PMID- 32225572
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200331
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 28
IP  - 7
DP  - 2020 Mar 30
TI  - Tunable bilateral unidirectional transmissions in a grating and photonic crystal 
      hybrid structure.
PG  - 9702-9712
LID - 10.1364/OE.390242 [doi]
AB  - In this work, bilateral unidirectional transmissions (UDTs) with opposite 
      transmission directions in one hybrid structure are realized using two different 
      resonant mechanisms. The hybrid structure consists of a dielectric grating and a 
      one-dimensional photonic crystal (PC) with a defect sandwiched at its center. One 
      resonant mode is the defect mode of the PC enabling one UDT for one transmission 
      direction. The other resonant mode is the grating guided mode resonance which 
      introduces UDT for the opposite direction. Numerical calculations demonstrate 
      that for each UDT, its transmittance difference, transmittance contrast ratio, 
      and isolation degree can reach 90%, 100%, and 20%, respectively. In addition, the 
      operation wavelength of each UDT as well as the wavelength interval between the 
      two UDTs with opposite transmission directions can be tuned easily by adjusting 
      structural parameters. This novel bilateral UDT creates potential for 
      applications in both free space optics and optical circuits.
FAU - Gao, Hua
AU  - Gao H
FAU - Wei, GuoGuo
AU  - Wei G
FAU - Herrmann, Eric
AU  - Herrmann E
FAU - Huang, Haochong
AU  - Huang H
FAU - Zheng, Zhiyuan
AU  - Zheng Z
FAU - Wang, Xi
AU  - Wang X
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
SB  - IM
EDAT- 2020/04/01 06:00
MHDA- 2020/04/01 06:01
CRDT- 2020/04/01 06:00
PHST- 2020/04/01 06:00 [entrez]
PHST- 2020/04/01 06:00 [pubmed]
PHST- 2020/04/01 06:01 [medline]
AID - 429280 [pii]
AID - 10.1364/OE.390242 [doi]
PST - ppublish
SO  - Opt Express. 2020 Mar 30;28(7):9702-9712. doi: 10.1364/OE.390242.