Terahertz (THz) radiation, which is sandwiched between the infrared and microwave in the electromagnetic spectrum, has become more and more attractive due to its special properties [1]. Compared with the quick development of THz sources and detectors, THz functional devices are lagging behind, especially the devices for wave front modulation [2,3]. Metasurface, a kind of artificial materials, is enable effective manipulation of the amplitude, phase and polarization state of electromagnetic waves with subwavelength spatial resolution [4,5]. It has been used for ultrathin planar lenses, complex light field generation, spin orbital angular momentum coupling, and metasurface holograms. However, the function of this kind of metasurface based devices are fixed once they are fabricated, the spatial THz modulation which can dynamically modulate the wave front of THz radiation is demand in high resolution THz imaging and THz communication.

© 2019 IEEE

PDF Article
More Like This
Active Terahertz Wave Front Modulator Based on Metasurface

Yan Zhang
TTh3F.3 Terahertz Science and Applications (TSA) 2019

Active modulation of terahertz wave front

Yan Zhang, Xinke Wang, Jiasheng Ye, Shenfei Feng, and Wenfeng Sun
STu1F.2 CLEO: Science and Innovations (CLEO_SI) 2014

Terahertz Surface Wave Modulation in a Dielectric Slab Metasurface

N. Karl, H.-T. Chen, A. J. Taylor, I. Brener, A. Benz, J. Reno, R. Mendis, and D. M. Mittleman
STu1H.6 CLEO: Science and Innovations (CLEO_SI) 2015


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription