A Luneburg Lens for the Terahertz Region
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Infrared, Millimeter, and Terahertz Waves"
DOI: 10.1007/s10762-019-00635-8
Abstract: We experimentally demonstrate a two-dimensional Luneburg lens for the THz region using a waveguide-based artificial-dielectric medium. The substrate material of the lens is Teflon with the top and bottom surfaces coated with silver to form… read more here.
Keywords: terahertz region; lens terahertz; luneburg lens; region ... See more keywords
Spin Hall effect of transmitted light for graphene–silica aerogel photonic crystal in terahertz region
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126744
Abstract: Abstract Photonic spin Hall effect (SHE) holds great potential applications for the development of spin-based nanophotonic devices. Due to the weak spin–orbit interaction, it is highly desirable to tune and enhance the photonic SHE. However,… read more here.
Keywords: spin hall; terahertz region; graphene; spin ... See more keywords
Active optical modulator based on a metasurface in the terahertz region.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.007778
Abstract: The characteristics of the electromagnetically induced transparency (EIT) analog exposed under different illumination powers have been investigated theoretically and experimentally. The EIT analog is composed of a fixed aluminum structure fabricated on the silicon substrate.… read more here.
Keywords: metasurface terahertz; based metasurface; terahertz region; active optical ... See more keywords
Resonance-domain diffractive lens for the terahertz region.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.002384
Abstract: Diffractive optics has long served as the basis of spectroscopic measurements of materials. Operation in the resonance domain further allows these elements to achieve high efficiency and polarization control. An effective grating theory is a… read more here.
Keywords: resonance domain; terahertz region; optics; diffractive lens ... See more keywords
Graphene-based tunable Imbert-Fedorov shifts and orbital angular momentum sidebands for reflected vortex beams in the terahertz region.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.002823
Abstract: Upon reflection, a light beam embedded with m-order orbital angular momentum (OAM) will undergo the Imbert-Fedorov (IF) shift, which induces OAM sidebands. The energies of the neighboring {-m-1} and {-m+1} sideband modes of the reflected… read more here.
Keywords: orbital angular; terahertz region; imbert fedorov; angular momentum ... See more keywords