PMID- 38426988
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240301
IS  - 1539-4794 (Electronic)
IS  - 0146-9592 (Linking)
VI  - 49
IP  - 5
DP  - 2024 Mar 1
TI  - Super-resolution terahertz imaging based on a meta-waveguide.
PG  - 1261-1264
LID - 10.1364/OL.513859 [doi]
AB  - A terahertz metamaterial waveguide (meta-waveguide) and a meta-waveguide-based 
      lens-free imaging system are presented. The meta-waveguide not only inherits the 
      low-loss transmission performance of a waveguide but also breaks through the 
      diffraction limit under the action of the metamaterial, achieving subwavelength 
      focusing. The focusing distance is far greater than the Rayleigh length, thus 
      enabling far-field scanning imaging. For verification, a metal ring-based 
      meta-waveguide was fabricated by 3D printing and metal cladding technology. Then, 
      a transmission scanning imaging system working at 0.1 THz was built. High quality 
      terahertz images with a resolution of 1/3 of the wavelength were obtained by 
      placing the imaging targets at the focus and performing two-dimensional scanning. 
      The focusing and transmission of terahertz wave in the meta-waveguide were 
      simulated and analyzed.
FAU - Li, Xinyu
AU  - Li X
FAU - Wang, Zhengxin
AU  - Wang Z
FAU - Jiang, Huiqi
AU  - Jiang H
FAU - Deng, Minghui
AU  - Deng M
FAU - Yin, Lesiqi
AU  - Yin L
FAU - Gong, Cheng
AU  - Gong C
FAU - Liu, Weiwei
AU  - Liu W
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Lett
JT  - Optics letters
JID - 7708433
SB  - IM
EDAT- 2024/03/01 12:44
MHDA- 2024/03/01 12:45
CRDT- 2024/03/01 10:43
PHST- 2024/03/01 12:45 [medline]
PHST- 2024/03/01 12:44 [pubmed]
PHST- 2024/03/01 10:43 [entrez]
AID - 547318 [pii]
AID - 10.1364/OL.513859 [doi]
PST - ppublish
SO  - Opt Lett. 2024 Mar 1;49(5):1261-1264. doi: 10.1364/OL.513859.