Nexus between directionality of terahertz waves and structural parameters in groove patterned InAs
Nexus between directionality of terahertz waves and structural parameters in groove patterned InAs
We have performed terahertz (THz)-time domain spectroscopy in various geometries, for characterizing the directivity of THz waves emitted from groove-patterned InAs structures. First, we have distinguished the THz emission mechanisms as a function of epilayer thickness. The carrier drift was predominant in thin sample group (10-70 nm) which the electronic …