-07-26T13:39:01Z
• Authors: Y. Jin; X. F. Ma; G. A. Wagoner; M. Alexander; X.-C. Zhang
• Keywords: SIGNAL (programming language)

We report the measurement of optically generated THz radiation from over ten different metal/GaAs interfaces. observe an anomalous behavior in beams emitted these In contrast to at normal incidence where amplitude signal decreases with increasing metal film thickness, oblique we increased emission thickness until reaching a maximum near 80 Å.