中国物理B ›› 1994, Vol. 3 ›› Issue (6): 413-425.doi: 10.1088/1004-423X/3/6/003

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INTERSUBBAND OPTICAL ABSORPTION IN SEMICONDUCTOR SUPERLATTICES WITH COMPLEX BASES

史俊杰1, 戴宪起1, 潘少华2   

  1. (1)Department of Physics, Henan Normal University, Xinxiang 453002, China; (2)Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1993-10-18 出版日期:1994-06-20 发布日期:1994-06-20

INTERSUBBAND OPTICAL ABSORPTION IN SEMICONDUCTOR SUPERLATTICES WITH COMPLEX BASES

SHI JUN-JIE (史俊杰)a, DAI XIAN-QI (戴宪起)a, PAN SHAO-HUA (潘少华)b   

  1. a Department of Physics, Henan Normal University, Xinxiang 453002, China; b Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1993-10-18 Online:1994-06-20 Published:1994-06-20

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摘要： The third-order nonlinear intersubband optical absorption coefficient within the con-duction band of semiconductor superlattices with complex bases have been calculated using the density matrix formalism including intrasubband and intersubband relaxation. The sub-band dipole moments zij(k) and zii(k) are first studied in superlattices with complex bases including a general coupled-well basis and a general step-well basis. The results show that zij(k) and zii(k) are complicated functions of and strongly depends on the well parameters. The intersubband transition optical absorption coefficient α(ω,I) is further studied. The numerical illustrations are also given.

Abstract: The third-order nonlinear intersubband optical absorption coefficient within the con-duction band of semiconductor superlattices with complex bases have been calculated using the density matrix formalism including intrasubband and intersubband relaxation. The sub-band dipole moments zij(k) and zii(k) are first studied in superlattices with complex bases including a general coupled-well basis and a general step-well basis. The results show that zij(k) and zii(k) are complicated functions of and strongly depends on the well parameters. The intersubband transition optical absorption coefficient $\alpha$($\omega$, I) is further studied. The numerical illustrations are also given.

中图分类号:  (Multilayers; superlattices; photonic structures; metamaterials)

  • 78.67.Pt
78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 42.65.-k (Nonlinear optics)