24 citations · 79 across the 11 of their papers we have counts for
11 papers
Left-handedness without absorption in the four-level Y-type atomic medium
Shun-Cai Zhao, Zheng-Dong Liu, Qi-Xuan Wu
In this paper,three external fields interacting with the four-level Y-type atomic system described by the density-matrix approach is investigated .The results show that the left-ha…
2-D isotropic negative refractive index in a N-type four-level atomic system
Shun-Cai Zhao, Qi-Xuan Wu, Kun Ma
2-D(Two-dimensional) isotropic negative refractive index (NRI) is explicitly realized via the orthogonal signal and coupling standing-wave fields coupling the N-type four-level ato…
Effect of Spontaneously Generated Coherence and Detuning on 2D Atom Localization in Two Orthogonal Standing-Wave Fields
Shun-Cai Zhao, Qi-Xuan Wu, Ai-Ling Gong
Two-dimensional (2D) atom localization via the spontaneously generated coherence (SGC) and detunings associated with the probe and standing-wave driving fields in a three-level V-t…
Left-handedness with three zero-absorption windows tuned by the incoherent pumping field and inter-dot tunnelings in a GaAs/AlGaAs triple quantum dots system
Shun-Cai Zhao, Shuang-Ying Zhang, Qi-Xuan Wu +1
Left-handedness with three zero-absorption windows is achieved in a triple-quantum dot (TQD) system. With the typical parameters of a GaAs/AlGaAs heterostructure, the simultaneous…
Negative refraction without absorption via both coherent and incoherent fields in a four-level left-handed atomic system
Shun-Cai Zhao, Zheng-Dong Liu, Qi-Xuan Wu
This paper attempts a probe into negative refraction without absorption by means of an incoherent pump field and a strong coherent field coupling the dense four-level atomic system…
Zero absorption and large negative refractive index in a left-handed four-level atomic media
Shuncai Zhao, Zhengdong Liu, Qixuan Wu
In this paper,we have investigated three external fields interacting with the four-level atomic system described by the density-matrix approach.The atomic system exhibits left-hand…
Algebraic analysis of electromagnetic chirality-induced negative refractive index in a four-level atomic system
Shun-Cai Zhao, Qi-Xuan Wu, Ai-Ling Gong
This paper presents a algebraic analysis of electromagnetic chirality-induced negative refractive index in a four-level atomic medium. According to analyze mathematically its argum…
High quantum yields generated by a multi-band quantum dot photocell
Shun-Cai Zhao, Qi-Xuan Wu
We perform the quantum yields in a multi-band quantum dot (QD) photocell via doping an intermediate band (IB) between the conduction band (CB) and valence band (VB). Under two diff…
Dual peaks evoluting into single-peak for sub-wavelength 2-D atom localization in a V-type atomic system
Shun-Cai Zhao, Xin Li, Ping Yang
The atom localization of a V-type atomic system is discussed by the detunings associated with the probe and the two orthogonal standing-wave fields, and by the spontaneously genera…
Wider frequency domain for negative refraction index in a quantized composite right-left handed transmission line
Qi-Xuan Wu, Shun-Cai Zhao
The refraction index of the quantized lossy composite right-left handed transmission line (CRLH-TL) is deduced in the thermal coherence state. The results show that the negative re…
Negative refraction index of the quantum lossy left-handed transmission lines affected by the displaced squeezed Fock state and dissipation
Shun-Cai Zhao, Xiao-Jing Wei, Qi-Xuan Wu
Quantum lossy left-handed transmission lines (LHTLs) are central to the miniaturized application in microwave band. This work discusses the NRI of the quantized lossy LHTLs in the…