Demonstration of photon Bloch oscillations and Wannier-Stark ladders in dual-periodical multilayer structures based on porous silicon

被引：8
作者：
Octavio Estevez, J. [2 ]
Arriaga, Jesus [2 ]
Mendez-Blas, Antonio [2 ]
Reyes-Ayona, Edgar [2 ]
Escorcia, Jose [1 ]
Agarwal, Vivechana [1 ]
机构：
[1] UAEM, Ctr Invest Ingn & Ciencias Aplicadas, Cuernavaca 62210, Morelos, Mexico
[2] Univ Autonoma Puebla, Inst Fis, Puebla 72570, Mexico
来源：
NANOSCALE RESEARCH LETTERS | 2012年 / 7卷
关键词：
Photon Bloch oscillations; Wannier-Stark ladders; Dual-periodical multilayers; Porous silicon; Photonic crystals; OPTICAL-PROPERTIES; MICROCAVITIES; EMISSION; MIRRORS; MODES; FILMS;
D O I：
10.1186/1556-276X-7-413
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Theoretical demonstration and experimental evidence of photon Bloch oscillations and Wannier-Stark ladders (WSLs) in dual-periodical (DP) multilayers, based on porous silicon, are presented. An introduction of the linear gradient in refractive indices in DP structure, which is composed by stacking two different periodic substructures N times, resulted in the appearance of WSLs. Theoretical time-resolved reflection spectrum shows the photon Bloch oscillations with a period of 130 fs. Depending on the values of the structural parameters, one can observe the WSLs in the near infrared or visible region which may allow the generation of terahertz radiation with a potential applications in several fields like imaging.
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页数：7
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