Research on Design of Tri-color Shift Device

Xu, Peng; Yuan, Xiaocong; Huang, Haixuan; Yang, Tao; Huang, Yué; Zhu, Tengfei; Tang, Shaotuo; Peng, Weiwen

doi:10.1186/s11671-016-1699-8

Cited by 12 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the research on sub-wavelength optical design and application accumulated by our research group [10][11][12][13][14][15][16][17][18][19], this paper proposes a method based on a simple periodic binary sub-wavelength structure [12,13] to design a terahertz broadband filter. A silicon-based terahertz wideband filter with a center frequency of 4.07 THz was designed.…”

Section: Introductionmentioning

confidence: 99%

Terahertz Wideband Filter Based on Sub-Wavelength Binary Simple Periodic Structure

et al. 2019

View full text Add to dashboard Cite

In this paper, a silicon-based terahertz wideband filter was designed using rigorous couple wave theory to achieve high diffraction efficiency and wideband filtering performance. The optimal parameters, such as filter period, duty ratio, and groove depth, are given. The design value and tolerance analysis were carried out to obtain the allowable deviation range of each structural parameter of the filter. The device was fabricated and tested for performance. The experimental results were consistent with the design results, proving the feasibility of the design method and can be applied in terahertz, communication, imaging, and other fields.

show abstract

Section: Introductionmentioning

confidence: 99%

Terahertz Wideband Filter Based on Sub-Wavelength Binary Simple Periodic Structure

et al. 2019

View full text Add to dashboard Cite

show abstract

“…In this work, based on our previous research on metasurface in micro-nano optics [37–41], we study the mechanism to combine the functionalities of two metasurfaces. A graphene cell is analysed to obtain the relationship between the reflection coefficient and its chemical potential along with its patch size.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional graphene metasurface to generate and steer vortex waves

et al. 2019

Self Cite

View full text Add to dashboard Cite

Graphene, an innovated 2D material with atomic thickness, is a very promising candidate and has drawn great attentions in various applications. Graphene metasurface enables dynamic control of various wavefronts, achieving distinguished functionalities. The flexibility of graphene metasurface makes it possible to implement multifunctional devices with ease. In this work, a novel design of multifunctional graphene metasurface, which can combine the functionalities of generating and steering vortex waves, has been proposed. The multifunctional graphene metasurface consists of a large array of graphene reflective unit cells. Each unit cell is controlled independently by its size and external static gate voltage. By scrutinizing the reflective property of the graphene cell, the graphene metasurface is designed to realize multi-functionalities. Simulation results show that vortex wave can be generated and steered. This work can establish a methodology to design multifunctional graphene metasurfaces, and the tunability of graphene opens the gate to the design and fabrication of reconfigurable graphene devices.

show abstract

“…At present, in terms of optical correlator research, excellent stable distortion invariant recognition performance and micro-integration are the goals and trends of optical correlator development. In this paper, a type of lensless coaxial integrated micro-optical correlator is proposed based on our previous research work in the field of micro-optics [11][12][13][14][15][16][17][18][19][20][21]. In this correlator, integration of the system components in the stereo structure make the system structure more compact and the recognition performance more stable.…”

Section: Introductionmentioning

confidence: 99%

Research on distortion invariant recognition based on lensless coaxial integrated micro-optic correlator

Xu¹,

Li²,

Yang³

et al. 2018

J. Opt.

Self Cite

View full text Add to dashboard Cite

In order to improve the recognition performance of the optical correlator for the distortion target, this article makes a complete theoretical analysis of the structure of the lensless integrated micro-optic correlator. Based on this theory, a simulation system for the distortion target of the correlator is established. At the same time, based on the system, an optimal trade-off synthetic discrimination function filter suitable for different distortions situations of the target to be identified was designed. The filter was loaded into the experimental light path of the correlator to verify the recognition effect of correlator on the distortion target. Simulation and experimental results illustrate that our lensless coaxial integrated micro-optical correlator can accurately recognize the targets with rotation distortion in the range of −50° to 50°and scaling distortion in the range of 58%–164%, which has a good distortion invariant recognition performance.

show abstract

Research on Design of Tri-color Shift Device

Cited by 12 publications

References 27 publications

Terahertz Wideband Filter Based on Sub-Wavelength Binary Simple Periodic Structure

Terahertz Wideband Filter Based on Sub-Wavelength Binary Simple Periodic Structure

Multifunctional graphene metasurface to generate and steer vortex waves

Research on distortion invariant recognition based on lensless coaxial integrated micro-optic correlator

Contact Info

Product

Resources

About