Coherent phenomena in a semiconductor quantum well system: effects of double dark states

We analyze the steady state and transient properties of the polarization and of the electronic population in a triple semiconductor quantum well structure with tunneling induced interference. We first derive the dark states of the system and show that this structure can lead to double dark states. Then, we show that under the dark state conditions the system can exhibit tunneling induced transparency, slow light, transient gain without inversion and coherent population trapping. The dynamics of the polarization and of the electronic population, as well as the total trapped electronic population in the system, are found to be depended on which dark state condition is satisfied.

[1]  Jin-yue Gao,et al.  Optical switching based on transparency in a semiconductor double-quantum well , 2000 .

[2]  Intersubband emission in double-well structures with quantum interference in absorption , 1997 .

[3]  M. Xiao,et al.  Transient properties of an electromagnetically induced transparency in three-level atoms. , 1995, Optics letters.

[4]  V. Milanovic,et al.  Second harmonic generation at the quantum-interference induced transparency in semiconductor quantum wells: the influence of permanent dipole moments , 2001 .

[5]  S. Harris,et al.  Light speed reduction to 17 metres per second in an ultracold atomic gas , 1999, Nature.

[6]  C. Sirtori,et al.  Laser-induced quantum coherence in a semiconductor quantum well. , 2000, Physical review letters.

[7]  J. Khurgin,et al.  Practical aspects of lasing without inversion in various media , 1996 .

[8]  Arthur C. Gossard,et al.  Tunneling induced transparency: Fano interference in intersubband transitions , 1997 .

[9]  Carlo Sirtori,et al.  Controlling the sign of quantum interference by tunnelling from quantum wells , 1997, Nature.

[10]  F. Carreño,et al.  Spontaneously generated coherence effects in a laser-driven four-level atomic system , 2005 .

[11]  Jinhui Wu,et al.  Dynamic control of coherent pulses via Fano-type interference in asymmetric double quantum wells , 2006 .

[12]  Rajeev J Ram,et al.  Semiconductor lasers without population inversion. , 1994, Optics letters.

[13]  Holger Schmidt,et al.  Nonlinear optical devices based on a transparency in semiconductor intersubband transitions , 1996 .

[14]  M. Beck,et al.  ac Stark splitting and quantum interference with intersubband transitions in quantum wells. , 2005, Physical review letters.

[15]  Jin-Yue Gao,et al.  Ultrafast all optical switching via tunable Fano interference. , 2005, Physical review letters.

[16]  M. Beck,et al.  Gain without inversion in semiconductor nanostructures , 2006 .

[17]  P. Knight,et al.  Transparency induced via decay interference , 1999 .

[18]  M. Xiao,et al.  Effect of spontaneously generated coherence on the dynamics of multi-level atomic systems , 2004 .

[19]  T. Elsaesser,et al.  Phase-resolved nonlinear response of a two-dimensional electron gas under femtosecond intersubband excitation. , 2004, Physical review letters.

[20]  Chin-Rong Lee,et al.  Model for an inversionless two-color laser , 2005 .

[21]  G. Strasser,et al.  Pulse-induced quantum interference of intersubband transitions in coupled quantum wells , 2004 .

[22]  Harris,et al.  Dispersive properties of electromagnetically induced transparency. , 1992, Physical review. A, Atomic, molecular, and optical physics.