Abstract
Radar cross sections at terahertz frequencies are measured on scale models of aircrafts. A time domain broadband THz system generates freely propagating THz pulses measured with sub-picosecond time resolution. The THz radiation is generated using fs laser pulses by optical rectification in a lithium niobate crystal with application of the tilted wave front method, resulting in high electric field THz pulses with a broad band spectrum from 100 GHz up to 4 THz. The corresponding wave lengths are two orders of magnitude smaller than normal radars and we therefore use scale models of size 5-10 cm in order to measure realistic radar cross sections. RCS polar and azimuthal angle plots of F-16 and F-35 are presented.
| Original language | English |
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| Title of host publication | proceedings SET-159 |
| Publisher | NATO |
| Publication date | 2010 |
| Publication status | Published - 2010 |
| Event | Sensors & Electronics Technology Panel Specialists’ Meeting : Terahertz and other electromagnetic wave techniques for defence and security - Vilnius, Lithuania Duration: 1 Jan 2010 → … Conference number: 159 |
Conference
| Conference | Sensors & Electronics Technology Panel Specialists’ Meeting : Terahertz and other electromagnetic wave techniques for defence and security |
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| Number | 159 |
| City | Vilnius, Lithuania |
| Period | 01/01/2010 → … |