Irfan, Muhammad Yim, Jong-Hyuk Kim, Dongju Jang, Jae-Hyung Song, Jin-Dong Jho, Young-Dahl 2024-01-20T09:32:24Z 2024-01-20T09:32:24Z 2021-09-04 2014-07 1533-4880 https://pubs.kist.re.kr/handle/201004/126662 We have investigated THz radiation characteristics along different directions, either reflective or along lateral by using InAs-based heterostructures. Firstly, we demonstrate the phase shift with InAs layer thickness, revealing the change of dominant THz wave generation mechanism along both directions. Along the lateral direction, the time-domain signals in thin InAs epilayers showed an abrupt phase and amplitude change at certain time delays which suggest the interference between two rays at the photoconductive switch. This behavior was further substantiated by the multiple cavity modes in Fourier-transformed spectra and by the amplitude variation with excitation spot displacement. English AMER SCIENTIFIC PUBLISHERS TERAHERTZ EMISSION PHASE BEAMS Propagation Effects of THz Waves in InAs-Based Heterostructures Article 10.1166/jnn.2014.8299 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.7, pp.5228 - 5231 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 14 7 5228 5231 scie scopus 000332926400067 2-s2.0-84903847350 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article TERAHERTZ EMISSION PHASE BEAMS Terahertz InAs Phase Shift Diffusion Photo-Dember Effect Interference