Efficient four-wave mixing of a coupled double quantum-well nanostructure

Control of the optical multistability in a three-level ladder-type quantum well system

“…It should be worth pointing out that a great deal of nonlinear quantum optical phenomena based on the quantum interference and coherence are also been extensively studied in the semiconductor quantum wells (SQWs) in recent years [34][35][36][37][38][39][40][41][42][43][44][45][46][47], such as gain without inversion [34][35][36], electromagnetically induced transparency [37][38][39][40]46], optical bistability [41,42], Kerr nonlinearity [43], optical soliton [44], four-wave mixing [45]. The reason for this is mainly the phenomena in the SQWs have many potentially important applications in optoelectronics and solid-state quantum information science.…”

High Efficiency Four-Wave Mixing with Relaxation Coupling of Longitude-Optical Phonons in Semiconductor Quantum Wells*

“…There is a competition between the constructive and destructive coherences via the coupling and back-coupling excitation channels in the conduction electron system, and the conversion efficiency approaches a constant due to the balance competition. [27] The process of the interband excitation can heat the conduction electron system more effectively and induces a secondary process where the LOP possibly induce the indirect transition. [37] Therefore the effect of the cross-coupling LOP relaxation enables to enhance the strength of the interference.…”

Er 3+ ion concentration effect on transient and steady-state behavior in Er 3+ :YAG crystal

“…It is well known that quantum coherence and interference can lead to many interesting phenomena in nonlinear and quantum optics. Electromagnetically induced transparency (EIT), [1,2] lasing without inversion (LWI), [3][4][5] fourwave mixing (FWM), [6][7][8][9][10] large refractive index, [10][11][12][13][14] electron localization, [15][16][17][18][19] optical bistabilty (OB) and multistability (OM), [20][21][22][23][24][25][26][27][28][29] and many other interesting phenomena [30][31][32][33][34][35][36][37][38][39] have been studied theoretically and experimentally by many research groups in recent years. More recently, it has been shown that semiconductor quantum wells (SQWs) and quantum dots (SQDs) have properties similar to atomic systems such as discrete energy levels and have many essential advantages that the atomic media do not have, such as long dephasing times and large electric dipole moments due to their small effective electron mass.…”