scholarly journals Complete Terahertz Polarization Control With Broadened Bandwidth via Dielectric Metasurfaces

Author(s):  
Dacheng Wang ◽  
Song Sun ◽  
Zheng Feng ◽  
Wei Tan

Abstract We demonstrate terahertz dielectric metasurfaces with anisotropic multipoles within the framework of the generalized Huygens principle, in which the interference among these multipoles achieves giant phase shift with broadened bandwidth and high transmission coefficients. More importantly, owing to the anisotropic design, various phase delays between π/2 and 3π/2 are obtained, which convert the incident linearly polarized terahertz wave into right/left-handed circularly polarized light, elliptically polarized light and cross polarized light. Both simulation and experimental results verify complete terahertz polarization control with the ellipticity ranging from 1 to -1, which paves a way for polarization–related applications of terahertz meta-devices.

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Dacheng Wang ◽  
Song Sun ◽  
Zheng Feng ◽  
Wei Tan

AbstractWe demonstrate terahertz dielectric metasurfaces with anisotropic multipoles within the framework of the generalized Huygens principle, in which the interference among these multipoles achieves giant phase shift with broadened bandwidth and high transmission coefficients. More importantly, owing to the anisotropic design, various phase delays between π/2 and 3π/2 are obtained, which convert the incident linearly polarized terahertz wave into right/left-handed circularly polarized light, elliptically polarized light and cross-polarized light. Both simulation and experimental results verify complete terahertz polarization control with the ellipticity ranging from 1 to − 1, which paves a way for polarization-related applications of terahertz meta-devices.


2013 ◽  
Vol 300-301 ◽  
pp. 1267-1270
Author(s):  
Nan Yang Ye ◽  
Da Hai Han

In the experiment of the polarization of light, circularly polarized light can’t be got though all instruments are carefully adjusted and the polarized light we get is generally regarded as elliptically polarized light. We analyzed the process and find the light we get isn’t circularly polarized light or elliptically polarized light as usually thought and deduced the light intensity distribution function and it can fit the experimental results with small errors.


2001 ◽  
Vol 674 ◽  
Author(s):  
Mi Jeong Kim ◽  
Dong-Yu Kim

ABSTRACTFor chirooptic molecular memory system, induced chirality on an azobenzene-containing amorphous polymer film was investigated using circularly polarized Ar+ laser with various ellipticity. High intense CD spectrum proved that optical-induced chirality on the amorphous film. Additionally, elliptically polarized light induced much higher chirality than circularly polarized light.


1996 ◽  
Vol 13 (5) ◽  
pp. 1000 ◽  
Author(s):  
D. Robart ◽  
T. Amand ◽  
X. Marie ◽  
M. Brousseau ◽  
J. Barrau ◽  
...  

1998 ◽  
Vol 44 (1) ◽  
pp. 20-24 ◽  
Author(s):  
G Nienhuis ◽  
A. V Taichenachev ◽  
A. M Tumaikin ◽  
V. I Yudin

2009 ◽  
Vol 1 (4) ◽  
Author(s):  
Andrzej Witold DomaĹ„ski ◽  
Łukasz Michalik ◽  
Marcin Redek ◽  
Piotr Leszek Makowski

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