Nonlinear optical rectification in semiparabolic quantum wells with an applied electric field

Nonlinear optical rectification and optical absorption in GaAs–Ga1–xAlxAs asymmetric double quantum wells: Combined effects of applied electric and magnetic fields and hydrostatic pressure

“…This quantity grows with the increase of the barrier width. For the asymmetric configuration of the DQW under the effect of the negative electric field-and P ¼0-the increasing of the barrier width leads to a positive growing of z 11 , and also to a negative increment of z 22 . This means that the absolute value of the difference, jDz 21 j, will increase with the widening of the barrier.…”

“…Indeed, very large second-order nonlinear optical properties associated with ISBT such as the second harmonic generation (SHG) [3], the nonlinear optical rectification [4], and frequency down conversion [5], and third-order nonlinear optical properties such as the dc Kerr effect [6], third harmonic generation (THG) [7], and four-wave mixing [8] have been observed experimentally. Following these experimental observations, many theoretical studies related to the optical nonlinearities have also been performed [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

“…Such an asymmetry in the potential profile can be obtained either by applying an electric field or by compositionally grading the potential profile [9,18,21,22].…”

Intensity-dependent nonlinear optical properties in a modulation-doped single quantum well

“…Many studies associated with both the ISB optical transitions and the nonlinear optical properties induced by interband and ISB transitions in semiconductor quantum well [28][29][30][31][32][33][34][35][36][37][38][39] and quantum dot (QD) [40][41][42] structures are reported in the literature. Ahn and Chuang [28] calculated the linear and nonlinear ISB optical absorption coefficients in a semiconductor QW.…”

“…The THz nonlinear absorption of asymmetric double quantum wells is calculated by Bedoya and Camacho [31]. Karabulut et al [32][33][34] investigated the linear and nonlinear optical properties for QW structures having different confining potential profiles. Yildirim and Tomak [35] studied the effects of the asymmetry and electric field on the nonlinear ISB optical absorption GaAs QWs.…”