2020
DOI: 10.1002/adom.202001403
|View full text |Cite
|
Sign up to set email alerts
|

Achromatic Dielectric Metasurface with Linear Phase Gradient in the Terahertz Domain

Abstract: many broadband scenarios. Taking the commonly used beam splitter [23,24] as an example, the reported terahertz circularpolarization beam splitter, [25] all dielectric splitter with variable split ratio, [26] terahertz beam splitter based on I-shape metasurface [27] and optically controlled dynamic splitter, [28] though work in broadband, produce significantly different steering angles in different frequencies resulting from chromatic aberration. Luckily, researches on achromatic metasurfaces in visible and inf… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
16
0

Year Published

2021
2021
2024
2024

Publication Types

Select...
6
1
1

Relationship

1
7

Authors

Journals

citations
Cited by 34 publications
(16 citation statements)
references
References 39 publications
0
16
0
Order By: Relevance
“…Besides beam steering and frequency shifting, the LCE metasurface grating can be developed as novel active beam splitter as pointed in our previous researches 36, 37 . We placed two C-ring gratings mentioned above on the same LCE substrate, and made the phase gradients of the two gratings mirror-symmetrical.…”
Section: Resultsmentioning
confidence: 97%
See 1 more Smart Citation
“…Besides beam steering and frequency shifting, the LCE metasurface grating can be developed as novel active beam splitter as pointed in our previous researches 36, 37 . We placed two C-ring gratings mentioned above on the same LCE substrate, and made the phase gradients of the two gratings mirror-symmetrical.…”
Section: Resultsmentioning
confidence: 97%
“…4e. As discussed by M. Wei 36 and R. Jia 37 , the splitting ratio can be easily controlled by translating the incident beam thus re-dividing the area on each grating. More importantly, the output angles of the two split beams can be manipulated by adding linefocused infrared pump on the seam.…”
Section: Resultsmentioning
confidence: 99%
“…The possible optimization method is utilizing all‐dielectric materials to form a photonic crystal slab 61–63 . It works due to its features in reducing the dissipative loss and strong heating in the metals 64–66 . However, when compared with metal metamaterials, all‐dielectric devices suffer from the poor affinity of immobilizing some molecules, which is unfavorable for the surface functionalization in biomolecule sensing.…”
Section: Introductionmentioning
confidence: 99%
“…[13][14][15][16][17] As a type of two-dimensional metamaterial composed of planar nanostructures on a subwavelength scale, the metasurface has broad prospects for use in the miniaturization, integration, and diversification of optical devices. Metasurfaces have been used widely in the design of various functional optical devices, including optical focusing and deflection elements [18][19][20][21] and polarization conversion and modulation devices, [22][23][24] and in the generation of micro/nanolaser sources. [25][26][27] Through adjustment of their geometrical parameters and structural arrangements, metasurfaces are also capable of producing an effective refractive index and dispersion, which makes them promising candidate materials for the design of dispersion-tailored optical devices.…”
Section: Introductionmentioning
confidence: 99%