Physics – Optics
Scientific paper
2010-12-08
Optics Express 18, 27748-27757 (2010)
Physics
Optics
6 pages, 4 figures
Scientific paper
10.1364/OE.18.027748
The development of innovative terahertz (THz) imaging systems has recently moved in the focus of scientific efforts due to the ability to screen substances through textiles or plastics. The invention of THz imaging systems with high spatial resolution is of increasing interest for applications in the realms of quality control, spectroscopy in dusty environment and security inspections. One of the main restrictions of current THz imaging systems is the low spatial resolution which is limited by a lack of THz lenses with strong focusing capabilities. Here we present the design, fabrication and the measurement of the optical properties of spectrally broadband metamaterial-based gradient index (GRIN) lenses that allow one to focus THz radiation to a spot diameter smaller than the wavelength. Due to the subwavelength thickness and the high focusing strength the presented GRIN lenses are an important step towards compact THz imaging systems with strongly improved spatial resolution.
Beigang Rene
Krolla Bernd
Neu Jens
Paul Oliver
Rahm Marco
No associations
LandOfFree
Metamaterial-based gradient index lens with strong focusing in the THz frequency range does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Metamaterial-based gradient index lens with strong focusing in the THz frequency range, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metamaterial-based gradient index lens with strong focusing in the THz frequency range will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-558536