Anisotropic and tunable optical conductivity of a two-dimensional semi-Dirac system in the presence of elliptically polarized radiation

doi:10.1103/PhysRevB.105.115423

	Anisotropic and tunable optical conductivity of a two-dimensional semi-Dirac system in the presence of elliptically polarized radiation
	Zhang, H. Y.1,2; Xiao, Y. M.1,2; N. Li, Q.1,2; Ding, L.1,2; Van Duppen, B.5; Xu, W.1,2,3,4; Peeters, F. M.1,2,5
刊名	PHYSICAL REVIEW B
	2022-03-22
卷号	105
ISSN号	2469-9950
DOI	10.1103/PhysRevB.105.115423
通讯作者	Xiao, Y. M.(yiming.xiao@ynu.edu.cn)
英文摘要	We investigate the effect of ellipticity ratio of the polarized radiation field on optoelectronic properties of a two-dimensional (2D) semi-Dirac (SD) system. The optical conductivity is calculated within the energy balance equation approach derived from the semiclassical Boltzmann equation. We find that there exists the anisotropic optical absorption induced via both the intra-and interband electronic transition channels in the perpendicular xx and yy directions. Furthermore, we examine the effects of the ellipticity ratio, the temperature, the carrier density, and the band-gap parameter on the optical conductivity of the 2D SD system placed in transverse and vertical directions, respectively. It is shown that the ellipticity ratio, temperature, carrier density, and band-gap parameter can play the important roles in tuning the strength, peak position, and shape of the optical conductivity spectrum. The results obtained from this study indicate that the 2D SD system can be a promising anisotropic and tunable optical and optoelectronic material for applications in innovative 2D optical and optoelectronic devices, which are active in the infrared and terahertz bandwidths.
资助项目	National Natural Science foundation of China (NSFC)[12004331] ; National Natural Science foundation of China (NSFC)[U1930116] ; National Natural Science foundation of China (NSFC)[U1832153] ; National Natural Science foundation of China (NSFC)[U206720039] ; National Natural Science foundation of China (NSFC)[11847054] ; Shenzhen Science and Technology Program[KQTD20190929173954826] ; Yunnan Fundamental Research Projects[2019FD134] ; Research Foundation Flanders (FWO-V1)
WOS关键词	RESISTANCE ; SEMIMETAL ; GRAPHENE
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000802810700002
资助机构	National Natural Science foundation of China (NSFC) ; Shenzhen Science and Technology Program ; Yunnan Fundamental Research Projects ; Research Foundation Flanders (FWO-V1)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131109]
专题	中国科学院合肥物质科学研究院
通讯作者	Xiao, Y. M.
作者单位	1.Yunnan Univ, Yunnan Key Lab Quantum Informat, Kunming 650091, Yunnan, Peoples R China 2.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China 3.Micro Opt Instruments Inc, Shenzhen 518118, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 5.Univ Antwerp, Dept Phys, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
推荐引用方式 GB/T 7714	Zhang, H. Y.,Xiao, Y. M.,N. Li, Q.,et al. Anisotropic and tunable optical conductivity of a two-dimensional semi-Dirac system in the presence of elliptically polarized radiation[J]. PHYSICAL REVIEW B,2022,105.
APA	Zhang, H. Y..,Xiao, Y. M..,N. Li, Q..,Ding, L..,Van Duppen, B..,...&Peeters, F. M..(2022).Anisotropic and tunable optical conductivity of a two-dimensional semi-Dirac system in the presence of elliptically polarized radiation.PHYSICAL REVIEW B,105.
MLA	Zhang, H. Y.,et al."Anisotropic and tunable optical conductivity of a two-dimensional semi-Dirac system in the presence of elliptically polarized radiation".PHYSICAL REVIEW B 105(2022).