|
Jinhui Shi 1, 2*, Ke Wang 1, and Han Zhang 1
1 SZU-NUS Collaborative Innovation Centre for Optoelectronic Science & Technology, and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China
2 Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Science, Harbin Engineering University, Harbin 150001, China
*2 Email: shijinhui@hrbeu.edu.cn
 View Full Text: PDF
Abstract: The field of metamaterials has been developing rapidly in recent years. Chiral metamaterials and metasurfaces, as promising candidates, hold great advantages and flexibilities to manipulate the polarization state of light. In this talk, we will review THz metamaterial work in our group. We will recall experimental results of manipulating polarization properties using chiral metamaterials in the microwave range. In addition, we review an optically controlled terahertz (THz) switch to tune the state of polarization based on a bilayered chiral metamaterials. The chiral metamaterial consists of an array of perforated slits with incorporated photoactive silicon, which allows us to control dynamically cross-polarization transmission. The switch state can be efficiently controlled by external optical stimuli. The realization of cross-polarization THz switch in the chiral metamaterial has simple structure design and easy fabrication and therefore the proposed chiral metamaterial will be a promising candidate for polarization control devices.
Keywords: THz metamaterial, Metasurface, Photoconductivity, Chirality, Switching
Received: 2015-8-18
Published: 2016-3-30
Cite this article:
Jinhui Shi, Ke Wang, and Han Zhang. Manipulating polarization and light propagation using THz metamaterials[J]. International Journal of Terahertz Science and Technology, 2016, Vol.9, No.1: 37-44. DOI:10.11906/TST.037-044.2016.03.04
URL: http://www.tstnetwork.org/10.11906/TST.037-044.2016.03.04
|
