TY - JOUR
T1 - Light trapping and circularly polarization at a Dirac point in 2D plasma photonic crystals
AU - Li, Qian
AU - Hu, Lei
AU - Mao, Qiuping
AU - Jiang, Haiming
AU - Hu, Zhijia
AU - Xie, Kang
AU - Wei, Zhang
PY - 2018/3/1
Y1 - 2018/3/1
N2 - Light trapping at the Dirac point in 2D plasma photonic crystal has been obtained. The new localized mode, Dirac mode, is attributable to neither photonic bandgap nor total internal reflection. It exhibits a unique algebraic profile and possesses a high-Q factor resonator of about 105. The Dirac point could be modulated by tuning the filling factor, plasma frequency and plasma cyclotron frequency, respectively. When a magnetic field parallel to the wave vector is applied, Dirac modes for right circularly polarized and left circularly polarized waves could be obtained at different frequencies, and the Q factor could be tuned. This property will add more controllability and flexibility to the design and modulation of novel photonic devices. It is also valuable for the possibilities of Dirac modes in photonic crystal containing other kinds of metamaterials.
AB - Light trapping at the Dirac point in 2D plasma photonic crystal has been obtained. The new localized mode, Dirac mode, is attributable to neither photonic bandgap nor total internal reflection. It exhibits a unique algebraic profile and possesses a high-Q factor resonator of about 105. The Dirac point could be modulated by tuning the filling factor, plasma frequency and plasma cyclotron frequency, respectively. When a magnetic field parallel to the wave vector is applied, Dirac modes for right circularly polarized and left circularly polarized waves could be obtained at different frequencies, and the Q factor could be tuned. This property will add more controllability and flexibility to the design and modulation of novel photonic devices. It is also valuable for the possibilities of Dirac modes in photonic crystal containing other kinds of metamaterials.
KW - Circularly polarized waves
KW - Dirac mode
KW - Dirac point
KW - Magnetized plasma
KW - Photonic band structure
KW - Plasma photonic crystal
UR - http://www.scopus.com/inward/record.url?scp=85033484289&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0030401817309690?via%3Dihub
U2 - 10.1016/j.optcom.2017.10.049
DO - 10.1016/j.optcom.2017.10.049
M3 - Article
AN - SCOPUS:85033484289
SN - 0030-4018
VL - 410
SP - 431
EP - 437
JO - Optics Communications
JF - Optics Communications
ER -