Infrared and Laser Engineering, Volume. 49, Issue 9, 20201039(2020)
From subwavelength grating to metagrating: principle, design and applications
Fig. 1. Dielectric grating at different scales. (a) Diffraction gratings; (b) Resonant (subwavelength) gratings; (c) Equivalent dielectric films
Fig. 4. Narrow-frequency sharp-angular transmission filter structures and the spectrum using cascaded metagratings[28]
Fig. 11. (a) Schematic of microfluidic chip with nanostructured and spot-wise functionalized sensor field[78]; (b) Schematic and (c) optical image of the disposable GMR biosensor chip, consisting of a subwavelength grating (a one-dimensional TiO2 grating structure) on a cyclic olefin copolymer substrate and a microfluidic module for handing the injection of fluid sample into the sensing area[80]
Fig. 12. Nanohole array subwavelength grating filters. (a) Transmission spectra of the hole array filters with different side length (a1) 10 μm, (a2) 5 μm, (a3) 2.4 μm, (a4) 1.2 μm[87]; (b) Color logo based on the nanohole array filter[88]; (c) oNanohle array filter integrated with CMOS imaging sensor[89] ; (d) Si subwavelength grating color filters[90]
Fig. 17. (a)Absorption spectra of subwavelength grating with nanodisk unit[123]; (b) Field intensity and energy loss of subwavelength grating with nanodisk unit[123]; (c) Absorption spectra of subwavelength grating absorber with multilayered metal-dielectric-metal resonant stacks [131]. (d) Subwavelength grating of Ti-SiO2-Al structure for solar energy absorption film[133]
Fig. 18. (a) Measured absorption spectra of fabricated Ag-SiO2-Ag cross structure of subwavelength grating with different parameters[135]; (b) Extinction spectra using crossed trapezoid array subwavelength metagraing[139]; (c) Absorption spectra of ring array structure[140]; (d) Absorption spectra of subwavelength grating of cone unit structure[145]
Get Citation
Copy Citation Text
Rui Chen, Xia Liu, Hong Wang, Weiyi Shi, Weinan Liu, Shaoji Jiang, Jianwen Dong. From subwavelength grating to metagrating: principle, design and applications[J]. Infrared and Laser Engineering, 2020, 49(9): 20201039
Category: Special issue-Metasurface empowered manipulation of wavefront
Received: Jun. 2, 2020
Accepted: --
Published Online: Jan. 4, 2021
The Author Email: Dong Jianwen (dongjwen@mail.sysu.edu.cn)